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15

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504

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504

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Original Steinmetz scan crop rli-fig-14-spectrum-of-radiation
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Radiation, Light and Illumination

Radiation, Light and Illumination, printed page 18, Fig. 14

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Original Steinmetz scan crop radiation-light-and-illumination-fig-015-original-crop
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Radiation, Light and Illumination

Radiation, Light and Illumination, printed page 22, PDF page 42; Fig. 15

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Original Steinmetz scan crop radiation-light-and-illumination-fig-018-original-crop
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Radiation, Light and Illumination

Radiation, Light and Illumination, printed page 28, PDF page 48; Fig. 18

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Original Steinmetz scan crop radiation-light-and-illumination-fig-019-original-crop
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Radiation, Light and Illumination

Radiation, Light and Illumination, printed page 29, PDF page 49; Fig. 19

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Original Steinmetz scan crop radiation-light-and-illumination-spectrum-table-original-crop
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Radiation, Light and Illumination

Radiation, Light and Illumination, printed page 17, PDF page 37; Spectrum of Radiation table preceding Fig. 14

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Original Steinmetz scan crop acp-fig-21-vector-diagram-transformer
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Theory and Calculation of Alternating Current Phenomena

Theory and Calculation of Alternating Current Phenomena, Chapter V, printed page 30, PDF page 58; Fig. 21

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Original Steinmetz scan crop acp-fig-22-rectangular-components
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Theory and Calculation of Alternating Current Phenomena

Theory and Calculation of Alternating Current Phenomena, Chapter V, printed page 31, PDF page 59; Fig. 22

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Original Steinmetz scan crop acp-fig-23-resultant-components
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Theory and Calculation of Alternating Current Phenomena

Theory and Calculation of Alternating Current Phenomena, Chapter V, printed page 32, PDF page 60; Fig. 23

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Original Steinmetz scan crop acp-fig-24-quarter-period-rotation
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Theory and Calculation of Alternating Current Phenomena

Theory and Calculation of Alternating Current Phenomena, Chapter V, printed page 33, PDF page 61; Fig. 24

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Theory and Calculation of Transient Electric Phenomena and Oscillations

Theory and Calculation of Transient Electric Phenomena and Oscillations, Introduction, printed page 21, PDF page 53; Fig. 4

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Theory and Calculation of Transient Electric Phenomena and Oscillations

Theory and Calculation of Transient Electric Phenomena and Oscillations, Condenser Charge and Discharge, printed page 52, PDF page 84; Fig. 11

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Theory and Calculation of Transient Electric Phenomena and Oscillations

Theory and Calculation of Transient Electric Phenomena and Oscillations, Condenser Charge and Discharge, printed page 58, PDF page 90; Fig. 12

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Theory and Calculation of Transient Electric Phenomena and Oscillations

Theory and Calculation of Transient Electric Phenomena and Oscillations, Condenser Charge and Discharge, printed page 61, PDF page 93; Fig. 13

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Theory and Calculation of Transient Electric Phenomena and Oscillations

Theory and Calculation of Transient Electric Phenomena and Oscillations, Condenser Charge and Discharge, printed page 62, PDF page 94; Fig. 14

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Theory and Calculation of Transient Electric Phenomena and Oscillations

Theory and Calculation of Transient Electric Phenomena and Oscillations, Condenser Charge and Discharge, printed page 65, PDF page 97; Fig. 15

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SourceYearCandidate ReferencesPromoted CropsSection-LinkedOpen
Theory and Calculation of Alternating Current Phenomena19161454145source text - workbench
Radiation, Light and Illumination190998598source text - workbench
Theory and Calculation of Alternating Current Phenomena190091091source text - workbench
Theory and Calculation of Electric Circuits191737037source text - workbench
Theory and Calculation of Alternating Current Phenomena189732032source text - workbench
Four Lectures on Relativity and Space192319019source text - workbench
Elementary Lectures on Electric Discharges, Waves and Impulses, and Other Transients191418018source text - workbench
Elementary Lectures on Electric Discharges, Waves and Impulses, and Other Transients191116016source text - workbench
General Lectures on Electrical Engineering190814014source text - workbench
Theory and Calculation of Electric Apparatus191713013source text - workbench
Theoretical Elements of Electrical Engineering191510010source text - workbench
Engineering Mathematics: A Series of Lectures Delivered at Union College1911909source text - workbench
Investigation of Some Trouble in the Generating System of the Commonwealth Edison Co.1919101source text - workbench
Theory and Calculation of Transient Electric Phenomena and Oscillations1909161source text - workbench
America and the New Epoch1916000source text - workbench

The rows below are OCR/PDF-text candidates. Captions may include nearby text, line breaks, OCR mistakes, or partial figure labels. Treat them as a locator for scan review, not a final caption.

