Tesla-Era Overlap Concordance
Tesla-Era Overlap
Section titled “Tesla-Era Overlap”Concordance status: generated from processed OCR/PDF text. Treat these as source-location aids until each passage is checked against the scan.
387 hits
Total text matches across processed Steinmetz sections.
13 sources
Sources containing at least one matched alias.
97 sections
Chapters, lectures, sections, or report divisions with matches.
Matched Aliases
Section titled “Matched Aliases”hertzian, high frequency, high potential, high tension, oscillator, wireless
Source Distribution
Section titled “Source Distribution”| Source | Hits | Sections |
|---|---|---|
| Theory and Calculation of Transient Electric Phenomena and Oscillations | 149 | 31 |
| General Lectures on Electrical Engineering | 42 | 7 |
| Radiation, Light and Illumination | 34 | 5 |
| Theory and Calculation of Electric Apparatus | 34 | 4 |
| Elementary Lectures on Electric Discharges, Waves and Impulses, and Other Transients | 30 | 5 |
| Elementary Lectures on Electric Discharges, Waves and Impulses, and Other Transients | 23 | 5 |
| Theory and Calculation of Alternating Current Phenomena | 21 | 10 |
| Theory and Calculation of Electric Circuits | 14 | 7 |
| Theory and Calculation of Alternating Current Phenomena | 12 | 5 |
| Theoretical Elements of Electrical Engineering | 11 | 8 |
| Theory and Calculation of Alternating Current Phenomena | 8 | 4 |
| Engineering Mathematics: A Series of Lectures Delivered at Union College | 5 | 4 |
| Four Lectures on Relativity and Space | 4 | 2 |
Section Hits
Section titled “Section Hits”Representative Source Snippets
Section titled “Representative Source Snippets”Chapter 17: Inductor Machines - 27 hit(s)
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... etween 4>, and *2 or approximately zero, we would alternate between *i and — *i. On the other hand, the single field-coil construction gives a material advantage in the material economy of the field, and in machines having very many field poles, that is, high-frequency alternators, the economy in the field construction overbalances the lesser economy in the use of the armature, especially as at higli frequencies it is not feasible any more to push the alter- nating flux, $0, up to or near saturation values. Therefore, f ...Lecture 17: Arc Lighting - 20 hit(s)
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... saved in alternating constant potential arc lamps, by using reactance instead of resistance, but the power factor is there- fore greatly lowered ; that is, the constant potential alternating arc lamp rarely has a power factor of over 70%. Where therefore high potential constant current circuits are permissible, as for outdoor or street lighting, arc lamps are usually operated on a constant current circuit, with series connection of from 50 to 100 lamps on one circuit. With the exception of a few of the larger cities, al ...Chapter 9: High-Frequency Conductors - 18 hit(s)
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CHAPTER IX. HIGH-FREQUENCY CONDUCTORS. 80. As the result of the phenomena discussed in the preceding chapters, conductors intended to convey currents of very high frequency, as lightning discharges, high frequency oscillations of transmission lines, the currents used in wireless t ...Chapter 9: Inductive Discharges - 18 hit(s)
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... o (401), is 7 ~ — U(jt, V (404) the current 72, by sub- (405) An inductance discharging into the transmission line thus gives an oscillatory distribution of voltage and current along the line. 68. As example may be considered the three-phase high- potential circuit, comprising a generating system of r = 2 ohms and L = 0.5 henry per phase and connected to a long-distance transmission line of r0= 0.4 ohm, L0 = 0.002 henry, gQ= 0.2 X 10~6 mho, (70= 0.016 X 10~6 farad per mile of conductor or phase, and of 1Q = ...Lecture 3: Physiological Effects Of Radiation - 14 hit(s)
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... TION, LIGHT, AND ILLUMINATION. in visibility to the orange yellow for long distances, and inversely, the orange yellow is superior for short distances. At the limits of visibility the eye is very many times more sensitive to green light and, in general, high-frequency light, than to orange yellow and, in general, low-frequency light. A necessary result of the higher sensitivity of the eye for green light is the preponderance of green in gas and vapor spectra. As no special reason exists why spectrum lines should appea ...Chapter 8: Low Frequency Surges In High Potential Systems - 14 hit(s)
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CHAPTER VIII. LOW FREQUENCY SURGES IN HIGH POTENTIAL SYSTEMS. 64. In electric circuits of considerable capacity, that is, in extended high potential systems, as long distance transmission lines and underground cable systems, occasionally destructive high potential low frequency surges occur; that is, oscil ...Lecture 8: Traveling Waves - 13 hit(s)
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... c- tions of different dissipation constants u. For instance, if in a circuit consisting of an unloaded transformer and a transmission line, as indicated in Fig. 40, at no load on the step-down trans- ^^ Line Transformer Line Fig. 40. former, the high-tension switches are opened at the generator end of the transmission line. The energy stored magnetically and dielectrically in line and transformer then dissipates by a transient, as shown in the oscillogram Fig. 41. This gives the oscillation of a circuit consi ...Lecture 8: Traveling Waves - 13 hit(s)
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... ions of different dissipation constants u. For instance, if a circuit consists of an unloaded transformer and a transmission line, as indicated in Fig. 40, that is, at no load on the step-down trans- ^> Line Transformer Line Fig. 40. former, the high-tension switches are opened at the generator end of the transmission line. The energy stored magnetically and dielectrically in line and transformer then dissipates by a transient, as shown in the oscillogram Fig. 41. This gives the oscillation of a circuit consi ...Lecture 1: Nature And Different Forms Of Radiation - 11 hit(s)
