Chapter 3: Mechanical Rectification
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Source Metadata
Section titled “Source Metadata”| Field | Value |
|---|---|
| Source | Theory and Calculation of Transient Electric Phenomena and Oscillations |
| Year | 1909 |
| Section ID | theory-calculation-transient-electric-phenomena-oscillations-chapter-39 |
| Location | lines 15963-17754 |
| Status | candidate |
| Word Count | 3024 |
| Equation Candidates In Section | 0 |
| Figure Candidates In Section | 0 |
| Quote Candidates In Section | 0 |
Opening Source Excerpt
Section titled “Opening Source Excerpt”CHAPTER III. MECHANICAL RECTIFICATION. 9. If an alternating-current circuit is connected, by means of a synchronously operated circuit breaker or rectifier, with a second circuit in such a manner, that the connection between the two circuits is reversed at or near the moment when the alternating voltage passes zero, then in the second circuit current and voltage are more or less unidirectional, although they may not be constant, but pulsating. If i = instantaneous value of alternating current, and i0 = instantaneous value of rectified current, then we have, before reversal, i0 = i, and after reversal, i0 = — i\ that is, during the reversal of the circuit one of the currents must reverse. Since, however, due to the self-inductance of the circuits, neither current can reverse instantly, the reversal occurs gradually, so thatSource-Located Theme Snippets
Section titled “Source-Located Theme Snippets”Transients / damping
Section titled “Transients / damping”... ed-current circuits, as on arc lighting machines, or in * If the circuit is reversed at the moment when the alternating current passes zero, due to self-inductance of the rectified circuit its current differs from zero, and an arc still appears at the rectifier. 229 230 TRANSIENT PHENOMENA cases where the voltage of the rectified circuit is only a small part of the total voltage, and thus the current not controlled thereby, as when rectifying for the supply of series fields of alternators. 2. r = r0 = oo , or open circuit rectification. This is fea ...Alternating current
Section titled “Alternating current”CHAPTER III. MECHANICAL RECTIFICATION. 9. If an alternating-current circuit is connected, by means of a synchronously operated circuit breaker or rectifier, with a second circuit in such a manner, that the connection between the two circuits is reversed at or near the moment when the alternating voltage passes zero, then in the second circui ...Impedance / reactance
Section titled “Impedance / reactance”... achine. MECHA NIC A L REG TIFICA TION 231 i. Single-phase constant-current rectification. 10. A sine wave of current, i0 sin 0, derived from an e.m.f. very large compared with the voltage consumed in the recti- fied circuit, feeds, after rectification, a circuit of impedance Z = r — jx. This circuit is permanently shunted by a circuit of resistance rr Rectification takes place over short- circuit from the moment n — 02 to TT + 0jj that is, at n - 02the rectified and the alternating circuit are closed upon themselves at the rectifier, and th ...Waves / transmission lines
Section titled “Waves / transmission lines”... from the one to the next phase. Thus the Thomson-Houston arc machine is a star-connected three- phase constant-current alternator with rectifying commutator. The Brush arc machine is a quarter-phase machine with rectify- ing commutator. In rectification frequently the sine wave term of the current is entirely overshadowed by the transient exponential term, and thus the current in the rectified circuit is essentially of an exponential nature. As examples, three cases will be discussed: 1. Single-phase constant-current rectification; that is, a r ...Chapter-Local Concept Hits
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Chapter-Local Glossary Hits
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Modern Engineering Reading Prompts
Section titled “Modern Engineering Reading Prompts”- Transients / damping: Separate the temporary term from the final steady-state term and compare with differential-equation response language.
- Alternating current: Compare Steinmetz’s AC language with modern sinusoidal steady-state analysis, RMS quantities, phase, and phasor notation.
- Impedance / reactance: Translate historical opposition terms into modern impedance, admittance, conductance, susceptance, and complex-plane notation.
- Waves / transmission lines: Map Steinmetz’s wave and line language onto modern distributed constants, propagation velocity, standing waves, and reflections.
- Field language: Read for whether field language is mechanical, geometrical, causal, descriptive, or simply a convenient engineering model.
Ether-Field Interpretive Boundary
Section titled “Ether-Field Interpretive Boundary”- Transients / damping: Transient collapse, impulse, and surge behavior can be compared with alternative field language, but only as a clearly marked reading.
- Waves / transmission lines: Standing/traveling wave passages may support richer field interpretations; the page keeps those readings separate from verified Steinmetz wording.
- Field language: Field-pressure or field-gradient interpretations can be explored here only after the explicit source passage and modern engineering translation are kept distinct.
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- Verify the chapter boundary and surrounding context.
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