Theory and Calculation of Alternating Current Phenomena 145 candidate figure references - 4 promoted crops
FigureOCR/PDF-Text Caption CandidateLocationSectionOpenStatus
Fig. 6maximum variation of the sine is equal to the variation of the Fig. 6. Fig. 7.line 1864Chapter 2: Instantaneous Values And Integral Valuestext - workbenchneeds-verification
Fig. 7Fig. 6. Fig. 7. corresponding arc, and consequently the maximum variation ofline 1867Chapter 2: Instantaneous Values And Integral Valuestext - workbenchneeds-verification
Fig. 1021 Fig. 10. phase angle — /3’ = — (a’ — ??]) = 10 A, and the equations ofline 2262Chapter 4: Vector Representationtext - workbenchneeds-verification
Fig. 16^E, Fig. 16. Fig. 17.line 2534Chapter 4: Vector Representationtext - workbenchneeds-verification
Fig. 17Fig. 16. Fig. 17. the current by the angle, Q. The voltage consumed by the resist-line 2537Chapter 4: Vector Representationtext - workbenchneeds-verification
Fig. 19Ei-< «; Fig. 19. The primary impressed e.m.f., Ep, must thus consist of the three components OEi, OEr, and OE^, and is, therefore, theirline 2704Chapter 4: Vector Representationtext - workbenchneeds-verification
Fig. 2433 Fig. 24. polar coordinates by a vector of opposite direction, and denotedline 2937Chapter 5: Symbolic Methodtext - workbenchneeds-verification
Fig. 25,,U— — L Fig. 25. Fig. 26.line 3289Chapter 6: Topographic Methodtext - workbenchneeds-verification
Fig. 26Fig. 25. Fig. 26. in the opposite direction, from terminal B to terminal A in op-line 3292Chapter 6: Topographic Methodtext - workbenchneeds-verification
Fig. 29NON-INDUCTIVE LOAD Fig. 29. Fig. 30.line 3392Chapter 6: Topographic Methodtext - workbenchneeds-verification
Fig. 30Fig. 29. Fig. 30. these currents are represented in Fig. 29 by the vectors 01 1 =line 3395Chapter 6: Topographic Methodtext - workbenchneeds-verification
Fig. 31CAPACIir AND RESISTANCE Fig. 31. Fig. 32.line 3446Chapter 6: Topographic Methodtext - workbenchneeds-verification
Fig. 32Fig. 31. Fig. 32. triangle, Ei^E^^Ez^, the voltages at the receiver’s circuit, Ei, E2,line 3449Chapter 6: Topographic Methodtext - workbenchneeds-verification
Fig. 33RESISTANCE AND LEAKAGE Fig. 33. 16 I TRANSMISSIONline 3554Chapter 6: Topographic Methodtext - workbenchneeds-verification
Fig. 3490” LAG Fig. 34. and generator currents, /i”, 72°, I^, over the topographical char-line 3566Chapter 6: Topographic Methodtext - workbenchneeds-verification
Fig. 35RESISTANCE AND LEAKAGE Fig. 35. their difference of phase are plotted in Fig. 35 in rectangularline 3605Chapter 6: Topographic Methodtext - workbenchneeds-verification
Fig. 37represented by an increase of angle B in counter-clockwise rota- FiG. 37 tion. That is, the positive direction, or increase of time, isline 3691Chapter 7: Polar Coordinates And Polar Diagramstext - workbenchneeds-verification
Fig. 41^i Fig. 41. Fig. 42.line 3828Chapter 7: Polar Coordinates And Polar Diagramstext - workbenchneeds-verification
Fig. 42Fig. 41. Fig. 42. then appear in the vector representation of the time diagram orline 3831Chapter 7: Polar Coordinates And Polar Diagramstext - workbenchneeds-verification
Fig. 43E^-^ Fig. 43. Fig. 45.line 3856Chapter 7: Polar Coordinates And Polar Diagramstext - workbenchneeds-verification
Fig. 45Fig. 43. Fig. 45. lagging behind the voltage:line 3859Chapter 7: Polar Coordinates And Polar Diagramstext - workbenchneeds-verification
Fig. 46then means: Fig. 46. POLAR COORDINATES AND POLAR DIAGRAMS 51line 3872Chapter 7: Polar Coordinates And Polar Diagramstext - workbenchneeds-verification
Fig. 48^ Fig. 48. R’line 4049Chapter 7: Polar Coordinates And Polar Diagramstext - workbenchneeds-verification
Fig. 497 1.8 Fig. 49. The sign in the complex expression of admittance is always opposite to that of impedance; this is obvious, since if the cur-line 4618Chapter 8: Admittance, Conductance, Susceptancetext - workbenchneeds-verification
Fig. 51Eo E Fig. 51. Mline 5008Chapter 9: Circuits Containing Resistance, Inductive Reactance, And Condensive Reactancetext - workbenchneeds-verification
Fig. 52Eo Fig. 52. Fig. 53.line 5025Chapter 9: Circuits Containing Resistance, Inductive Reactance, And Condensive Reactancetext - workbenchneeds-verification
Fig. 53Fig. 52. Fig. 53. 2. Reactance in Series with a Circuitline 5028Chapter 9: Circuits Containing Resistance, Inductive Reactance, And Condensive Reactancetext - workbenchneeds-verification
Fig. 54ohms inductance-’— reactance-^condensance Fig. 54. E^, are shown for various conditions of a receiver circuit andline 5409Chapter 9: Circuits Containing Resistance, Inductive Reactance, And Condensive Reactancetext - workbenchneeds-verification
Fig. 550 Fig. 55. Fig. 56.line 5474Chapter 9: Circuits Containing Resistance, Inductive Reactance, And Condensive Reactancetext - workbenchneeds-verification
Fig. 56Fig. 55. Fig. 56. Fig. 57.line 5477Chapter 9: Circuits Containing Resistance, Inductive Reactance, And Condensive Reactancetext - workbenchneeds-verification
Fig. 57Fig. 56. Fig. 57. is, the current and e.m.f. in the supply circuit are in phase withline 5480Chapter 9: Circuits Containing Resistance, Inductive Reactance, And Condensive Reactancetext - workbenchneeds-verification
Fig. 58^w=+90 80 70 60 50 40 30 20 10 0 10 20 30 40 50 60 70 80 90 degrees lag-«- phase difference in consumer circuit-*- lead Fig. 58. In Figs. 59 and 60, the same curves are plotted as in Fig. 58, but in Fig. 59 with the reactance, x, of the receiver circuit asline 5572Chapter 9: Circuits Containing Resistance, Inductive Reactance, And Condensive Reactancetext - workbenchneeds-verification
Fig. 59+1 +.9 +.8 +.7 +.6 +.5 +.4 +.3 +.2 +.1 0 -.1 -.2 -.3 -.4 -.5 -.6 reactance of consumer circuit Fig. 59. -.7 -.8 -.9-10line 5894Chapter 9: Circuits Containing Resistance, Inductive Reactance, And Condensive Reactancetext - workbenchneeds-verification
Fig. 60_ resistance of . consumer circuit Fig. 60. ,7 .6 .5 .4 .3 .2 .1 .0line 6052Chapter 9: Circuits Containing Resistance, Inductive Reactance, And Condensive Reactancetext - workbenchneeds-verification
Fig. 611. .9 .8 .7 .6 .5 ,4 .3 .2 .1 0 -.1 -.2 -.3 -.1 -.5 -.6 -.7 -.8 -.9-L X — ^ Fig. 61. Eline 6302Chapter 9: Circuits Containing Resistance, Inductive Reactance, And Condensive Reactancetext - workbenchneeds-verification
Fig. 62tro Fig. 62. Fig. 63.line 6333Chapter 9: Circuits Containing Resistance, Inductive Reactance, And Condensive Reactancetext - workbenchneeds-verification
Fig. 63Fig. 62. Fig. 63. 72line 6336Chapter 9: Circuits Containing Resistance, Inductive Reactance, And Condensive Reactancetext - workbenchneeds-verification
Fig. 65loss of power. Fig. 65. Then, if Eo = impressed e.m.f., the current in receiver circuit isline 6409Chapter 9: Circuits Containing Resistance, Inductive Reactance, And Condensive Reactancetext - workbenchneeds-verification
Fig. 671 Fig. 67. 5. Constant Potential — Constant-current Transformationline 6939Chapter 9: Circuits Containing Resistance, Inductive Reactance, And Condensive Reactancetext - workbenchneeds-verification
Fig. 68supply, and inversely. Fig. 68 The generation of alternating-current electric power almost always takes place at constant potential. For some purposes,line 6973Chapter 9: Circuits Containing Resistance, Inductive Reactance, And Condensive Reactancetext - workbenchneeds-verification
Fig. 720 Fig. 72. .03 ,03 M. .05 .00 .07 .OSline 8597Chapter 10: Resistance And Reactance Of Transmissiontext - workbenchneeds-verification
Fig. 76» Fig. 76. 10 20 30 10 50 60 7.0 .80 90 100line 9705Chapter 10: Resistance And Reactance Of Transmissiontext - workbenchneeds-verification
Fig. 77AMPERES LOAD « l Fig. 77. and the leading quadrature component of current required to compensate for the line reactance x at maximum current, im, isline 10085Chapter 11: Phase Controltext - workbenchneeds-verification
Fig. 78::} Fig. 78. 87. Equation (28) shows that there are two values of x: Xi and X2; and corresponding thereto two values of 60:^01 and 602,line 10552Chapter 11: Phase Controltext - workbenchneeds-verification
Fig. 81^ Fig. 81. The general character of these current waves is, that the maxi-line 11510Chapter 12: Effective Resistance And Reactancetext - workbenchneeds-verification
Fig. 82then Fig. 82. — X^line 12025Chapter 12: Effective Resistance And Reactancetext - workbenchneeds-verification
Fig. 86n = NUMBER OF TURNS Fig. 86. 350line 12600Chapter 12: Effective Resistance And Reactancetext - workbenchneeds-verification
Fig. 87/ = FREQUENCY Fig. 87. 400line 12686Chapter 12: Effective Resistance And Reactancetext - workbenchneeds-verification
Fig. 88200 250 Fig. 88. 300line 12813Chapter 12: Effective Resistance And Reactancetext - workbenchneeds-verification
Fig. 89/=CYCLES Fig. 89. 300line 12940Chapter 12: Effective Resistance And Reactancetext - workbenchneeds-verification
Fig. 90n=NUMBER OF TURNS Fig. 90. 350line 13034Chapter 12: Effective Resistance And Reactancetext - workbenchneeds-verification
Fig. 92magnetic flux inclosed by the zone is SuV. Fig. 92. Hence, the e.m.f. generated in this zone isline 13742Chapter 13: Foucault Or Eddy Currentstext - workbenchneeds-verification
Fig. 9393. Fig. 93. 110. Demagnetizing, or screening effect of eddy currents.line 13860Chapter 13: Foucault Or Eddy Currentstext - workbenchneeds-verification
Fig. 94du Fig. 94. The current inclosed by this zone is /„line 14074Chapter 13: Foucault Or Eddy Currentstext - workbenchneeds-verification
Fig. 96^ m Fig. 96. )Jline 15113Chapter 14: Dielectric Lossestext - workbenchneeds-verification
Fig. 97’ m Fig. 97. throughout the field section, but the voltage gradient in theline 15131Chapter 14: Dielectric Lossestext - workbenchneeds-verification
Fig. 98do so. Fig. 98. Fig. 99.line 15252Chapter 14: Dielectric Lossestext - workbenchneeds-verification
Fig. 99Fig. 98. Fig. 99. h’5line 15255Chapter 14: Dielectric Lossestext - workbenchneeds-verification
Fig. 100JTTTTTTTTTTTTTTTTTTTTTTT- Fig. 100. In this case the intensity as well as phase of the current, and consequently of the counter e.m.f. of inductive reactance andline 15474Chapter 15: Distributed Capacity, Inductance, Resistance, And Leakagetext - workbenchneeds-verification
Fig. 101iEo Fig. 101. Denoting in Fig. 101.line 15606Chapter 15: Distributed Capacity, Inductance, Resistance, And Leakagetext - workbenchneeds-verification
Fig. 102phase (for convenience, as intensities, the effective values are Fig. 102. used throughout), assuming its phase as the downwards vertical; that is, counting the time from the moment where the risingline 16703Chapter 17: The Alternating-Current Transformertext - workbenchneeds-verification
Fig. 103Eo Fig. 103. Figs. 103 to 109 give the polar diagram of a transformer havingline 16830Chapter 17: The Alternating-Current Transformertext - workbenchneeds-verification
Fig. 104ALTERNATING-CURRENT TRANSFORMER 193 Fig. 104. ./ ^^0line 16861Chapter 17: The Alternating-Current Transformertext - workbenchneeds-verification
Fig. 105./ ^^0 Fig. 105. 13line 16867Chapter 17: The Alternating-Current Transformertext - workbenchneeds-verification
Fig. 10613 Fig. 106. 194 ALTERNATING-CURRENT PHENOMENAline 16873Chapter 17: The Alternating-Current Transformertext - workbenchneeds-verification
Fig. 107194 ALTERNATING-CURRENT PHENOMENA Fig. 107. Fia. 108.line 16879Chapter 17: The Alternating-Current Transformertext - workbenchneeds-verification
Fig. 113gram of Fig. 110, the diagrams for the constant primary im- FiG. 113. pressed e.m.f. (Fig. Ill), and for constant secondary terminalline 16908Chapter 17: The Alternating-Current Transformertext - workbenchneeds-verification
Fig. 114Circuit Fig. 114. 152. Separating now the internal secondary impedance from the external secondary impedance, or the impedance of theline 17408Chapter 17: The Alternating-Current Transformertext - workbenchneeds-verification
Fig. 116”El Fig. 116. It is obvious, therefore, that if the transformer contains sev-line 17474Chapter 17: The Alternating-Current Transformertext - workbenchneeds-verification
Fig. 117of admittance Yq. Thus, double transformation will be represented by diagram. Fig. 117. With this the discussion of the alternate-current transformer ends, by becoming identical with that of a divided circuit con-line 17508Chapter 17: The Alternating-Current Transformertext - workbenchneeds-verification
Fig. 118is the angle of secondary lag. Fig. 118. The secondary m.m.f., OGi, is in the direction of the vector,line 18102Chapter 18: Polyphase Induction Motorstext - workbenchneeds-verification
Fig. 119determined thus, Fig. 119. Letline 18133Chapter 18: Polyphase Induction Motorstext - workbenchneeds-verification
Fig. 120AMPERES Fig. 120. 90line 19057Chapter 18: Polyphase Induction Motorstext - workbenchneeds-verification
Fig. 121AMPERES Fig. 121. 250line 19500Chapter 18: Polyphase Induction Motorstext - workbenchneeds-verification
Fig. 122. Fig. 122. On the same figure is shown the current per line, in dotted lines, with the verticals or torque as abscissas, and the hori-line 19753Chapter 18: Polyphase Induction Motorstext - workbenchneeds-verification
Fig. 123DO Fig. 123. hence, the efficiency is, Pi_ ^ ai (1 - s)line 20132Chapter 18: Polyphase Induction Motorstext - workbenchneeds-verification
Fig. 1240 Fig. 124. and the apparent torque efficiency,^line 20407Chapter 18: Polyphase Induction Motorstext - workbenchneeds-verification
Fig. 125KX) Fig. 125. voltage will rise until by magnetic saturation in the induction generator its power-factor has fallen to equality with that ofline 20763Chapter 19: Induction Generatorstext - workbenchneeds-verification
Fig. 126)00 Fig. 126. the efficiency.line 21111Chapter 19: Induction Generatorstext - workbenchneeds-verification
Fig. 1270 Fig. 127. and the terminal voltage at the synchronous motor,line 21509Chapter 19: Induction Generatorstext - workbenchneeds-verification
Fig. 128Eo.U.Yj Fig. 128. shading coil is commonly used) is the monocyclic starting device. It consists in producing externally to the motor a system ofline 22028Chapter 20: Single-Phase Induction Motorstext - workbenchneeds-verification
Fig. 129former; hence fixed in space relative to the field m.m.f., or uni- FiG. 129. directional; but pulsating in a single-phase alternator. In the polyphase alternator, when evenly loaded or balanced, the result-line 22319Chapter 21: Alternating-Current Generatortext - workbenchneeds-verification
Fig. 130be assumed as constant. Fig. 130. The relative position of the armature m.m.f. with respect toline 22363Chapter 21: Alternating-Current Generatortext - workbenchneeds-verification
Fig. 131excitation, increases the voltage; with lagging current it weakens Fig. 131. the field, and thereby decreases the voltage in a generator. Ob- viously, the opposite holds for a synchronous motor, in which theline 22406Chapter 21: Alternating-Current Generatortext - workbenchneeds-verification
Fig. 139phase, the virtual generated e.m.f. Fig. 139. The armature self-induction consumes an e.m.f., OE3, 90°line 24075Chapter 22: Armature Reactions Of Alternatorstext - workbenchneeds-verification
