Hysteresis Concordance
Hysteresis
Section titled “Hysteresis”Concordance status: generated from processed OCR/PDF text. Treat these as source-location aids until each passage is checked against the scan.
560 hits
Total text matches across processed Steinmetz sections.
11 sources
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88 sections
Chapters, lectures, sections, or report divisions with matches.
Matched Aliases
Section titled “Matched Aliases”hysteresis, magnetic lag, molecular friction
Source Distribution
Section titled “Source Distribution”| Source | Hits | Sections |
|---|---|---|
| Theory and Calculation of Alternating Current Phenomena | 109 | 11 |
| Theory and Calculation of Alternating Current Phenomena | 107 | 13 |
| Theory and Calculation of Electric Circuits | 100 | 11 |
| Theory and Calculation of Alternating Current Phenomena | 83 | 10 |
| Theory and Calculation of Electric Apparatus | 74 | 14 |
| Theoretical Elements of Electrical Engineering | 38 | 13 |
| Theory and Calculation of Transient Electric Phenomena and Oscillations | 23 | 6 |
| Elementary Lectures on Electric Discharges, Waves and Impulses, and Other Transients | 14 | 3 |
| Elementary Lectures on Electric Discharges, Waves and Impulses, and Other Transients | 5 | 2 |
| Engineering Mathematics: A Series of Lectures Delivered at Union College | 4 | 2 |
| General Lectures on Electrical Engineering | 3 | 3 |
Section Hits
Section titled “Section Hits”Representative Source Snippets
Section titled “Representative Source Snippets”Chapter 4: Magnetism - 53 hit(s)
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CHAPTER IV MAGNETISM Hysteresis 36. Unlike the electric current, which requires power for its maintenance, the maintenance of a magnetic flux does not require energy expenditure (the energy consumed by the magnetizing current in the ohmic resistance of the magnetizing winding being an ...Chapter 12: Effective Resistance And Reactance - 37 hit(s)
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... the electric conductor b}^ a current of uniform density, the effective resistance represents the total expenditure of power. Since in an alternating-current circuit, in general power is expended not only in the conductor, but also outside of it, through hysteresis, secondary currents, etc., the effective resist- ance frequently differs from the true ohmic resistance in such way as to represent a larger expenditure of power. In dealing with alternating-current circuits, it is necessarj-, therefore, to substitute ev ...Chapter 10: Effective Resistance And Reactance - 36 hit(s)
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... electric conductor by a current of uniform density, the effective resistance repre- sents the total expenditure of energy. Since, in an alternating-current circuit in general, energy is expended not only in the conductor, but also outside of it, through hysteresis, secondary currents, etc., the effective resistance frequently differs from the true ohmic resistance in such way as to represent a larger expenditure of energy. In dealing with alternating-current circuits, it is necessary, therefore, to substitute ever ...Chapter 10: Hysteresis Motor - 28 hit(s)
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CHAPTER X HYSTERESIS MOTOR 98. In it revolving magnetic field, a circular iron disk, or iron cylinder of uniform magnetic reluctance in the direction of the revolving field, is set in rotation, even if subdivided so as to preclude the production of eddy currents. Thin rotati ...Chapter 10: F - 26 hit(s)
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... electric conductor by a current of uniform density, the effective resistance repre- sents the total expenditure of energy. Since, in an alternating-current circuit in general, energy is expended not only in the conductor, but also outside of it, through hysteresis, secondary currents, etc., the effective resistance frequently differs from the true ohmic resistance in such way as to represent a larger expenditure of energy. In dealing with alternating-current circuits, it is necessary, therefore, to substitute ever ...Chapter 11: Foucault Or Eddy Currents - 25 hit(s)
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CHAPTER XI. FOUCAULT OR EDDY CURRENTS. 86. While magnetic hysteresis or molecular friction is a magnetic phenomenon, eddy currents are rather an elec- trical phenomenon. When iron passes through a magnetic field, a loss of energy is caused by hysteresis, which loss, however, does not react magnetically upon the field. When ...Chapter 11: Fouoault Or Eddy 0Ubbent8 - 23 hit(s)
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CHAPTER XI. FOUOAULT OR EDDY 0UBBENT8. • 86. While magnetic hysteresis or molecular friction is a magnetic phenomenon, eddy currents are rather an elec- trical phenomenon. When iron passes through a magnetic field, a loss of energy is caused by hysteresis, which loss, however, does not react magnetically upon the field. When ...Chapter 25: Distortion Of Wave-Shape And Its Causes - 19 hit(s)
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... itch arma- ture windings, such pronounced wave shape distortions as shown by the unitooth alternators shown as illustrations, have become infrequent. Pulsation of Reactance 236. The main causes of a pulsation of reactance are mag- netic saturation and hysteresis, and synchronous motion. Since in an iron-clad magnetic circuit the magnetism is not propor- tional to the m.m.f., the wave of magnetism and thus the wave of e.m.f. will differ from the wave of current. As far as this distortion is due to the variation of ...Theory Section 10: Hysteresis and Effective Resistance - 18 hit(s)