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... adiation increases, 'but at the same time radiations of higher and higher frequencies appear, and ultimately the rods become visible in the dark, giving a dark red light; that is, of all the radiations sent out by the rods, a small part is of sufficiently high frequency to be visible. Still further increasing the tempera- ture, the total radiation increases, but the waves of high frequency in- crease more rapidly than those vof lower frequency ; that is, the average frequency of radiation increases or the average wave ...Chapter 4: Distributed Capacity Of High-Potential Transformers - 11 hit(s)
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CHAPTER IV. DISTRIBUTED CAPACITY OF HIGH-POTENTIAL TRANSFORMERS. 40. In the high-potential coils of transformers designed for very high voltages phenomena resulting from distributed capacity occur. In transformers for very high voltages — 100;000 volts and more, or even considerably less in small tran ...Lecture 5: Long Distance Transmission - 10 hit(s)
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... ductors = 2 e. For instance, wire No. 0000 D = .46" ; corona effects begin at the voltage E = 100,000 [) D^ = 46,000. ' ' For 100,000 volts the smallest diameter for which no corona effects occur is : D= ? =1" 100,000 68 GENERAL LECTURES In high potential transformers in the coils no corona effects may occur, because the diameter of the coil or the thick- ness is large enough, but the leads connecting the coils with each other and with the outside, if not chosen very large in diameter, may give corona effe ...Chapter 8: Velocity Of Propagation Of Electric Field - 10 hit(s)
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... on, or, in other words, the electric field lags the more, the greater the distance from the conductor. Since the velocity of propagation is very high — about 3 X 1010 centimeters per second — the wave of an alternating or oscillating current even of very high frequency is of considerable length ; at 60 cycles the wave length is 0.5 X 109 centimeters, and even at a million cycles the wave length is 30,000 centimeters, or about 1000 feet, that is, very great compared with the distance to which electric fields usually exte ...Lecture 10: Continual And Cumulative Oscillations - 9 hit(s)
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... equal to the energy supply, and the oscillation becomes continual. A continual or cumulative oscillation thus involves an energy and frequency transformation, from the low-frequency or con- tinuous-current energy of the power supply of the system to the high-frequency energy of the oscillation. 119 120 ELECTRICAL DISCHARGES, WAVES AND IMPULSES This energy transformation may be brought about by the transient of energy readjustment, resulting from a change of circuit conditions, producing again a change of circuit c ...Chapter 2: Long-Distance Transmission Line - 8 hit(s)
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... stributed capacity and inductance as so-called "wave transmission" and the phenomena thus essentially differ from those in a short energy transmission line. 4. Therefore in very long circuits, as in lines conveying alter- nating currents of high value at high potential over extremely long distances, by overhead conductors or underground cables, or with very feeble currents at extremely high frequency, such as telephone currents, the consideration of the line resistance, which consumes e.m.fs. in phase with the current, ...Chapter 3: Standing Waves - 8 hit(s)
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... the wave non-oscillatory, and of the frequency /0, which, in an undamped circuit, will correspond to this critical wave length lWo, can best be derived by considering some representative numerical examples. As such may be considered: (1) A high-power high-potential overhead transmission line. (2) A high-potential underground power cable. (3) A submarine telegraph cable. (4) A long-distance overhead telephone circuit. (1) High-power high-potential overhead transmission line. 16. Assume energy to be transmitted ...Chapter 10: Instability Of Circuits : The Arc - 7 hit(s)
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... sually all three may occur, under different circuit conditions. The electric arc is the most frequent and most serious cause of instability of electric circuits, and therefore should first be sus- pected, especially if the instability assumes the form of high- frequency disturbances or abrupt changes of current or voltage, such as is shown for instance in the oscillograms. Figs. 80 and 81. Somewhat similar effects of instability are produced by pyro- electric conductors. Induction motors and synchronous motors may show ...Lecture 7: High Frequency Oscillations And Surges - 6 hit(s)
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SEVENTH LECTURE HIGH FREQUENCY OSCILLATIONS AND SURGES 1"^ N an electric circuit, in addition to the power consump- tion by the resistance of the lines, an energy storage ■^ occurs as electrostatic energy, or electrostatic charge due to the voltage on the line (capacity) ; and as el ...Lecture 6: Luminescence - 6 hit(s)
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... e places where the field intensity is highest, as at the needle points, before the disruptive voltage of the spark gap is reached, and then a partial break down occurs at the points of maximum field intensity, as at the needle points, or at the surface of high potential conductors, etc. A blue glow, then, appears at the needle points followed by violet streamers (in air, the color being the nitrogen spectrum; in other gases other colors appear), and gradually increases in extent with increasing voltage, the so-called " b ...