Fig. 140OFi’, and OF” = OFi”. Fig. 140. Let now (P’ = permeance of the field magnetic circuit;line 24385Chapter 22: Armature Reactions Of Alternatorstext - workbenchneeds-verification
Fig. 141actual value of the field onward Fig. 141. -as shown by Fig, 141.line 24490Chapter 22: Armature Reactions Of Alternatorstext - workbenchneeds-verification
Fig. 142AMPERES Fig. 142. an alternator of pulsating synchronous reactance, the wave-shape of the machine changes more or less with the load and the char-line 25128Chapter 22: Armature Reactions Of Alternatorstext - workbenchneeds-verification
Fig. 143mnrmnmnwv Fig. 143. allel; as, for instance, by the arrangement shown in Fig. 143,line 25260Chapter 23: Synchronizing Alternatorstext - workbenchneeds-verification
Fig. 144nal admittance of the second machine. Fig. 144. Then, er + e’r = al^•line 25324Chapter 23: Synchronizing Alternatorstext - workbenchneeds-verification
Fig. 145impedance of the line, and the e.m.f., Es^E = E4, consumed by Fig. 145. the impedance of the generator. Hence, dividing the oppositeline 25805Chapter 24: Synchronous Motortext - workbenchneeds-verification
Fig. 146304 ALTERNATING-CURRENT PHENOMENA Fig. 146. Fig. 147.line 25830Chapter 24: Synchronous Motortext - workbenchneeds-verification
Fig. 147Fig. 146. Fig. 147. SYNCHRONOUS MOTORline 25833Chapter 24: Synchronous Motortext - workbenchneeds-verification
Fig. 148305 Fig. 148. Fig. 149.line 25842Chapter 24: Synchronous Motortext - workbenchneeds-verification
Fig. 149Fig. 148. Fig. 149. 20line 25845Chapter 24: Synchronous Motortext - workbenchneeds-verification
Fig. 150have < EiOE = 90°, Ei = Eo, thus: OEi = EEo = OEo = E^r, Fig. 150. Fig. 151.line 25963Chapter 24: Synchronous Motortext - workbenchneeds-verification
Fig. 151Fig. 150. Fig. 151. that is, EEi = 2 £“0. That means the characteristic curve, Ci, isline 25966Chapter 24: Synchronous Motortext - workbenchneeds-verification
Fig. 152shown in Fig. 151. Fig. 152. If El < Eo, at small Eo — Ei, H can be below the zero line,line 25997Chapter 24: Synchronous Motortext - workbenchneeds-verification
Fig. 154of the cases the current is leading, in the other lagging. Fig. 154. In Figs. 155 to 158 are shown diagrams, giving the pointsline 26150Chapter 24: Synchronous Motortext - workbenchneeds-verification
Fig. 15520 < / < 30 Fig. 155. Fig. 156.line 26186Chapter 24: Synchronous Motortext - workbenchneeds-verification
Fig. 156Fig. 155. Fig. 156. Fig. 157.line 26188Chapter 24: Synchronous Motortext - workbenchneeds-verification
Fig. 157Fig. 156. Fig. 157. Fig. 158.line 26190Chapter 24: Synchronous Motortext - workbenchneeds-verification
Fig. 158Fig. 157. Fig. 158. As seen, the permissible value of counter e.m.f., Ei, and ofline 26192Chapter 24: Synchronous Motortext - workbenchneeds-verification
Fig. 159e=*iie— -i Fig. 159. Fig. 160.line 26540Chapter 24: Synchronous Motortext - workbenchneeds-verification
Fig. 160Fig. 159. Fig. 160. This equation shows that, at given impressed e.m.f., eo, andline 26543Chapter 24: Synchronous Motortext - workbenchneeds-verification
Fig. 161/ = er + zH- — co^ ± 2 xie^ = 0; Fig. 161. by the condition,line 26833Chapter 24: Synchronous Motortext - workbenchneeds-verification
Fig. 162MO ma ‘i&bo ~ 2000 2500 -^000 saoo iooo taoo eooo ewo Fig. 162. Minimum counter e.m.f. point of this curve,line 27147Chapter 24: Synchronous Motortext - workbenchneeds-verification
Fig. 1632500 Volts Fig. 163. 3000line 27254Chapter 24: Synchronous Motortext - workbenchneeds-verification
Fig. 164X = reactance of the circuit between counter e.m.f., e, and im- FiG. 164. pressed e.m.f., eo, OEr = iiv = e.m.f. consumed by resistance, OEj: = iix = e.m.f. consumed by reactance of the power com-line 27404Chapter 24: Synchronous Motortext - workbenchneeds-verification
Fig. 165200 400 COO SOO 1000 1200 1100 1600 1800 2000 2200 2400 2000^2800 8000 3200 S400 3CO0 SSOO 4000 4200 VOLTS = e Fig. 165. 248. As illustrations are plotted, in Fig. 165, curves giving the current, i, as function of the counter or nominal generated e.m.f.,line 27859Chapter 24: Synchronous Motortext - workbenchneeds-verification
Fig. 166KILOWATTS Fig. 166. 1 1line 28114Chapter 24: Synchronous Motortext - workbenchneeds-verification
Fig. 168KILOWATTS Fig. 168. 229. I. hoad Curves of Synchronous Motor.line 28468Chapter 24: Synchronous Motortext - workbenchneeds-verification
Fig. 169KILOWATTS Fig. 169. For low values of e (e = 1600, under excitation, Fig. 166),line 28681Chapter 24: Synchronous Motortext - workbenchneeds-verification
Fig. 170600 600 KILOWATTS Fig. 170. It is interesting that at e = 2180, the power-factor is practi-line 28903Chapter 24: Synchronous Motortext - workbenchneeds-verification
Fig. 171KILOWATTS Fig. 171. that at the same impressed voltage, with the same current inputline 29234Chapter 24: Synchronous Motortext - workbenchneeds-verification
Fig. 1721 180 Fig. 172. Even with an unsymmetrical distribution of the magnetic flux in the air-gap, the e.m.f. wave generated in a full-pitchline 29650Chapter 25: Distortion Of Wave-Shape And Its Causestext - workbenchneeds-verification
Fig. 173180 Fig. 173. magnetic reluctance, or its reciprocal, the magnetic reactance of the circuit. In consequence thereof the magnetism per field-line 29845Chapter 25: Distortion Of Wave-Shape And Its Causestext - workbenchneeds-verification
Fig. 178’ Fig. 178. tage drops with the further increase of current, and then rises again with the decreasing current, until at C, the intersectionline 31252Chapter 25: Distortion Of Wave-Shape And Its Causestext - workbenchneeds-verification
Fig. 1791 Fig. 179. flux and the current, therefore, cannot both be sine waves; if the magnetic flux and therefore the generated e.m.f. are sine waves,line 31517Chapter 25: Distortion Of Wave-Shape And Its Causestext - workbenchneeds-verification
Fig. 180-B Fig. 180. the e.m.f., e = J? sin </>, and a wattless component, i” , in quadra-line 31654Chapter 25: Distortion Of Wave-Shape And Its Causestext - workbenchneeds-verification
Fig. 181where Fig. 181. c„ = \/a„2 + 6n^, 6„line 31840Chapter 25: Distortion Of Wave-Shape And Its Causestext - workbenchneeds-verification
Fig. 182\v Fig. 182. B. Sine Wave of Currentline 31959Chapter 25: Distortion Of Wave-Shape And Its Causestext - workbenchneeds-verification
Fig. 183y Fig. 183. As seen, with a sine wave of current traversing an iron-clad reactance, the e.m.f. wave is very greatly distorted, and theline 32214Chapter 25: Distortion Of Wave-Shape And Its Causestext - workbenchneeds-verification
Fig. 184a three-phase system with a sine wave of e.m.f. between the lines, the curves of exciting current, magnetic flux and voltage per transformer, or between lines and neutral, are constructed in Fig. 184. i is the exciting current of the transformer, and contains all the harmonics, except the third and its multiples. It is givenline 32390Chapter 25: Distortion Of Wave-Shape And Its Causestext - workbenchneeds-verification
Fig. 1854i’ Fig. 185. triple and the quintuple harmonic upon the fundamental sine wave.line 32554Chapter 26: Effects Of Higher Harmonicstext - workbenchneeds-verification
Fig. 186ft Fig. 186. As seen, the effect of the triple harmonic is, in the first figure, to flatten the zero values and point the maximum values of theline 32594Chapter 26: Effects Of Higher Harmonicstext - workbenchneeds-verification
Fig. 1910 Fig. 191. of the harmonic, and the winding of the motor primary. Thus,line 34764Chapter 27: Symbolic Representation Of General Alternating Wavestext - workbenchneeds-verification
Fig. 193interlinked system. Fig. 193. The four-phase system as derived by connecting four equi- distant points of a continuous-current armature with fourline 34858Chapter 28: General Polyphase Systemstext - workbenchneeds-verification
Fig. 194^<MS^iB>^ 4 Fig. 194. The three-phase system, consisting of three e.m.fs. displaced by one-third of a period, is used exclusively as interlinked system.line 34897Chapter 28: General Polyphase Systemstext - workbenchneeds-verification
Fig. 195—E nmTswusvsvrno- Fig. 195. a three-phase system, in the alternating supply circuit of large synchronous converters.line 34916Chapter 28: General Polyphase Systemstext - workbenchneeds-verification
Fig. 208^ Fig. 208. 2. The ring connection, represented diagrammatically in Fig.line 35765Chapter 31: Interlinked Polyphase Systemstext - workbenchneeds-verification
Fig. 2091 Fig. 209. system. In a three-phase system this connection is called theline 35796Chapter 31: Interlinked Polyphase Systemstext - workbenchneeds-verification
Fig. 210nm Fig. 210. The reverse thereof, or the Y-delta connection, is undesirable on unbalanced load, since it gives what has been called a “float-line 36262Chapter 32: Transformation Of Polyphase Systemstext - workbenchneeds-verification
Fig. 211T Fig. 211. and (3) can be operated in parallel with each other, and with theline 36354Chapter 32: Transformation Of Polyphase Systemstext - workbenchneeds-verification
Fig. 212mm) mu Fig. 212. by the internal impedance of the transformers. It is convenientline 36370Chapter 32: Transformation Of Polyphase Systemstext - workbenchneeds-verification
Fig. 2131 Fig. 213. phase and inverted three-phase or polyphase monocychc, by two transformers, the secondary of one being reversed regarding itsline 36404Chapter 32: Transformation Of Polyphase Systemstext - workbenchneeds-verification
Fig. 214CMT\ rWFl Fig. 214. of the transformers contain two equal and independent (or inter- linked) coils, the three-phase sides two coils with the ratio ofline 36420Chapter 32: Transformation Of Polyphase Systemstext - workbenchneeds-verification
Fig. 215I 2 Fig. 215. ‘3 ‘2 ‘3line 36448Chapter 32: Transformation Of Polyphase Systemstext - workbenchneeds-verification
Fig. 216formation from three-phase to six-phase, shown in Fig. 216. It Fig. 216. is analogous to (7), the delta connection merely being replacedline 36458Chapter 32: Transformation Of Polyphase Systemstext - workbenchneeds-verification
Fig. 217I I Fig. 217. The primaries in 9 and 10 may be connected either delta or F,line 36487Chapter 32: Transformation Of Polyphase Systemstext - workbenchneeds-verification
Fig. 218,^-’-’ ^^ Fig. 218. The voltage between any two terminals e^ and e^ then is: e.7fc = ei — ek ’ (1)line 37147Chapter 34: Metering Of Polyphase Circuittext - workbenchneeds-verification
Fig. 219-0- FiG. 219. Thus, if Fig. 220 denotes a general three-wire, three-phase sys- tem, with the voltages and currents in the three phases:line 37331Chapter 34: Metering Of Polyphase Circuittext - workbenchneeds-verification
Fig. 220•3, ‘3 Fig. 220. The voltages may be unequal in sizes and under unequal angles, by a distortion of the three-phase triangle, but it must be:line 37344Chapter 34: Metering Of Polyphase Circuittext - workbenchneeds-verification
Fig. 221-OD- Fig. 221. system, if the current lags, the two wattmeter coils do not read alike, as the voltmeter coil in the one lags by the angle of lag ofline 37399Chapter 34: Metering Of Polyphase Circuittext - workbenchneeds-verification
Fig. 222-0- FiG. 222. In a four- wire, three-phase system, the connection of the twoline 37441Chapter 34: Metering Of Polyphase Circuittext - workbenchneeds-verification
Radiation, Light and Illumination 98 candidate figure references - 5 promoted crops
FigureOCR/PDF-Text Caption CandidateLocationSectionOpenStatus
Fig. 1tion, the time at which the moon M should disappear from sight, FIG. 1. when seen from the earth E, by passing behind Jupiter, 7 (Fig. 1), could be exactly calculated. It was found, however, that some-line 656Lecture 1: Nature And Different Forms Of Radiationtext - workbenchneeds-verification
Fig. 25_MOE_S FIG. 2. direction the light reappears. If the disk is slowly revolved, alter- nate light and darkness will be observed, but when the speed in-line 697Lecture 1: Nature And Different Forms Of Radiationtext - workbenchneeds-verification
Fig. 3from the upper surface of the plain glass plate A. A beam of FIG. 3. reflected light a, thus is a combination of a beam b and a beam c.line 785Lecture 1: Nature And Different Forms Of Radiationtext - workbenchneeds-verification
Fig. 4glass plates. At those points dv dv etc. at which the distance FIG. 4. between the two glass plates is J wave length, or j, J, etc., theline 794Lecture 1: Nature And Different Forms Of Radiationtext - workbenchneeds-verification
Fig. 5etc. in the plane of the paper, and thus perpendicular to the ray FIG. 5. of light. In the former case (a longitudinal vibration, as sound) there obviously can be no difference between the directions atline 922Lecture 1: Nature And Different Forms Of Radiationtext - workbenchneeds-verification
Fig. 9it to you, by bringing the rods near to this Crookes’ radiometer, FIG. 9. which is an instrument showing the energy of radiation. It con- sists (Fig. 10) of four aluminum vanes, mounted in a moderatelyline 1016Lecture 1: Nature And Different Forms Of Radiationtext - workbenchneeds-verification
Fig. 10(red, orange and yellow) with increase in temperature, the light FIG. 10. 12line 1075Lecture 1: Nature And Different Forms Of Radiationtext - workbenchneeds-verification
Fig. 11of the lower frequencies of visible radiation, red or orange. FIG. 11. In the tungsten lamp at high brilliancy and more still in theline 1094Lecture 1: Nature And Different Forms Of Radiationtext - workbenchneeds-verification
Fig. 12They are used in wireless telegraphy, etc. I here connect (Fig. 12) FIG. 12. the condenser C of the apparatus which I used for operating the ultra-violet arc, to a spark gap Gv of which the one side is con-line 1220Lecture 1: Nature And Different Forms Of Radiationtext - workbenchneeds-verification
Fig. 13o — ^^ — o FIG. 13. has been measured by Herz by producing standing waves by combination of main wave and reflected wave.line 1268Lecture 1: Nature And Different Forms Of Radiationtext - workbenchneeds-verification
Fig. 14as far as possible when producing light, as they consume power FIG. 14. and so lower the efficiency; the ultra-violet rays are of importance in medicine as germ killers. They are more or less destructiveline 1506Lecture 1: Nature And Different Forms Of Radiationtext - workbenchneeds-verification
Fig. 15edge of the beam reaches the boundary at D its speed changes FIG. 15. by entering the medium W — decreases in the present instance. Let then Sl = speed of propagation in medium A, S2 = speed ofline 1654Lecture 2: Relation Of Bodies To Radiationtext - workbenchneeds-verification
Fig. 16medium into another, and the higher frequencies are deflected FIG. 16. more than the lower frequencies, thus showing that the velocity of propagation decreases with an increase of frequency, that is,line 1819Lecture 2: Relation Of Bodies To Radiationtext - workbenchneeds-verification
Fig. 17VIOLET FIG. 17. a number of very faint red and orange lines, of which three are indicated dotted in Fig. 17.line 1885Lecture 2: Relation Of Bodies To Radiationtext - workbenchneeds-verification
Fig. 18perature rise, their brilliancy is greatly increased. FIG. 18. Combinations of the different types of spectra: continuous spectrum, line spectrum, band spectrum, reversed spectrum,line 1974Lecture 2: Relation Of Bodies To Radiationtext - workbenchneeds-verification