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10. HYSTERESIS AND EFFECTIVE RESISTANCE 46. If an alternating current 01 = I, in Fig. 21, exists in a circuit of reactance x = 2 irfL and of negligible resistance, the HYSTERESIS AND EFFECTIVE RESISTANCE 49 magnetic flux produce ...Chapter 16: Induction Motor - 17 hit(s)
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... Let I0 = exciting current, or current passing through the motor, per primary circuit, when doing no work (at synchronism), and K= g -j- j 'b = orimary admittance per circuit = — . We thus have, ge = magnetic energy current, ge* = loss of power oy hysteresis (and eddy currents) per primary coil. Hence = total loss of energy by hysteresis and eddys, as calculated according to Chapter X. be = magnetizing current, and n0be = effective M.M.F. per primary circuit; hence ^n0be = total effective M.M.F. ; z ...Chapter 1: Speed Control Of Induction Motors - 16 hit(s)
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... be permissible only in the end connections, or the squirrel-cage end ring, but then, iron could be used as resistance material, which has a materially higher temperature coefficient, and the required temperature rise thus would probably be no higher. B. Hysteresis Starting Device 4. Instead of increasing the secondary resistance with increas- ing slip, to get high torque at low speeds, the same result can be produced by the use of an effective resistance, such as the effect- ive or equivalent resistance of hystere ...Chapter 37: Quarter-Phase System - 14 hit(s)
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... aginary or general numbers are represented by the points outside of the coordinate axes. INDEX Absolute values of complex quanti- ties, 37 Actual generated e.m.f., alternator, 272 Admittance, 55 of dielectric, 154 due to eddy currents, 137 to hysteresis, 129 Admittivity of dielectric circuit, 160 Air-gap in magnetic circuit, 119, 132 Ambiguity of vectors, 39 Amplitude, 6, 20 Apparent capacity of distorted wave, 386 efficiency of induction motor, 234 impedance of transformer, 201 torque efficiency ...Chapter 12: Magnetic Saturation And Hysteresis In Alternat Ing-Current Circuits - 10 hit(s)
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CHAPTER XII. MAGNETIC SATURATION AND HYSTERESIS IN ALTERNAT- ING-CURRENT CIRCUITS. 99. If an alternating e.m.f. is impressed upon a circuit con- taining resistance and inductance, the current and thereby the magnetic flux produced by the current immediately assume their final or permanent values only ...Lecture 10: Continual And Cumulative Oscillations - 9 hit(s)
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... y, which oscillates during the next wave train, is supplied to the line, this energy must be supplied during the oscillation, that is, there must be such a phase displacement or lag within the oscil- lation, which gives a negative energy cycle, or reversed hysteresis loop. Thus, essential for such a continual oscillation is the 124 ELECTRICAL DISCHARGES, WAVES AND IMPULSES existence of a hysteresis loop, formed by the lag of the effect be- hind the cause. Such a hysteresis loop exists in the transient arc, as illu ...Chapter 21: Dibtobtiox Of Wavs-Shafe And Its Causes - 9 hit(s)
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... + -^ cos (0 - i,) + 51 [f cos {{2 y + 1) hence, the E.M.F. [,,sin((2y + l)^-a,) + .,^,siii((2y+l)^-V)]! §§216,217] DISTORTIOiV OF WAVE-SHAPE. 327 Pulsation of Reactance. 216. The main causes of a pulsation of reactance are : magnetic saturation and hysteresis, and synchronous motion. Since in an ironclad magnetic circuit the magnetism is not proportional to the M.M.F., the wave of magnetism and thus the wave of E.M.F. will differ from the wave of cur- rent. As far as this distortion is due to the variation of ...Chapter 22: Distortion Of Wave-Shape And Its Causes - 9 hit(s)
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... stantaneous magnetic flux is : 00 = $ cos 13 ey cos (2 y ff - cos((2y+l) hence, the E.M.F. 2 ; sm(P — DISTORTION OF WAVE-SHAPE. 391 Pulsation of Reactance. 237. The main causes of a pulsation of reactance are : magnetic saturation and hysteresis, and synchronous motion. Since in an ironclad magnetic circuit the magnetism is not proportional to the M.M.F., the wave of magnetism and thus the wave of E.M.F. will differ from the wave of cur- rent. As far as this distortion is due to the variation of ...Chapter 18: Oscillating Currents - 9 hit(s)
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... ical action in electrolytic con- duction, 6 Chromium, magnetic properties, 83 Circuit with distributed leakage, 330 magnetic, 43 Closed magnetic circuit, wave dis- tortion, 139 C/obalt iron alloy, magnetic, 78 magnetic properties, 80 Coefficient of hysteresis, 61 Coherer action of pyroelectric con- ductor, 19 Compensating voltage balancing un- balanced power, 320 Condenser, electrostatic, 9 power equation, 319 tending to instability, 164. See Capacity, Conductance with oscillating cur- rents, 349 Conduc ...Chapter 14: Dielectric Losses - 8 hit(s)
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CHAPTER XIV DIELECTRIC LOSSES Dielectric Hysteresis 116. Just as magnetic hysteresis and eddy currents give a power component in the inductive reactance, as "effective resistance," so the energy losses in the dielectric lead to a power component in the condensive reactance, which may be repre- sented by ...