Fig. 19and the body thus acts as a mirror, that is, gives a virtual image FIG. 19. back of it as shown in dotted line in Fig. 18. In the latter case (Fig. 19) the light is reflected irregularly in all directions.line 2013Lecture 2: Relation Of Bodies To Radiationtext - workbenchneeds-verification
Fig. 21VIOLET FIG. 21. in the ultra-red and ultra-violet, where no power of radiation can produce visibility. It thus varies about as indicated in Fig. 22.line 2582Lecture 3: Physiological Effects Of Radiationtext - workbenchneeds-verification
Fig. 22the basis of equal ease in distinguishing objects. As the pur- FIG. 22. pose for which light is used is to distinguish objects, the correct comparison of lights obviously is on the basis of equal distinctnessline 2618Lecture 3: Physiological Effects Of Radiationtext - workbenchneeds-verification
Fig. 23v FIG. 23. meter candles (or rather log i) as abscissas, for red light, wave length 65.0; orange yellow light, wave length 59; bluish greenline 2694Lecture 3: Physiological Effects Of Radiationtext - workbenchneeds-verification
Fig. 24\ FIG. 24. (1 meter-candle is the illumination produced by 1 candle powerline 2809Lecture 3: Physiological Effects Of Radiationtext - workbenchneeds-verification
Fig. 25S FIG. 25. 62 for high intensities and changes in approximately the same range of intensities in which lwo changes; ks is also plotted inline 2945Lecture 3: Physiological Effects Of Radiationtext - workbenchneeds-verification
Fig. 26YELLOW GREEN FIG. 26. carbon filament would be somewhat like C. That is, the physio-line 3036Lecture 3: Physiological Effects Of Radiationtext - workbenchneeds-verification
Fig. 27fore, increase enormously with the increase of temperature. FIG. 27. With bodies in a vacuum, the radiation power is the power input and this above law can be used to calculate the tempera-line 4062Lecture 5: Temperature Radiationtext - workbenchneeds-verification
Fig. 28weight, exhibit a periodicity in their properties which permits FIG. 28. a systematic study of their properties. In diagram Fig. 28 theline 4310Lecture 5: Temperature Radiationtext - workbenchneeds-verification
Fig. 29\\ FIG. 29. power required to maintain the temperature is correspondingly less, hence the efficiency is the same and merely a larger radiatorline 4741Lecture 5: Temperature Radiationtext - workbenchneeds-verification
Fig. 30where colored radiation or luminescence is present. Thus the FIG. 30. radiation given by the interior of a closed body of uniform tem- perature ceases to be black body radiation if the interior is filledline 4923Lecture 5: Temperature Radiationtext - workbenchneeds-verification
Fig. 31one, the other from the other terminal. They are stationary FIG. 31. only if the gas pressure is perfectly constant, but separate and contract with the slightest change of pressure, hence are almostline 5467Lecture 6: Luminescencetext - workbenchneeds-verification
Fig. 32II II FIG. 32. decreasing gas pressure the voltage consumed in the space be-line 5499Lecture 6: Luminescencetext - workbenchneeds-verification
Fig. 33and you see the striated Geissler discharge through mercury FIG. 33. vapor appear between terminals 2 and 3, giving the green light> of the mercury spectrum. The terminals are quiet, as they doline 5680Lecture 6: Luminescencetext - workbenchneeds-verification
Fig. 343J=10 OHMS FIG. 34. and the spectrum of the arc is the spectrum of the negative ter- minal. An exception herefrom, occurs only in those cases inline 5719Lecture 6: Luminescencetext - workbenchneeds-verification
Fig. 35tendency exists of shifting the starting point, and the arc becomes FIG. 35. LUMINESCENCE.line 5836Lecture 6: Luminescencetext - workbenchneeds-verification
Fig. 36lished by the vapor stream coming from the negative. Thus the FIG. 36. arc can be started by merely starting a conducting vapor stream from the negative, as by an auxiliary arc. As soon as this con-line 5860Lecture 6: Luminescencetext - workbenchneeds-verification
Fig. 37draw it out until the arc flame wraps itself all around terminal FIG. 37. B} but the arc does not transfer. I even insert 10 ohms resist- ance rl in series with C (Fig. 37), so that the voltage AB is aboutline 5898Lecture 6: Luminescencetext - workbenchneeds-verification
Fig. 38ws FIG. 38. negative, that is, at a higher potential difference and a shorter distance against A than B is. I even hold C for some time inline 5941Lecture 6: Luminescencetext - workbenchneeds-verification
Fig. 39MAA FIG. 39. current during one half-wave only, but no current at all dur- ing .the other. I show you this experimentally, using 50 voltsline 5988Lecture 6: Luminescencetext - workbenchneeds-verification
Fig. 4060 CYCLES FIG. 40. terminals. The cause is obvious: to maintain an arc betweenline 6045Lecture 6: Luminescencetext - workbenchneeds-verification
Fig. 41and thereby increasing radiation, etc. For a 13-mm. (0.5-in.) FIG. 41. arc it is approximately shown as Curve II in Fig. 41 : 20 voltsline 6080Lecture 6: Luminescencetext - workbenchneeds-verification
Fig. 43cannot freely condense, the mercury vapor pressure rises and FIG. 43. presses the mercury level down in the center tubes, up in the outside tubes, as indicated at b in Fig. 43, and therebyline 6261Lecture 6: Luminescencetext - workbenchneeds-verification
Fig. 44*m FIG. 44. to a bright pinkish-red arc, and the spectroscope shows that the spectrum lines in the red and orange have greatly increased inline 6344Lecture 6: Luminescencetext - workbenchneeds-verification
Fig. 451 0 FIG. 45. arc length, I, we get tor every value of current, i, a practically straight line, as shown for the magnetite arc in Fig. 45, for valuesline 7181Lecture 8: Arc Lamps And Arc Lightingtext - workbenchneeds-verification
Fig. 471J5 IN. FIG. 47. lengths, however, the observed values of voltage drop below the straight line, as shown in Fig. 47, and converge towards aline 7364Lecture 8: Arc Lamps And Arc Lightingtext - workbenchneeds-verification
Fig. 49arc. Thus comparing in Fig. 49 a 1-in. carbon arc A with a FIG. 49. 0.5-in. carbon arc B, the former requires, at 5 amperes, 112 volts and 560 watts, the latter only 84 volts and 420 watts,line 7635Lecture 8: Arc Lamps And Arc Lightingtext - workbenchneeds-verification
Fig. 50154 RADIATION, LIGHT, AND ILLUMINATION. FIG. 50. FIG. 51a.line 7964Lecture 8: Arc Lamps And Arc Lightingtext - workbenchneeds-verification
Fig. 5270. With the luminous arc, in which the light is proportional FIG. 52. 158line 8127Lecture 8: Arc Lamps And Arc Lightingtext - workbenchneeds-verification
Fig. 54\r FIG. 54. ous height follow each other. Thus with an average arc volt- age of 75, momentary peaks of 85 volts will probably be reachedline 8224Lecture 8: Arc Lamps And Arc Lightingtext - workbenchneeds-verification
Fig. 55as shown diagrammatically in its simplest form in Fig. 55, the FIG. 55. two white screens A and B are illuminated, the one, A, by the light, L, which is to be tested, the other, B, by the standard S,line 8712Lecture 9: Measurement Of Light And Radiationtext - workbenchneeds-verification
Fig. 57accuracy. FIG. 57. 78. When comparing lamps giving light of the same color, as incandescent lamps of the same filament temperature, that is,line 8797Lecture 9: Measurement Of Light And Radiationtext - workbenchneeds-verification
Fig. 58MEASUREMENT OF LIGHT AND RADIATION. 175 FIG. 58. the photometer may be used as far as it agrees with the lumi-line 8928Lecture 9: Measurement Of Light And Radiationtext - workbenchneeds-verification
Fig. 59Fig. 59, is the distribution curve in one meridian, it is the same FIG. 59. in every other meridian, and for photometric test of the illumi- nant it is sufficient to measure the light intensities in one merid-line 9197Lecture 9: Measurement Of Light And Radiationtext - workbenchneeds-verification
Fig. 60the former, giving a horizontal or equatorial distribution of FIG. 60. light intensity about as shown in Fig. 60. In this case the horizontal distribution curve may also be determined photo-line 9242Lecture 9: Measurement Of Light And Radiationtext - workbenchneeds-verification
Fig. 61side — minimum — intensity. Such curves are shown in Fig. 61. FIG. 61. This, however, carried out for every angle in the meridian, makes arc-light photometry rather laborious, especially asline 9306Lecture 9: Measurement Of Light And Radiationtext - workbenchneeds-verification
Fig. 62is: FIG. 62. = 27r/sin<M^line 9553Lecture 10: Light Flux And Distributiontext - workbenchneeds-verification
Fig. 64192 RADIATION, LIGHT, AND ILLUMINATION. FIG. 64. FIG. 65.line 9724Lecture 10: Light Flux And Distributiontext - workbenchneeds-verification
Fig. 65FIG. 64. FIG. 65. FIG. 66.line 9727Lecture 10: Light Flux And Distributiontext - workbenchneeds-verification
Fig. 66FIG. 65. FIG. 66. LIGHT FLUX AND DISTRIBUTION. 193line 9730Lecture 10: Light Flux And Distributiontext - workbenchneeds-verification
Fig. 67direction. FIG. 67. Straight Line or Cylindrical Radiator.line 9851Lecture 10: Light Flux And Distributiontext - workbenchneeds-verification
Fig. 6824 deg. above the horizontal, or in the space between a and a’ in Fig. 68. It is interesting to compare the three radiators, (1), (2), and (5), on the basis of equal maximum intensity, and on the basis ofline 9930Lecture 10: Light Flux And Distributiontext - workbenchneeds-verification
Fig. 70> FIG. 70. FIG. 71.line 10274Lecture 10: Light Flux And Distributiontext - workbenchneeds-verification
Fig. 71FIG. 70. FIG. 71. In Fig. 72 is plotted the intensity distribution in the meridianline 10277Lecture 10: Light Flux And Distributiontext - workbenchneeds-verification
Fig. 72(7) Single-Loop Filament. FIG. 72. 200line 10313Lecture 10: Light Flux And Distributiontext - workbenchneeds-verification
Fig. 73meridianal distribution of the sides A + B is : FIG. 73. 7 = 4 r/line 10367Lecture 10: Light Flux And Distributiontext - workbenchneeds-verification
Fig. 74Figs. 70 and 71. FIG. 74. In the meridian of minimum intensity, the light intensity 73 produced by the projection of the half circle in its own plane,line 10396Lecture 10: Light Flux And Distributiontext - workbenchneeds-verification
Fig. 75has from the center 0 of the radiator the distance FIG. 75. a = 00line 10713Lecture 10: Light Flux And Distributiontext - workbenchneeds-verification
Fig. 78^ FIG. 78. 94. In Table III are givenline 10952Lecture 10: Light Flux And Distributiontext - workbenchneeds-verification
Fig. 81V////A W/\ v////\ FIG. 81. FIG. 82.line 11172Lecture 10: Light Flux And Distributiontext - workbenchneeds-verification
Fig. 82FIG. 81. FIG. 82. LIGHT FLUX AND DISTRIBUTION.line 11175Lecture 10: Light Flux And Distributiontext - workbenchneeds-verification
Fig. 84As illustrations are plotted in Fig. 84 and recorded in Table IV, FIG. 84. 212 RADIATION, LIGHT, AND ILLUMINATION.line 11507Lecture 10: Light Flux And Distributiontext - workbenchneeds-verification
Fig. 86I = I’ = 70 (sin ^ - tan w cos 0). (10) FIG. 86. For to = 75 deg. = and a = 0.7, the intensity distributionline 11661Lecture 10: Light Flux And Distributiontext - workbenchneeds-verification
Fig. 87co2 the angle subtended by the outer edge of the reflector, from FIG. 87. the base of the arc, as diagrammatically illustrated in Fig. 87; then the intensity of the light flux of the main radiatorline 11890Lecture 10: Light Flux And Distributiontext - workbenchneeds-verification
Fig. 88Table V. FIG. 88. Substituting the numerical values in the foregoing, we have:line 12048Lecture 10: Light Flux And Distributiontext - workbenchneeds-verification
Fig. 89(36) FIG. 89. The distribution curve of such an illuminant is plotted in Fig. 89 and recorded in Table V for the valuesline 12159Lecture 10: Light Flux And Distributiontext - workbenchneeds-verification
Fig. 90(36) 7 = 70 (sin <j> - 11.43 cos <j>). FIG. 90. As comparison is given in Fig. 90 the distribution curve of the magnetite arc, which is designed of the type of Fig. 89line 12193Lecture 10: Light Flux And Distributiontext - workbenchneeds-verification
Fig. 91the point P receives light from all points of the envelope G as FIG. 91. 3-Bline 12262Lecture 10: Light Flux And Distributiontext - workbenchneeds-verification
Fig. 92a radiator giving the distribution curve shown in Fig. 92, curve I, FIG. 92. the distribution curve is changed by diffraction (frosted en- velope), to that shown in Fig. 92, curve II, but changed to thatline 12302Lecture 10: Light Flux And Distributiontext - workbenchneeds-verification
Fig. 93^ FIG. 93. be directed into the horizontal (or any other desired) direction, and the entire lens then appears luminous, as virtual radiator.line 12555Lecture 10: Light Flux And Distributiontext - workbenchneeds-verification
Fig. 94tions thereof are used, as prisms, as shown in Fig. 94, and this FIG. 94. method of light control thus called “prismatic refraction,” or, where the light does not pass through, but is reflected and turnedline 12564Lecture 10: Light Flux And Distributiontext - workbenchneeds-verification
Fig. 95a horizontal plane P, then, for a point A at the horizontal dis- FIG. 95. tance lh from the lamp, L (that is, the distance lh from the pointline 12627Lecture 11: Light Intensity And Illuminationtext - workbenchneeds-verification
Fig. 96230 RADIATION, LIGHT, AND ILLUMINATION. FIG. 96. FIG. 97,line 12973Lecture 11: Light Intensity And Illuminationtext - workbenchneeds-verification
Fig. 98side illumination, and are rounded off where the branches join. FIG. 98. Fig. 99 gives the intensity curves for the same angles, w = 30,line 13427Lecture 11: Light Intensity And Illuminationtext - workbenchneeds-verification
Fig. 9945, 60, and 75 deg., for uniform illumination only in the hori- FIG. 99. zontal plane beneath the lamp, but no illumination beyondline 13434Lecture 11: Light Intensity And Illuminationtext - workbenchneeds-verification
Fig. 100candle power: FIG. 100. I. The direct-current enclosed carbon arc, with clear innerline 14004Lecture 11: Light Intensity And Illuminationtext - workbenchneeds-verification
Fig. 10108 0,4 06 08 10 12 It 16 18 20 22 24 26 28 FIG. 101. curve of the character discussed in Fig. 92. III. The magnetiteline 14030Lecture 11: Light Intensity And Illuminationtext - workbenchneeds-verification
Fig. 102105. With lamps placed at equal distances 4o, and equal FIG. 102. heights lv, as shown diagrammatically in Fig. 102, the illumina- tion of any point A of the street surface is due to the light fluxline 14060Lecture 11: Light Intensity And Illuminationtext - workbenchneeds-verification
Fig. 107lamp. Such a distribution curve can, for instance, be produced FIG. 107. by a spiral filament F (Fig. 108) located eccentric in a spher- ical globe G, of which the upper part is clear glass and coveredline 14597Lecture 11: Light Intensity And Illuminationtext - workbenchneeds-verification
Fig. 108of table, etc.). FIG. 108. 244 RADIATION, LIGHT, AND ILLUMINATION.line 14662Lecture 11: Light Intensity And Illuminationtext - workbenchneeds-verification
Fig. 111by 7. It is given in Fig. 111. FIG. 111. The illumination, i, at any point, P, then is derived by adding the illumination ia, ib, ic, id of the four lamps a, 6, c, d, takenline 15096Lecture 11: Light Intensity And Illuminationtext - workbenchneeds-verification
Fig. 116/ FIG. 116. 108. Adding this diffuse illumination, shown as G, to the directed illumination, gives the total illumination, i, shownline 15990Lecture 11: Light Intensity And Illuminationtext - workbenchneeds-verification
Fig. 117room. FIG. 117 TABLE VII.— (Fig. 117.) EQUI-POTENTIAL CURVES.line 16016Lecture 11: Light Intensity And Illuminationtext - workbenchneeds-verification
Fig. 1186 FIG. 118. TABLE VIII.— (Figs. 118 to 121.) HORIZONTAL ILLUMI-line 16235Lecture 11: Light Intensity And Illuminationtext - workbenchneeds-verification
Fig. 119141 FIG. 119. 4.0line 16434Lecture 11: Light Intensity And Illuminationtext - workbenchneeds-verification
Fig. 120i FIG. 120. FIG. 121.line 16479Lecture 11: Light Intensity And Illuminationtext - workbenchneeds-verification
Fig. 121FIG. 120. FIG. 121. LECTURE XII.line 16482Lecture 11: Light Intensity And Illuminationtext - workbenchneeds-verification
Fig. 122M/w///^^^^^ FIG. 122. face of the ground and A a flat circular shade at distance I above the ground, the intensity distribution of the light in plane P is asline 17594Lecture 13: Physiological Problems Of Illuminating Engineeringtext - workbenchneeds-verification
Fig. 123from directed to diffused light. Thus, no sharp dividing line FIG. 123. PHYSIOLOGICAL PROBLEMS. 281line 17626Lecture 13: Physiological Problems Of Illuminating Engineeringtext - workbenchneeds-verification
Fig. 124combining A and B by the parallelogram law. FIG. 124. FIG. 125.line 17831Lecture 13: Physiological Problems Of Illuminating Engineeringtext - workbenchneeds-verification
Fig. 125FIG. 124. FIG. 125. In some respects the action of the two separate flux densitiesline 17834Lecture 13: Physiological Problems Of Illuminating Engineeringtext - workbenchneeds-verification
Fig. 126nator mn. The actual illumination as shown in Fig. 127 gives a FIG. 126. FIG. 127.line 17879Lecture 13: Physiological Problems Of Illuminating Engineeringtext - workbenchneeds-verification
Fig. 127FIG. 126. FIG. 127. black segment of angle <D, while more than half the circumferenceline 17882Lecture 13: Physiological Problems Of Illuminating Engineeringtext - workbenchneeds-verification
Theory and Calculation of Alternating Current Phenomena 91 candidate figure references - 0 promoted crops
FigureOCR/PDF-Text Caption CandidateLocationSectionOpenStatus
Fig. 8mum value is found in the following way : — Fig. 8. Let, in Fig. 6, AOB represent a quadrant of a circle with radius 1.line 1452Chapter 2: Instantaneous Values And Integral Valuestext - workbenchneeds-verification
Fig. 7found in the following way : Fig. 7. Let, in Fig. 7, AOB represent a quadrant of a circleline 1503Chapter 2: Instantaneous Values And Integral Valuestext - workbenchneeds-verification
Fig. 11nates by a vector, which by its length, OC, denotes the in- Fig. 11. tensity, and by its amplitude, AOC, the phase, of the sineline 1892Chapter 4: Graphic Representationtext - workbenchneeds-verification
Fig. 12be sent into a non-inductive circuit at an E.M.F. of E Fig. 12. volts. What will be the E.M.F. required at the generator end of the line ?line 1936Chapter 4: Graphic Representationtext - workbenchneeds-verification
Fig. 13E? 0 Fig. 13. 18. We may, however, introduce the effect of the induc-line 1989Chapter 4: Graphic Representationtext - workbenchneeds-verification
Fig. 14E.V o Fig. 14. of the impressed E.M.F., in the latter case being of opposite phase. According to the nature of the problem, either theline 2025Chapter 4: Graphic Representationtext - workbenchneeds-verification
Fig. 15—X« Fig. 15. 19. Coming back to the equation found for the E.M.F.line 2062Chapter 4: Graphic Representationtext - workbenchneeds-verification
Fig. 18E0 = V(^ cos w + Ir)2 -f- (E sin w + Ix)z. Fig. 18. If, however, the current in the receiving circuit is leading, as -is the case when feeding condensers or syn-line 2112Chapter 4: Graphic Representationtext - workbenchneeds-verification
Fig. 17’E. Fig. 17. a circuit with leading current, as, for instance, a synchro- nous motor circuit under the circumstances stated above.line 2152Chapter 4: Graphic Representationtext - workbenchneeds-verification
Fig. 20same E.M.F. and current ; or conversely, at a given primary Fig. 20. impressed E.M.F., E0, the secondary E.M.F., E^ will be smaller with an inductive, and larger with a condenserline 2295Chapter 4: Graphic Representationtext - workbenchneeds-verification
Fig. 21ever, this becomes too complicated, as will be seen by trying Fig. 21. to calculate, from the above transformer diagram, the ratio of transformation. The primary M.M.F. is given by theline 2379Chapter 5: Symbolic Methodtext - workbenchneeds-verification
Fig. 22the graphical representation. Fig. 22. 25. We have seen that the alternating sine wave is represented in intensity, as well as phase, by a vector, Of,line 2395Chapter 5: Symbolic Methodtext - workbenchneeds-verification
Fig. 24riod ; tJiat is, retarding the wave through one-quarter period. Fig. 24. Similarly, —line 2524Chapter 5: Symbolic Methodtext - workbenchneeds-verification
Fig. 28-*’ Fig. 28. 34. Let, for instance, in Fig. 27, an interlinked three- phase system be represented diagrammatically, as consist-line 2816Chapter 6: Topographic Methodtext - workbenchneeds-verification
Fig. 27by one-third of a period. Let the E.M.Fs. in the direction Fig. 27 from the common connection O of the three branch circuitsline 2824Chapter 6: Topographic Methodtext - workbenchneeds-verification
Fig. 29E° Fig. 29. E.M.Fs., these currents are represented in Fig. 29 by theline 2905Chapter 6: Topographic Methodtext - workbenchneeds-verification
Fig. 31•I, Fig. 31. Fig. 32.line 2964Chapter 6: Topographic Methodtext - workbenchneeds-verification
Fig. 32Fig. 31. Fig. 32. As seen, the induced generator E.M.F. and thus theline 2967Chapter 6: Topographic Methodtext - workbenchneeds-verification
Fig. 3490° LAO Fig. 34. Only the circuit characteristics of the first phase are shown as ^ and z’r As seen, passing from the receivingline 3089Chapter 6: Topographic Methodtext - workbenchneeds-verification
Fig. 35RESISTANCE AND LEAKAGE Fig. 35. current alternately rise and fall, while their phase angleline 3102Chapter 6: Topographic Methodtext - workbenchneeds-verification
Fig. 38Er Er0 Fig. 38. and the current is, /=line 3764Chapter 8: Circuits Containing Resistance, Inductance, And Capacitytext - workbenchneeds-verification
Fig. 39E Fig. 39. Z-jx0 r—j(x + x0}‘line 3771Chapter 8: Circuits Containing Resistance, Inductance, And Capacitytext - workbenchneeds-verification
Fig. 40of reactance in series in a non-inductive circuit is, for small Fig. 40. values of reactance, independent of the sign, but propor-line 3869Chapter 8: Circuits Containing Resistance, Inductance, And Capacitytext - workbenchneeds-verification
Fig. 41-t-CONDENSANCE Fig. 41. E0 = 100 volts, and the following conditions of receiver circuit •— z= 1 Qj r = 1>0> x= 0 (Curve j)line 4148Chapter 8: Circuits Containing Resistance, Inductance, And Capacitytext - workbenchneeds-verification
Fig. 42series reactance continues up to x0 = il.6, or, x0 = — %x, Fig. 42. where E = 100 volts again ; and for x0 > 1.6 the voltage drops again.line 4179Chapter 8: Circuits Containing Resistance, Inductance, And Capacitytext - workbenchneeds-verification
Fig. 43\ Fig. 43. Since a synchronous motor in the condition of efficient working acts as a condensance, we get the remarkable resultline 4194Chapter 8: Circuits Containing Resistance, Inductance, And Capacitytext - workbenchneeds-verification
Fig. 44x0 = 3.2 (Curve VI.) Fig. 44. Since z = 1.0, the current, /, in all these diagrams has the same value as E.line 4236Chapter 8: Circuits Containing Resistance, Inductance, And Capacitytext - workbenchneeds-verification
Fig. 49tance factor, *0/r0, of the series impedance. Fig. 49. ”oline 4509Chapter 8: Circuits Containing Resistance, Inductance, And Capacitytext - workbenchneeds-verification
Fig. 50”o Fig. 50. 50. As an example, Fig. 48 shows the E.M.F., E,line 4513Chapter 8: Circuits Containing Resistance, Inductance, And Capacitytext - workbenchneeds-verification
Fig. 51as functions of the reactance, x, of the receiver circuit. Fig. 51. Figs. 49 to 51 give the polar diagram for E0 = 100, x = .95, x = 0, x = - .95, and Z0 = .3 -/ .4.line 4527Chapter 8: Circuits Containing Resistance, Inductance, And Capacitytext - workbenchneeds-verification
Fig. 52tance,— that is, of the power consumed in the receiver Fig. 52. circuit, which in this case approaches the conditions of aline 4550Chapter 8: Circuits Containing Resistance, Inductance, And Capacitytext - workbenchneeds-verification
Fig. 54JO 190 200 OHMS Fig. 54. In Fig. 54 are shown the values of /, 71} 70, 7f, in Curves I., II., III., IV., similarly as in Fig. 50, for E0 = 1000 volts,line 4821Chapter 8: Circuits Containing Resistance, Inductance, And Capacitytext - workbenchneeds-verification
Fig. 55E0, with increasing load. Fig. 55. Let —line 4861Chapter 8: Circuits Containing Resistance, Inductance, And Capacitytext - workbenchneeds-verification
Fig. 81as shown in Fig. 81. Fig. 81. 92. Demagnetizing, or screening effect of eddy currents.line 8748Chapter 11: Foucault Or Eddy Currentstext - workbenchneeds-verification
Fig. 82where / = total current in conductor. Fig. 82. The magnetic reluctance of a tubular zone of unit lengthline 8940Chapter 11: Foucault Or Eddy Currentstext - workbenchneeds-verification
Fig. 86i Fig. 86. DISTRIBUTED CAPACITY. 173line 10694Chapter 13: Distributed Capacity, Inductance, Resistance, And Leakagetext - workbenchneeds-verification
Fig. 88V Fig. 88. 176line 10808Chapter 13: Distributed Capacity, Inductance, Resistance, And Leakagetext - workbenchneeds-verification
Fig. 89\ Fig. 89. DISTRIBUTED CAPACITY.line 10830Chapter 13: Distributed Capacity, Inductance, Resistance, And Leakagetext - workbenchneeds-verification
Fig. 90V Fig. 90. put into the line has been consumed therein, and at this point the two curves for lead and for lag join each other asline 10864Chapter 13: Distributed Capacity, Inductance, Resistance, And Leakagetext - workbenchneeds-verification
Fig. 94transformer is constructed thus : Fig. 94. Let, in Fig. 94, O® = the magnetic flux in intensity andline 11766Chapter 14: The Alternating-Current Transformertext - workbenchneeds-verification
Fig. 102Fig. 101. Transformer Diagram with 80° Lead in Secondary Circuit. Fig. 102. 202line 11946Chapter 14: The Alternating-Current Transformertext - workbenchneeds-verification
Fig. 103the locus gives curves of higher order. Fig. 103. Fig. 105 gives the locus of the various quantities whenline 11969Chapter 14: The Alternating-Current Transformertext - workbenchneeds-verification
Fig. 104from the above by proportionality. Fig. 104. 133. It must be understood, however, that for the pur-line 12000Chapter 14: The Alternating-Current Transformertext - workbenchneeds-verification
Fig. 105°f tne transformer. Fig. 105. The resistance and reactance of the primary and the secondary circuit are represented in the impedance byline 12046Chapter 14: The Alternating-Current Transformertext - workbenchneeds-verification
Fig. 106z Fig. 106. 137. Separating now the internal secondary impedanceline 12301Chapter 14: The Alternating-Current Transformertext - workbenchneeds-verification
Fig. 107Generator I, Transformer I Fig. 107. This is represented diagrammatically in Fig. 107.line 12340Chapter 14: The Alternating-Current Transformertext - workbenchneeds-verification
Fig. 108211 Fig. 108. admittance Y0) the exciting current, the other branches of the impedances ZJ + Z7, ZJ1 + Zn, … 2f + Zx, the latterline 12364Chapter 14: The Alternating-Current Transformertext - workbenchneeds-verification
Fig. 113) Fig. 113. Substituting these values in tne above equation givesline 13635Chapter 15: The General Alternating-Current Transformer Or Frequency Convertertext - workbenchneeds-verification
Fig. 115EOG Fig. 115. 156. Thus far the diagram is essentially the same asline 14010Chapter 16: Induction Motortext - workbenchneeds-verification
Fig. 119ӣ> Fig. 119. Again, a maximum torque point and a maximum outputline 14959Chapter 16: Induction Motortext - workbenchneeds-verification
Fig. 120267 Fig. 120. 268 ALTERNATING-CURRENT PHENOMENA.line 14974Chapter 16: Induction Motortext - workbenchneeds-verification
Fig. 1221000 2000 3COO 4000 fiOOO fiOOO 7000 8000 Fig. 122. Voltampere output,line 15137Chapter 16: Induction Motortext - workbenchneeds-verification
Fig. 126also. Thus, we havet in this case, even on open circuit, no Fig. 126. rotation through a constant magnetic field, but rotation through a pulsating field, which makes the E.M.F. waveline 16409Chapter 17: Alternating-Current Generatortext - workbenchneeds-verification
Fig. 127in diagram in Fig. 127. Since the armature current flows Fig. 127. in opposite direction to the current in the following-fieldline 16452Chapter 17: Alternating-Current Generatortext - workbenchneeds-verification
Fig. 128its maximum while the armature coil still partly faces the Fig. 128. preceding-field pole, as shown in diagram Fig. 128, — it tendsline 16463Chapter 17: Alternating-Current Generatortext - workbenchneeds-verification
Fig. 129range where the alternator regulates approximately as a constant power machine, that is current and E.M.F. vary in inverse proportion, as between 130 and 200 amperes in Fig. 129. The modern alternators are generally more or less ma-line 17542Chapter 17: Alternating-Current Generatortext - workbenchneeds-verification
Fig. 136when operating in series, the coils of the transformer will Fig. 136. be without current. In this case, by interchange of power through the transformers, the series connection will beline 17731Chapter 18: Synchronizing Alternatorstext - workbenchneeds-verification
Fig. 137Fig. 137, let the voltage at the common bus bars be assumed Fig. 137. as zero line, or real axis of coordinates of the complexline 17741Chapter 18: Synchronizing Alternatorstext - workbenchneeds-verification
Fig. 138eral, in one of these diagrams shown in Fig. 138 in drawn Fig. 138. lines, current and E.M.F. are in the same direction, repre- senting mechanical work done by the machine as motor-line 18154Chapter 19: Synchronous Motortext - workbenchneeds-verification
Fig. 139sists of three components ; the E.M.F. OE£ — Ez, consumed Fig. 139. by the impedance of the motor, the E.M.F. consumed by the impedance of the line, and the E.M.F.line 18187Chapter 19: Synchronous Motortext - workbenchneeds-verification
Fig. 140tor diagram in dotted line. Fig. 140. As seen, for small values of E1 the potential drops in the alternator and in the line. For the value of E1 = E0line 18219Chapter 19: Synchronous Motortext - workbenchneeds-verification
Fig. 747these quantities change with a change of the constants. Fig. 747. 201. A. — Constant impressed E.M.F. Ev, constant current strength I = i, variable motor excitation Ev (Fig. 142.)line 18241Chapter 19: Synchronous Motortext - workbenchneeds-verification
Fig. 142etc., the power is / x 02^, I x 03^, etc., increases first, Fig. 142. reaches the maximum at the point 3j, 3, the most extreme point at the right, with the impressed E.M.F. in phase withline 18273Chapter 19: Synchronous Motortext - workbenchneeds-verification
Fig. 143and O as center. Fig. 143. E lies on a straight line e, passing throtigh the origin;line 18345Chapter 19: Synchronous Motortext - workbenchneeds-verification
Fig. 144In the first case, El = EQ (Fig. 127), we see that at Fig. 144. very small current, that is very small OE, the current /line 18368Chapter 19: Synchronous Motortext - workbenchneeds-verification
Fig. 145V Fig. 145. EI = EQ, but has a minimum value corresponding to theline 18400Chapter 19: Synchronous Motortext - workbenchneeds-verification
Fig. 146dicular to clt and then increases again, reaches once more Fig. 146. El = EQ at E?, and then increases beyond E0. The cur-line 18470Chapter 19: Synchronous Motortext - workbenchneeds-verification
Fig. 147204. Fig. 147. D. En = constant ; P = constant.line 18514Chapter 19: Synchronous Motortext - workbenchneeds-verification
Fig. 1497< I < 43 Fig. 149. Iline 18603Chapter 19: Synchronous Motortext - workbenchneeds-verification
Fig. 15120<l<30 Fig. 151. As seen, the permissible value of counter E.M.F. Ev and of current /, becomes narrower with increasing output.line 18691Chapter 19: Synchronous Motortext - workbenchneeds-verification
Fig. 154\ Fig. 154. taneous reversal of current and E.M.F. ; that is, differing by the time of a half period.line 19092Chapter 19: Synchronous Motortext - workbenchneeds-verification
Fig. 155TSOO 8000^ #WU 3000 3uOO Fig. 155. and transposing, the Ouartic Equation of Maximum Dis- placement,line 19229Chapter 19: Synchronous Motortext - workbenchneeds-verification
Fig. 156constantly given by the motor. Fig. 156. 2. The reactance, x, is assumed as constant. While the reactance of the line is practically constant, that of theline 19410Chapter 19: Synchronous Motortext - workbenchneeds-verification
Fig. 157the motor consists of a primary electric circuit, inducing Fig. 157. in the armature the secondary currents, and a primary magnetizing circuit producing the magnetism to act uponline 19509Chapter 20: Commutator Motorstext - workbenchneeds-verification
Fig. 158ance, only in that position where the induced currents give Fig. 158. a rotary effort in the desired direction, while the armature coils are open-circuited in the position where the rotaryline 19536Chapter 20: Commutator Motorstext - workbenchneeds-verification
Fig. 159the direction of the magnetic field, short-circuit either a Fig. 159. part of the armature coils as shown in Fig. 158, or the whole armature by a connection from brush to brush asline 19563Chapter 20: Commutator Motorstext - workbenchneeds-verification
Fig. 160and a secondary circuit closed upon itself and displaced in Fig. 160. space by 45° — in a bipolar motor — from the direction of the magnetic flux, as shown diagrammatically in Fig. 160. *line 19590Chapter 20: Commutator Motorstext - workbenchneeds-verification
Fig. 181vidual branches both systems become unbalanced systems. Fig. 181. Fig. 182.line 23698Chapter 25: General Polyphase Systemstext - workbenchneeds-verification
Fig. 182Fig. 181. Fig. 182. The different branches of a polyphase system may be either independent from each other, that is, without anyline 23701Chapter 25: General Polyphase Systemstext - workbenchneeds-verification
Fig. 183four collector rings, as shown diagrammatically in Fig. 183, Fig. 183. is an interlinked system also. The four-wire quarter-phase system produced by a generator with two independentline 23726Chapter 25: General Polyphase Systemstext - workbenchneeds-verification
Fig. 184r Fig. 184. 262. Thus, polyphase systems can be subdivided into : Symmetrical systems and unsymmetrical systems.line 23742Chapter 25: General Polyphase Systemstext - workbenchneeds-verification
Fig. 198454 ALTERNATING-CURRENT PHENOMENA. Fig. 198. in three-phase systems Y- connected and delta-connectedline 24560Chapter 28: Interlinked Polyphase Systemstext - workbenchneeds-verification
Fig. 799mation between polyphase systems are : Fig. 799. 1. The delta -Y connection of transformers between three-phase systems, shown in Fig. 199. One side of theline 24980Chapter 29: Transformation Of Polyphase Systemstext - workbenchneeds-verification
Fig. 200V Fig. 200. three-phase secondary distributions. The Y connection ofline 24992Chapter 29: Transformation Of Polyphase Systemstext - workbenchneeds-verification
Fig. 201system by the internal impedance of the transformers. Fig. 201. 3. The main and teaser, or T connection of trans- formers between three-phase systems, as shown in Fig. 201.line 25015Chapter 29: Transformation Of Polyphase Systemstext - workbenchneeds-verification
Fig. 202and connected with one of its ends to the center of the Fig. 202. other transformer. From the point £ inside of the teaser transformer, a neutral wire can be brought out in this con-line 25027Chapter 29: Transformation Of Polyphase Systemstext - workbenchneeds-verification
Fig. 203ter-phase side of the transformers contains two equal and Fig. 203. independent (or interlinked) coils, the three-phase side twoline 25051Chapter 29: Transformation Of Polyphase Systemstext - workbenchneeds-verification
Fig. 2059. The double T connection of transformation from Fig. 205. three-phase to six-phase, shown in Fig. 206. Two trans- formers are used with two secondary coils which are T con-line 25088Chapter 29: Transformation Of Polyphase Systemstext - workbenchneeds-verification
Fig. 2082’ v ’ Fig. 208. able to store energy, since the difference of power betweenline 25115Chapter 29: Transformation Of Polyphase Systemstext - workbenchneeds-verification
Fig. 209which is characterized by a constant angle of intersection Fig. 209. Fig. 210.line 26776Chapter 32: Quarter-Phase Systemtext - workbenchneeds-verification
Fig. 210Fig. 209. Fig. 210. with all concentric circles or all radii vectores.” The oscil-line 26779Chapter 32: Quarter-Phase Systemtext - workbenchneeds-verification
Theory and Calculation of Electric Circuits 37 candidate figure references - 0 promoted crops
FigureOCR/PDF-Text Caption CandidateLocationSectionOpenStatus
Fig. 1L Fig. 1. A characteristic of metallic conductoi^ is that the resistanceline 1172Chapter 1: Electric Conduction. Soled And Liquidtext - workbenchneeds-verification
Fig. 2/ Fig. 2. ance over a very wide range of temperature is extremely difficult, and often no more accurate.line 1421Chapter 1: Electric Conduction. Soled And Liquidtext - workbenchneeds-verification
Fig. 4mm Fig. 4. though the temperature coefficient remains negative, like in electrolytic conductors.line 1729Chapter 1: Electric Conduction. Soled And Liquidtext - workbenchneeds-verification
Fig. 5a Fig. 5. often plotted with -\/i as abscissae, to show the ranges in betterline 1860Chapter 1: Electric Conduction. Soled And Liquidtext - workbenchneeds-verification
Fig. 10M Fig. 10. This, however, still further increases the required voltage andline 2593Chapter 1: Electric Conduction. Soled And Liquidtext - workbenchneeds-verification
Fig. 13L Fig. 13. ticity, metallic luster, etc., and electrically it has a relativelyline 3274Chapter 1: Electric Conduction. Soled And Liquidtext - workbenchneeds-verification
Fig. 21at low currents the voltage rises again, due to the arc not filling the entire tube. Such a volt-ampere characteristic is given in Fig. 21. 26. Herefrom then follows, that the voltage gradient in the mercury arc, for a tube diameter of 2 cm., is about ^ volts perline 5200Chapter 2: Electric Conduction. Gas And Vaportext - workbenchneeds-verification
Fig. 31(13) Fig. 31. the maximum possible hysteresis loss.line 7195Chapter 4: Magnetismtext - workbenchneeds-verification
Fig. 32)f Fig. 32. wline 7206Chapter 4: Magnetismtext - workbenchneeds-verification
Fig. 34s Fig. 34. half-scale, as curve 1, and the magnetization curve of magnetite , FeaO^ — which is about the same as the black scale of iron— ic*.line 7575Chapter 4: Magnetismtext - workbenchneeds-verification
Fig. 353 1 Fig. 35. ^ under the assumption that cither material rigidly follows the 1-8 power law up to the highest densities, by the equation,line 7734Chapter 4: Magnetismtext - workbenchneeds-verification
Fig. 45density is uniform for the width lo between the coil surfaces, Fig. 45. and then decreases toward the interior of the coils, over the dis- tance K respectively ^, to zero at the coil centers. All the coilline 11784Chapter 6: Magnetismtext - workbenchneeds-verification
Fig. 53one-half the other. Fig. 53. 61. Distribution of the winding over an arc of the periphery^ o^line 12428Chapter 7: Shaping Of Waves : Generaltext - workbenchneeds-verification
Fig. 64that harmonic n, where n8 = 180**. Fig. 64. Ifline 12455Chapter 7: Shaping Of Waves : Generaltext - workbenchneeds-verification
Fig. 63The magnetic flux wave, B, becomes more and more 9at-topped with increasing saturation, and finally practically rectangular, in Fig. 63. The curves 60 to 63 are drawn with the same maximum valuesline 14546Chapter 8: Shaping Of Waves By Magnetic Saturationtext - workbenchneeds-verification
Fig. 70\\ Fig. 70. The enormous reduction of the voltage peak by an air-gap ofline 16392Chapter 8: Shaping Of Waves By Magnetic Saturationtext - workbenchneeds-verification
Fig. 73rmmM Fig. 73. r eline 17068Chapter 9: Wave Screens. Even Harmonicstext - workbenchneeds-verification
Fig. 74r e Fig. 74. proportional to frequency and voltage, the condenser shimts theline 17074Chapter 9: Wave Screens. Even Harmonicstext - workbenchneeds-verification
Fig. 76Qii Lnf ggi Fig. 76. where / = frequency of the fundamental wave.line 17286Chapter 9: Wave Screens. Even Harmonicstext - workbenchneeds-verification
Fig. 84As the two parallel arcs must have the same voltage, the oper- ating point is the point, a, of the intersection of A and -4’ in Fig. 84. The arcs thus would divide the current, each operating at 3 amp.line 19228Chapter 10: Instability Of Circuits : The Arctext - workbenchneeds-verification
Fig. 85g Fig. 85. itself; ft and c, however, are unstable. Thus, at the latter points,line 19483Chapter 10: Instability Of Circuits : The Arctext - workbenchneeds-verification
Fig. 861 Fig. 86. condition of arcs with resistance in series and in shunt, on constant, voltage supply, etc.line 19525Chapter 10: Instability Of Circuits : The Arctext - workbenchneeds-verification
Fig. 87branch circuit also must be in phase with each other, that is, the Fig. 87. frequency of the oscillation in Fig. 87 is that at which capacity, C, and inductance, L, balance, or is the resonance frequency.line 19695Chapter 10: Instability Of Circuits : The Arctext - workbenchneeds-verification
Fig. 88S~ Fig. 88. the curves of the arc voltage, eo,line 20087Chapter 10: Instability Of Circuits : The Arctext - workbenchneeds-verification
Fig. 89SHUNTING ARC Fig. 89. As long as the current in the circuit, A — whether resistance or arc — is steady, no current passes the condenser circuit, and theline 20211Chapter 10: Instability Of Circuits : The Arctext - workbenchneeds-verification
Fig. 94of effective resistances, 22, as the values of r-., for pulsations between i + bi and i — bi, and such a curve is shown as R in Fig. 94. We may say, that the arc, when shunted by an oscillating circuit, has an effective negative resistance,line 20527Chapter 10: Instability Of Circuits : The Arctext - workbenchneeds-verification
Fig. 6I Fig. 06. first increases, but then decreases again, down to zero, so that the cumulative oscillations produced by this arc are self-limitii^,line 21181Chapter 10: Instability Of Circuits : The Arctext - workbenchneeds-verification
Fig. 107^i-1.9 00 - 60°; ^0=7.6. Fig. 107. and the magnetic distribution in the transformer, during the moments marked as a, 6, c, d, e, /, g, in Fig. 107, is shown inline 22859Chapter 12: Reactance Of Induction Apparatustext - workbenchneeds-verification
Fig. 105and the magnetic distribution in the transformer, during the moments marked as a, 6, c, d, e, /, g, in Fig. 107, is shown in Fig. 105. In Fig. 105a, the primary flux is larger than the secondary, and all leakage fluxes (xo and Xi) come from the primary flux,line 22863Chapter 12: Reactance Of Induction Apparatustext - workbenchneeds-verification
Fig. 109the primary coil equals its resistance drop, eo = roi, then the Fig. 109. voltage across the secondary coil, s, gives the total reactance, x^, for s as primary,line 23225Chapter 12: Reactance Of Induction Apparatustext - workbenchneeds-verification
Fig. 115/ Fig. 115. give the best regulation; series inductive reactance with an in- ductive, and series condensive reactance with leading current inline 24956Chapter 14: Constant-Potential Constant-Current Trans Formationtext - workbenchneeds-verification
Fig. 117O < Fig. 117. and the tangent of the primary phase angleline 25176Chapter 14: Constant-Potential Constant-Current Trans Formationtext - workbenchneeds-verification
Fig. 119square will be more fully discussed. Fig. 119. A. T-Connection or Resonating Circuitline 25319Chapter 14: Constant-Potential Constant-Current Trans Formationtext - workbenchneeds-verification
Fig. 1238INQLE-PHA8E Fig. 123. Different arrangements can also be used of the constant-current control, for instance, the inductive and condensive reactances inline 27188Chapter 14: Constant-Potential Constant-Current Trans Formationtext - workbenchneeds-verification
Fig. 1248INQIC*PHA8E Fig. 124. the losses in these transformers have not been included, sinceline 27254Chapter 14: Constant-Potential Constant-Current Trans Formationtext - workbenchneeds-verification
Fig. 125SINOLE-PHASE Fig. 125. cuits instead of being operated from the three-phase secondaries of the step-down transformers can be operated directly from theline 27328Chapter 14: Constant-Potential Constant-Current Trans Formationtext - workbenchneeds-verification
Fig. 127That is, the regulation is improved, by the line and leakage reactance, from g = 4 per cent, to 5 = 1.5 per cent, as seen in Fig. 127. 163. In paragraph 161 and the preceding, the shunted react- ances, 61 and 62, have been assumed as constant and independentline 29165Chapter 15: Constant-Voltage Series Operationtext - workbenchneeds-verification
Theory and Calculation of Alternating Current Phenomena 32 candidate figure references - 0 promoted crops
FigureOCR/PDF-Text Caption CandidateLocationSectionOpenStatus
Fig. 9in the direction of the vector, giving the positive half-wave, Fig. 9. and once in opposition to the vector, giving the negativeline 2170Chapter 4: Graphic Befrisxintationtext - workbenchneeds-verification
Fig. 10different, they give different polar characteristics. Fig. 10. 15. The sine wave, Fig. 1, is represented in polarline 2178Chapter 4: Graphic Befrisxintationtext - workbenchneeds-verification
Fig. 11nates by a vector, which by its length, OC, denotes tlie in- Fig. 11. tensity, and by its amplitude, AOC, the phase, of the sineline 2266Chapter 4: Graphic Befrisxintationtext - workbenchneeds-verification
Fig. 12— ~^^E. Fig. 12. volts. What will be the E.M.F. required at the generator end of the line ?line 2338Chapter 4: Graphic Befrisxintationtext - workbenchneeds-verification
Fig. 16Eo = V(^ cos a> + Jry + {E^m u> -f Jx)\ Fig. 16. If, however, the current in the receiving circuit isline 2519Chapter 4: Graphic Befrisxintationtext - workbenchneeds-verification
Fig. 77non-inductive load it will be lower than when feeding into Fig. 77. a circuit with leading current, as, for instance, a synchro-line 2560Chapter 4: Graphic Befrisxintationtext - workbenchneeds-verification
Fig. 25reaction in mechanics. Fig. 25. Further, it is obvious that if in the circuit of a gener-line 3244Chapter 6: Topographic Methodtext - workbenchneeds-verification
Fig. 27by one-third of a period. Let the RM.Fs. in the direction Fig. 27. from the common connection O of the three branch circuits to the terminals A^, A^f A^, be represented by E-^^ E^, E^.line 3285Chapter 6: Topographic Methodtext - workbenchneeds-verification
Fig. 33ii Fig. 33. In the same manner, if two branches, E^E^^ and Ei^E^f are loaded, and the third, E^E^, is unloaded, andline 3456Chapter 6: Topographic Methodtext - workbenchneeds-verification
Fig. 35It is obvious now, since the potential of every point of Fig. 35. the circuit is represented by a point in the topographicline 3529Chapter 6: Topographic Methodtext - workbenchneeds-verification
Fig. 38m. fig. 38. and the current is,line 4210Chapter 8: Capacitytext - workbenchneeds-verification
Fig. 43resofiafice. Fig. 43. Since a synchronous motor in the condition of efficient working acts as a condensance, we get the remarkable resultline 4444Chapter 8: Capacitytext - workbenchneeds-verification
Fig. 483— Fig. 48. Thus we have : —line 5243Chapter 8: Capacitytext - workbenchneeds-verification
Fig. 60n\f. 40. Fig. 60. E.line 5305Chapter 8: Capacitytext - workbenchneeds-verification
Fig. 55E^y with increasing load. Fig. 55. Let —line 5907Chapter 8: Capacitytext - workbenchneeds-verification
Fig. 81iron, to give the same loss of energy through eddy currents. Fig. 81. 02. Demagnetizing^ or screening effect of eddy currents.line 10894Chapter 11: Fouoault Or Eddy 0Ubbent8text - workbenchneeds-verification
Fig. 110also. Thus, we have, in this case, even on open circuit, no Fig. 110. rotation through a constant magnetic field, but rotation through a pulsating field, which makes the E.M.F. waveline 17072Chapter 16: Aiitebnatingh-Current Osnebatortext - workbenchneeds-verification
Fig. 112its maximum while the armature coil still partly faces the Fig. 112. preceding-field pole, as shown in diagram Fig. 112, — it tendsline 17126Chapter 16: Aiitebnatingh-Current Osnebatortext - workbenchneeds-verification
Fig. 122eral, in one of these diagrams shown in Fig. 122 in drawn Fig. 122. lines, current and E.M.F. are in the same direction, repre- senting mechanical work done by the machine as motor.line 19447Chapter 16: Iltext - workbenchneeds-verification
Fig. 124tor diagram in dotted line. Fig. 124. As seen, for small values of E^ the potential drops in the alternator and in the line. For the value of E^ = Eqline 19519Chapter 16: Iltext - workbenchneeds-verification
Fig. 125\ X Fig. 125. 180. A. — Constant impressed E.M.F, E^y constant currentline 19555Chapter 16: Iltext - workbenchneeds-verification
Fig. 128In the first case, Ey^ = E^ (Fig. 127), we see that at Fig. 128. very small curren^, that is very small OE, the current /line 19688Chapter 16: Iltext - workbenchneeds-verification
Fig. 129the current can never become zero like in the first case^ Fig. 129. El = E^y but has a minimum value corresponding to theline 19721Chapter 16: Iltext - workbenchneeds-verification
Fig. 130:^ Fig. 130. El = Eq at Ei^y and then increases beyond Eq, The cur-line 19816Chapter 16: Iltext - workbenchneeds-verification
Fig. 131in Chapter IX. Fig. 131. 183. D. E^ =^ constant ; P ^ constant.line 19857Chapter 16: Iltext - workbenchneeds-verification
Fig. 1328/lti.7 Fig. 132. can be transmitted by the same current / with two different induced RM.Fs. E^ of the motor; one, OEi = EEq small,line 19949Chapter 16: Iltext - workbenchneeds-verification
Fig. 133ox Fig. 133. The counter E.M.F. of the motor, Ei, is OEi, equal and parallel EE^y but not shown in the diagrams, to avoidline 20059Chapter 16: Iltext - workbenchneeds-verification
Fig. 136«-^iC- — Fig. 136. Fig. 137.line 20254Chapter 16: Iltext - workbenchneeds-verification
Fig. 137Fig. 136. Fig. 137. we getline 20257Chapter 16: Iltext - workbenchneeds-verification
Fig. 103o E Fig. 103. Iline 25185Chapter 23: Generaii Foiitfhase Ststemstext - workbenchneeds-verification
Fig. 104I Fig. 104. The different branches of a polyphase system may be either independent from each other, that is, without anyline 25191Chapter 23: Generaii Foiitfhase Ststemstext - workbenchneeds-verification
Fig. 165four collector rings, as shown diagrammatically in Fig. 165, Fig. 165. is an interlinked system also. The four-wire quarter-phase system produced by a generator with two independentline 25219Chapter 23: Generaii Foiitfhase Ststemstext - workbenchneeds-verification
Four Lectures on Relativity and Space 19 candidate figure references - 0 promoted crops
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Fig. 2M Fig. 2. 18 RELATIVITY AND SPACEline 1012Lecture 2: Conclusions From The Relativity Theorytext - workbenchneeds-verification
Fig. 4M Fig. 4. 22 RELATIVITY AND SPACEline 1207Lecture 2: Conclusions From The Relativity Theorytext - workbenchneeds-verification
Fig. 5none returned to the radiator. Fig. 5. CONCLUSIONS FROM RELATIVITY THEORY 23line 1253Lecture 2: Conclusions From The Relativity Theorytext - workbenchneeds-verification
Fig. 6•^W///y/y/y/////////////‘//vy/////////’//^/^^////^>>^ Fig. 6. hour, relative to the track B. Let us denote the distance relative to the train — that is, measured in the train^ — ^byline 1380Lecture 2: Conclusions From The Relativity Theorytext - workbenchneeds-verification
Fig. 8and (2), are very similar to those representing a rotation of Fig. 8. the coordinate axes by an angle tan co = v/c. If it were suchline 1695Lecture 2: Conclusions From The Relativity Theorytext - workbenchneeds-verification
Fig. 9r 7’ Fig. 9. P1P3’ is not the time but a combination of time and length. Inversely, to the second observer P1P3’ is the time andline 1729Lecture 2: Conclusions From The Relativity Theorytext - workbenchneeds-verification
Fig. 10R = M. Fig. 10. Let (in Fig. 10) 5 be a body revolving around a point 0. The fundamental law of physics is the law of inertia.line 2580Lecture 3: Gravitation And The Gravitational Fleldtext - workbenchneeds-verification
Fig. 14<^-<-r) B Fig. 14. constant speed in a straight line, but curves backward, just as it did in Fig. 13 on a 10 per cent up grade at constantline 2705Lecture 3: Gravitation And The Gravitational Fleldtext - workbenchneeds-verification
Fig. 157 ’ Fig. 15. standing near the track, shoot a rifle bullet through the car,line 2931Lecture 3: Gravitation And The Gravitational Fleldtext - workbenchneeds-verification
Fig. 16>Vf Fig. 16. leaves the car, at the point B of the track, it is greater and is v^. Then the angle which the bullet makes relativeline 3004Lecture 3: Gravitation And The Gravitational Fleldtext - workbenchneeds-verification
Fig. 17until finally, at the extremely high velocity of light, c = Fig. 17. 186,000 miles per second, the hyperbola (6) becomes almost a straight line. Even if the beam of light comes very closeline 3139Lecture 3: Gravitation And The Gravitational Fleldtext - workbenchneeds-verification
Fig. 20R = j/VK. (15) Fig. 20. E. THE STRAIGHT LINE AND THE ELLIPTIC 2-SPACEline 4631Lecture 4: The Characteristics Of Space A. The Geometry Of The Gravitational Fieldtext - workbenchneeds-verification
Fig. 21line between them, as Li or L2 — shown dotted in Fig. 21 — Fig. 21. is longer. Suppose we have a straight line L in the plane Fig. 21 and a point P outside of L. Any line drawn in theline 4776Lecture 4: The Characteristics Of Space A. The Geometry Of The Gravitational Fieldtext - workbenchneeds-verification
Fig. 25The mathematical n-space merely is the continuous mani- FiG. 25. fold of oo« elements which are given by the n ratios: x : y :line 5036Lecture 4: The Characteristics Of Space A. The Geometry Of The Gravitational Fieldtext - workbenchneeds-verification
Fig. 29however, are no part of projective geometry, as they are Fig. 29. made by its relation to infinity and therefore are metric in character : The hyperbola has two infinitely distant points,line 5667Lecture 4: The Characteristics Of Space A. The Geometry Of The Gravitational Fieldtext - workbenchneeds-verification
Fig. 30with regard to a conic, then the line connecting the points Fig. 30. pi and P2 is the polar of the point of intersection of Pi andline 5703Lecture 4: The Characteristics Of Space A. The Geometry Of The Gravitational Fieldtext - workbenchneeds-verification
Fig. 31of these six lines by e = ah, cd;f = ac, hd; g = ad, he, and Fig. 31. draw the three additional lines ef, eg and fg, we get a total of nine lines and four points on each of these nine lines.line 5727Lecture 4: The Characteristics Of Space A. The Geometry Of The Gravitational Fieldtext - workbenchneeds-verification
Fig. 32tant (that is, very far distant) we thus recognize by the Fig. 32. two lines of sight from our eyes to the object having the same direction.line 6025Lecture 4: The Characteristics Of Space A. The Geometry Of The Gravitational Fieldtext - workbenchneeds-verification
Fig. 33parallels Li and Lo through a point P — that is, two lines Fig. 33. which intersect L at infinity — and these tvv^o parallels Li and L2 make an angle L1PL2 with each other. Thus L]line 6078Lecture 4: The Characteristics Of Space A. The Geometry Of The Gravitational Fieldtext - workbenchneeds-verification
Elementary Lectures on Electric Discharges, Waves and Impulses, and Other Transients 18 candidate figure references - 0 promoted crops
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Fig. 1oo,o o Fig. 1. exist, which are constant, or permanent, as long as the conditionsline 575Lecture 1: Nature And Origin Of Transientstext - workbenchneeds-verification
Fig. 2]C Fig. 2. Commonly, transient and permanent phenomena are super- imposed upon each other. For instance, if in the circuit Fig. 1line 612Lecture 1: Nature And Origin Of Transientstext - workbenchneeds-verification
Fig. 3G O Fig. 3. the stored energy has to be supplied from the source of power; that is, for a short time power, in supplying the stored energy, flows notline 661Lecture 1: Nature And Origin Of Transientstext - workbenchneeds-verification
Fig. 25frequency, and as the result an increase of voltage and a distor- tion of the quadrature phase occurs, as shown in the oscillogram Fig. 25. Various momentary short-circuit phenomena are illustrated by the oscillograms Figs. 26 to 28.line 3288Lecture 4: Single-Energy Transients In Alternating Current Circuitstext - workbenchneeds-verification
Fig. 294 5 Fig. 29. secondsline 3647Lecture 5: Single-Energy Tra.Nsient Of Ironclad Circuittext - workbenchneeds-verification
Fig. 33= 0.000333 sec. = 0.33 millisecond; Fig. 33. hence, substituted in equation (28),line 4340Lecture 6: Double-Energy Transientstext - workbenchneeds-verification
Fig. 34B Fig. 34. However, if (8) are the equations of current and voltage at a point A of a line, shown diagrammatically in Fig. 34, at any otherline 4499Lecture 7: Line Oscillationstext - workbenchneeds-verification
Fig. 37section h consists of 4 quarter- wave units, etc. Fig. 37. Fig. 38.line 4810Lecture 7: Line Oscillationstext - workbenchneeds-verification
Fig. 38Fig. 37. Fig. 38. The same applies to case 1, and it thus follows that the waveline 4813Lecture 7: Line Oscillationstext - workbenchneeds-verification
Fig. 40Line Fig. 40. former, the high-tension switches are opened at the generator end of the transmission line. The energy stored magnetically andline 5407Lecture 8: Traveling Wavestext - workbenchneeds-verification
Fig. 42constant in the direction of propagation, as indicated by A in Fig. 42. Fig. 42. — Energy Transfer by Traveling Wave.line 5483Lecture 8: Traveling Wavestext - workbenchneeds-verification
Fig. 54which it can draw in supplying power. In permanent condition the line could not add to the power, but must consume, that is, the permanent power-transmission diagram must always be like Fig. 54. Not so, as seen, with the transient of the stationary oscillation. Assume, for instance, that we reduce the power dissipation inline 6338Lecture 9: Oscillations Of The Compound Circuittext - workbenchneeds-verification
Fig. 55u Fig. 55. U„= 533line 6432Lecture 9: Oscillations Of The Compound Circuittext - workbenchneeds-verification
Fig. 56Line Fig. 56. The diagram of the power of the two waves of opposite direc-line 6518Lecture 9: Oscillations Of The Compound Circuittext - workbenchneeds-verification
Fig. 660 Fig. 66. 126 ELECTRICAL DISCHARGES, WAVES AND IMPULSESline 7087Lecture 10: Continual And Cumulative Oscillationstext - workbenchneeds-verification
Fig. 8tance, the lines of magnetic force are concentric circles, shown by drawn lines in Fig. 8, page 10, and the lines of dielectric force are straight lines radiating from the conductor, shown dotted in Fig. 8. Due to the return conductor, in a two-wire circuit, the lines of magnetic and dielectric force are crowded together between theline 7189Lecture 10: Continual And Cumulative Oscillationstext - workbenchneeds-verification
Fig. 74Bh = D — -^Goscf) — -cos t/^, Fig. 74. (42)line 7923Lecture 10: Continual And Cumulative Oscillationstext - workbenchneeds-verification
Fig. 76o O Fig. 76. ^1 t2 H .line 8449Lecture 10: Continual And Cumulative Oscillationstext - workbenchneeds-verification
Elementary Lectures on Electric Discharges, Waves and Impulses, and Other Transients 16 candidate figure references - 0 promoted crops
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Fig. 1G, the line A, and the load L, a current i flows, and voltages e Fig. 1. exist, which are constant, or permanent, as long as the conditions of the circuit remain the same. If we connect in some moreline 472Lecture 1: Nature And Origin Of Transientstext - workbenchneeds-verification
Fig. 3permanent condition corresponding to the closed switch can occur, Fig. 3. the stored energy has to be supplied from the source of power; that is, for a short time power, in supplying the stored energy, flows notline 549Lecture 1: Nature And Origin Of Transientstext - workbenchneeds-verification
Fig. 6changes between potential gravitational and kinetic mechanical Fig. 6. Double-energy Transientline 829Lecture 1: Nature And Origin Of Transientstext - workbenchneeds-verification
Fig. 25frequency, and as the result an increase of voltage and a distor- tion of the quadrature phase occurs, as shown in the oscillogram Fig. 25. Various momentary short-circuit phenomena are illustrated by the oscillograms Figs. 26 to 28.line 2904Lecture 4: Single-Energy Transients In Alternating Current Circuitstext - workbenchneeds-verification
Fig. 292 3 4 5 Fig. 29. 6 secondsline 3221Lecture 5: Single-Energy Transient Of Ironclad Circuittext - workbenchneeds-verification
Fig. 33\ Fig. 33. hence, substituted in equation (28),line 3929Lecture 6: Double-Energy Transientstext - workbenchneeds-verification
Fig. 34A B Fig. 34. However, if (8) are the equations of current and voltage at a point A of a line, shown diagrammatically in Fig. 34, at any otherline 4048Lecture 7: Line Oscillationstext - workbenchneeds-verification
Fig. 37section /i consists of 4 quarter- wave units, etc. Fig. 37. Fig. 38.line 4331Lecture 7: Line Oscillationstext - workbenchneeds-verification
Fig. 38Fig. 37. Fig. 38. The same applies to case 1, and it thus follows that the waveline 4334Lecture 7: Line Oscillationstext - workbenchneeds-verification
Fig. 40Line Fig. 40. former, the high-tension switches are opened at the generator end of the transmission line. The energy stored magnetically andline 4863Lecture 8: Traveling Wavestext - workbenchneeds-verification
Fig. 42constant in the direction of propagation, as indicated by A in Fig. 42. Bline 4936Lecture 8: Traveling Wavestext - workbenchneeds-verification
Fig. 54which it can draw in supplying power. In permanent condition the line could not add to the power, but must consume, that is, the permanent power-transmission diagram must always be like Fig. 54. Not so, as seen, with the transient of the stationary oscillation. Assume, for instance, that we reduce the power dissipation inline 5739Lecture 9: Oscillations Of The Compound Circuittext - workbenchneeds-verification
Fig. 56Line Fig. 56. The diagram of the power of the two waves of opposite direc- tions, and of the resultant power, is shown in Fig. 57, assumingline 5842Lecture 9: Oscillations Of The Compound Circuittext - workbenchneeds-verification
Fig. 8tance, the lines of magnetic force are concentric circles, shown by drawn lines in Fig. 8, page 10, and the lines of dielectric force are straight lines radiating from the conductor, shown dotted in Fig. 8. Due to the return conductor, in a two-wire circuit, the lines of magnetic and dielectric force are crowded together between theline 6123Lecture 10: Inductance And Capacity Of Round Parallel Conductorstext - workbenchneeds-verification
Fig. 66approximately Fig. 66. Aa = D -f- £ cos 0 + - cosline 6823Lecture 10: Inductance And Capacity Of Round Parallel Conductorstext - workbenchneeds-verification
Fig. 68o Fig. 68. 1\ 12 ^3line 7245Lecture 10: Inductance And Capacity Of Round Parallel Conductorstext - workbenchneeds-verification
General Lectures on Electrical Engineering 14 candidate figure references - 0 promoted crops
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Fig. 18c/ Fig. 18. In Fig. i8 letline 2725Lecture 5: Long Distance Transmissiontext - workbenchneeds-verification
Fig. 23saturation. Fig. 23. In a transformer, e. m. f. and exciting current thereforeline 3268Lecture 6: Higher Harmonics Of The Generator Wavetext - workbenchneeds-verification
Fig. 24ment is now most commonly used. Fig. 24 For direct current distribution in larger cities, such generating stations have practically disappeared, and have beenline 4052Lecture 8: Generationtext - workbenchneeds-verification
Fig. 27^ Fig. 27 142 - GENERAL LECTURESline 5129Lecture 11: Lightning Protectiontext - workbenchneeds-verification
Fig. 28over a path of zero resistance, Z. On lower voltage, commonly only two resistances are used, one high and one moderately low, as shown by the diagram of a 2000 volt multi-gap arrester. Fig. 28. The resistance of the discharge path of the present multi- gap arrester therefore is approximately inversely proportionalline 5162Lecture 11: Lightning Protectiontext - workbenchneeds-verification
Fig. 30^ Fig. 30. 2. Acceleration and retardation at two miles per hour per second. Constant speed running between. Fig. 30. Comparedline 5689Lecture 12: Electric Railwaytext - workbenchneeds-verification
Fig. 31_ Fig. 31. gram i is shown in the same figure 31, for comparison. As seen, with the lower rate of acceleration, the maximum speedline 5852Lecture 12: Electric Railwaytext - workbenchneeds-verification
Fig. 32^ g. Fig. 32. mum speed and the lost speed are still greater, that is, the efficiency of the run still lower, and at least 145 secondsline 5908Lecture 12: Electric Railwaytext - workbenchneeds-verification
Fig. 341 Fig. 34. with the speed time curves, is much less, and the power con- sumption therefore is less ; that is, the total efficiency is higher.line 6448Lecture 12: Electric Railwaytext - workbenchneeds-verification
Fig. 35B Fig. 35. ELECTRIC RAILWAYline 6649Lecture 12: Electric Railwaytext - workbenchneeds-verification
Fig. 36_ Fig. 36. be impaired again by carrying this too far. Usually the rheostat is all cut out and the acceleration continues on theline 6859Lecture 12: Electric Railwaytext - workbenchneeds-verification
Fig. 41^_, Fig. 41. MOTOK CHARACTERISTICS 173line 8627Lecture 13: Electric Railway: Motor Characteristicstext - workbenchneeds-verification
Fig. 47^ Fig. 47. seen, below 3.35 amperes, the total required voltage stillline 10298Lecture 17: Arc Lightingtext - workbenchneeds-verification
Fig. 4848. The primary coil P and the secondary coil S are movable Fig. 48. with regard to each other (which of the two coils is movable,line 10437Lecture 17: Arc Lightingtext - workbenchneeds-verification
Theory and Calculation of Electric Apparatus 13 candidate figure references - 0 promoted crops
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Fig. 22nes, the ) parent Fig. 22. INDUCTION MOTOR 67line 6685Chapter 4: Induction Motor With Secondary Excitationtext - workbenchneeds-verification
Fig. 58which represents the current distribution per phase through the air gap of the induction machine, shown by the diagrams F of Fig. 58. The corresponding flux distribution, $, in Fig. 58, expressed by a trignometric series:line 13533Chapter 7: Higher Harmonics In Induction Motorstext - workbenchneeds-verification
Fig. 68In Fig. 68 the drawn tinea correspond to non-inductive bftd The regulation for 45° lagging load is shown by dotted lines in Fig. 68. e’o shows the quadrature component of the monocyclic voltage. e ii, at non-inductive load. That is, the component of e«, which isline 17658Chapter 14: Phase Conversion And Single-Phase Generationtext - workbenchneeds-verification
Fig. 128circuitcd turn, S, as shown in Fig. 128, This gives a periodic variation of the effective reluctance, from ft minimum, shown in Fig. 128, to a maximum in the position shown in dotted lines in Fig. 128. This latter structure is the so-called “synchronous-induction motor,” Chapter VIII, which here appears as a special form ofline 19586Chapter 16: Reaction Machinestext - workbenchneeds-verification
Fig. 151P&D Fig. 151. 180. As example are shown, in Fig. 151, with the speed as abscissae, the curves of a single-phase induction motor, havingline 23006Chapter 19: Alternating- Current Motors In Generaltext - workbenchneeds-verification
Fig. 153are connected in series to the stator circuits, entirely different Fig. 153. characteristics result, and the motor no more tends to synchronize nor approaches a definite speed at no-load, as a shunt motor, butline 23598Chapter 19: Alternating- Current Motors In Generaltext - workbenchneeds-verification
Fig. 154.8 1.0 1.2 1.4 Fig. 154. 1.6line 23838Chapter 19: Alternating- Current Motors In Generaltext - workbenchneeds-verification
Fig. 166is less than 90” liehind the primary current, more than 90° ahead of the secondary current, the more so the higher is the inductivity of the secondary circuit, as shown by the transformer diagram, Fig. 166. Herefrom it follows that:line 24697Chapter 20: Single-Phase Commutator Motorstext - workbenchneeds-verification
Fig. 186c = c2#2; co#> + #1 = 0; lo = co/i; It = 0. Fig. 186. 7. Series repulsion motor with secondary excitation :line 26791Chapter 20: Single-Phase Commutator Motorstext - workbenchneeds-verification
Fig. 187/m Fig. 187. 10. Rotor-excited series motor with conductive compensation :line 26816Chapter 20: Single-Phase Commutator Motorstext - workbenchneeds-verification
Fig. 188brush short-circuit c* = 0.04; that is, the same constants as used in the repulsion motor, Fig. 188. Curves are plotted for the voltage ratios; t = 0: inductively compensated series motor, Fig. 189.line 29224Chapter 20: Single-Phase Commutator Motorstext - workbenchneeds-verification
Fig. 192t = 0.2: series repulsion motor, high-speed, Fig. 190. ( = 0.5: series repulsion motor, medium-speed, Fig. 191. ( = 1.0: repulsion motor with secondary excitation, low-speed, Fig. 192. eline 29231Chapter 20: Single-Phase Commutator Motorstext - workbenchneeds-verification
Fig. 227262. The unipolar machine may be used :i^ motor as well as generator, and has found some application as motor meter. The general principle of a unipolar meter may be illustrated by Fig. 227. The meter shaft, A , with counter, F, is pivoted at P, anil carries the brake disk and conductor, a copper or aluminum disk. D, be-line 32127Chapter 22: Unipolar Machinestext - workbenchneeds-verification
Theoretical Elements of Electrical Engineering 10 candidate figure references - 0 promoted crops
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Fig. 11e\ = — r/0 sin 0, opposite in phase to the current, shown as e\ in dotted line in Fig. 11. The counter e.m.f. of resistance and the e.m.f. consumed by resistance have the same relation to each other as the counterline 2374Theory Section 7: Inductance in Alternating-current Circuitstext - workbenchneeds-verification
Fig. 16of the current by angle EOI = 0 would come into the position OE, Fig. 16. This vector diagram then shows graphically, by the projections of the vectors on the horizontal, the instantaneous values of theline 2924Theory Section 9: Vector Diagramstext - workbenchneeds-verification
Fig. 31Taking i from Fig. 31 and substituting, gives (a) the values of e0 for e = 2000, which are recorded in the table, and plotted in Fig. 31. JTPUTline 4090Theory Section 12: Impedance of Transmission Linestext - workbenchneeds-verification
Fig. 45and dielectric fields of the space surrounding two conductors which are; carrying energy. FIG. 45. FIELDS OF FORCEline 7819Theory Section 19: Fields of Forcetext - workbenchneeds-verification
Fig. 1101231567 FIG. 110. 9 10 11 12 13 14 .15 16 17 18 19 20 21line 12379Apparatus Subsection 70: Direct-current Commutating Machines: C. Commutating Machinestext - workbenchneeds-verification
Fig. 12110 60 FIG. 121 100 120 _110 160 ISOline 12947Apparatus Subsection 77: Direct-current Commutating Machines: C. Commutating Machinestext - workbenchneeds-verification
Fig. 127alternating current in the armature section between a\ and a2, will reach a maximum when this section is midway between the brushes BI and Bz, as shown in Fig. 127. The direct current in every armature coil reverses at the mo-line 13908Apparatus Section 4: Synchronous Converters: Armature Current and Heatingtext - workbenchneeds-verification
Fig. 154I. Low core-loss type, Fig. 154 II. Low t*r loss type, Fig. 155line 17028Apparatus Section 1: Alternating-current Transformer: Low Core-loss Type,text - workbenchneeds-verification
Fig. 155Fig. 154 II. Low t*r loss type, Fig. 155 Exciting currentline 17031Apparatus Section 2: Alternating-current Transformer: Low T*r Loss Type,text - workbenchneeds-verification
Fig. 161the coils, it follows that in Fig. 162 the leakage flux interlinked with each turn of each winding, and thus the reactance of the transformer, is materially less than one-quarter of what it is in Fig. 161. The regulation of the transformer at anti-inductive load, that is, for leading secondary current, obviously is given by the sameline 18391Apparatus Section 4: Alternating-current Transformer: Regulationtext - workbenchneeds-verification
Engineering Mathematics: A Series of Lectures Delivered at Union College 9 candidate figure references - 0 promoted crops
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Fig. 5■e- FiG. 5. tance in the direction rotated 90 deg. from +2, or in quadratureline 1635Chapter 1: The General Numbertext - workbenchneeds-verification
Fig. 6+3 Fig. 6. For instance, in problems dealing with plain geometry, as inline 1689Chapter 1: The General Numbertext - workbenchneeds-verification
Fig. 10There are therefore n different valuesof av^ + 1, which lie equidistant on a circle with radius 1, as shown for n = 9 in Fig. 10. 14. In the operation of addition, a + 6 = c, the problem is, a and 6 being given, to find c.line 1872Chapter 1: The General Numbertext - workbenchneeds-verification
Fig. 20d) — I — 1 0 (D — I — I — I — I — I — I — I — © — I — • — I O A B C Fig. 20. horses, multiplication has no physical meaning. If they repre- sent feet, the product of multiphcation has a physical meaning,line 2895Chapter 1: The General Numbertext - workbenchneeds-verification
Fig. 46of the exactness of the results resulting from the limited num- FiG. 46. ber of numerical values of i, on which the calculation is based.line 11540Chapter 3: Trigonometric Seriestext - workbenchneeds-verification
Fig. 47able to supply the charging current of the line, due to the Fig. 47. wave shape distortion, more than two generators are required.line 12032Chapter 3: Trigonometric Seriestext - workbenchneeds-verification
Fig. 48purposes, as short-distance distribution. Fig. 48. In Figs. 47 and 48 are plotted the voltage wave and the current wave, from equations (9) and (14) repsectively, andline 12041Chapter 3: Trigonometric Seriestext - workbenchneeds-verification
Fig. 49As seen from Fig. 49, the fundamental wave has practically Fig. 49. vanished, and the voltage wave is the seventh harmonic, modi-line 12109Chapter 3: Trigonometric Seriestext - workbenchneeds-verification
Fig. 57?ro (62) Fig. 57. Substituting (61) into (62) gives,line 13829Chapter 3: Trigonometric Seriestext - workbenchneeds-verification
Theory and Calculation of Transient Electric Phenomena and Oscillations 1 candidate figure references - 6 promoted crops
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Fig. 99given for ^ = 0, where tt = t] for any other point of the line X the wave shape is the same, but all the ordinates reduced by the factor £~115* in the proportion as shown in the dotted curve in Fig. 99. Fig. 101 shows the beginning of the passage of the traveling wave across a point X = 0 of the line, that is, the starting of aline 31048Chapter 4: Traveling Wavestext - workbenchneeds-verification
Investigation of Some Trouble in the Generating System of the Commonwealth Edison Co. 1 candidate figure references - 0 promoted crops
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Fig. 1Appendix Figure 1, candidate reference for synchronous-operation current and voltage curves.line 2560Mathematical Appendix 5: Appendix: Synchronous Operationtext - workbenchpdf-text-extracted-needs-scan-verification

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