Chapter 11: Phase Control
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Source Metadata
Section titled “Source Metadata”| Field | Value |
|---|---|
| Source | Theory and Calculation of Alternating Current Phenomena |
| Year | 1916 |
| Section ID | theory-calculation-alternating-current-phenomena-chapter-11 |
| Location | lines 9767-10717 |
| Status | candidate |
| Word Count | 3743 |
| Equation Candidates In Section | 0 |
| Figure Candidates In Section | 2 |
| Quote Candidates In Section | 0 |
Opening Source Excerpt
Section titled “Opening Source Excerpt”CHAPTER XI PHASE CONTROL 80. At constant voltage, eo, impressed upon a circuit, as a transmission line, resistance, r, inserted in series with the receiv- ing circuit, causes the voltage, e, at the receiver circuit to decrease with increasing current, /, through the resistance. The decrease of the voltage, e, is greatest if the current, /, is in phase with the voltage, e — less if the current is not in phase. Inductive reactance in series with the receiving circuit, e, at constant impressed e.m.f., eo, causes the voltage, e, to drop less with a unity power-factor current, 7, but far more with a lagging current, and causes the voltage, e, to rise with a leading current. While series resistance always causes a drop of voltage, series inductive reactance, x, may cause a drop ofSource-Located Theme Snippets
Section titled “Source-Located Theme Snippets”Impedance / reactance
Section titled “Impedance / reactance”... eceiv- ing circuit, causes the voltage, e, at the receiver circuit to decrease with increasing current, /, through the resistance. The decrease of the voltage, e, is greatest if the current, /, is in phase with the voltage, e — less if the current is not in phase. Inductive reactance in series with the receiving circuit, e, at constant impressed e.m.f., eo, causes the voltage, e, to drop less with a unity power-factor current, 7, but far more with a lagging current, and causes the voltage, e, to rise with a leading current. While series resistance alwa ...Field language
Section titled “Field language”... ng circuit in which, independent of the load, a lagging or leading component of current can be produced at will. Such is the case in synchronous motors or converters: in a synchronous motor a lagging current can be produced by decreasing, a leading current by increasing, the field excitation. 81. If in a direct-current motor, at constant impressed voltage, the field excitation and therefore the field magnetism is decreased, the motor speed increases, as the armature has to revolve faster to consume the impressed e.m.f., and if the field excitation i ...Alternating current
Section titled “Alternating current”... eiv- ing circuit, causes the voltage, e, at the receiver circuit to decrease with increasing current, /, through the resistance. The decrease of the voltage, e, is greatest if the current, /, is in phase with the voltage, e — less if the current is not in phase. Inductive reactance in series with the receiving circuit, e, at constant impressed e.m.f., eo, causes the voltage, e, to drop less with a unity power-factor current, 7, but far more with a lagging current, and causes the voltage, e, to rise with a leading current. While series resistance a ...Waves / transmission lines
Section titled “Waves / transmission lines”CHAPTER XI PHASE CONTROL 80. At constant voltage, eo, impressed upon a circuit, as a transmission line, resistance, r, inserted in series with the receiv- ing circuit, causes the voltage, e, at the receiver circuit to decrease with increasing current, /, through the resistance. The decrease of the voltage, e, is greatest if the current, /, is in phase with the voltage, e — le ...Chapter-Local Concept Hits
Section titled “Chapter-Local Concept Hits”| Concept Candidate | Hits In Section | Status |
|---|---|---|
| Light | 3 | seeded |
| Ether | 1 | seeded |
| Frequency | 1 | seeded |
Chapter-Local Glossary Hits
Section titled “Chapter-Local Glossary Hits”| Term Candidate | Hits In Section | Status |
|---|---|---|
| ether | 1 | seeded |
Equation Candidates
Section titled “Equation Candidates”| Candidate ID | OCR / PDF-Text Candidate | Source Location |
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| No chapter-local candidates yet | - | - |
Figure Candidates
Section titled “Figure Candidates”| Candidate ID | OCR / PDF-Text Candidate | Source Location |
|---|---|---|
theory-calculation-alternating-current-phenomena-fig-077 | AMPERES LOAD « l Fig. 77. and the leading quadrature component of current required to compensate for the line reactance x at maximum current, im, is | line 10085 |
theory-calculation-alternating-current-phenomena-fig-078 | ::} 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 10552 |
Hidden-Gem Quote Candidates
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| No chapter-local candidates yet | - | - |
Modern Engineering Reading Prompts
Section titled “Modern Engineering Reading Prompts”- Impedance / reactance: Translate historical opposition terms into modern impedance, admittance, conductance, susceptance, and complex-plane notation.
- Field language: Read for whether field language is mechanical, geometrical, causal, descriptive, or simply a convenient engineering model.
- Alternating current: Compare Steinmetz’s AC language with modern sinusoidal steady-state analysis, RMS quantities, phase, and phasor notation.
- Waves / transmission lines: Map Steinmetz’s wave and line language onto modern distributed constants, propagation velocity, standing waves, and reflections.
- Magnetism: Track flux, reluctance, permeability, magnetizing force, and loss language against modern magnetic-circuit terminology.
Ether-Field Interpretive Boundary
Section titled “Ether-Field Interpretive Boundary”- 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.
- Waves / transmission lines: Standing/traveling wave passages may support richer field interpretations; the page keeps those readings separate from verified Steinmetz wording.
- Magnetism: Centrifugal/divergent magnetic-field readings are interpretive overlays, not automatic historical claims.
Promotion Checklist
Section titled “Promotion Checklist”- Open the full source text and the scan or raw PDF.
- Verify the chapter boundary and surrounding context.
- Promote exact quotations only after checking the source image.
- Move mathematical candidates into canonical equation pages only after formula typography is corrected.
- Move diagram candidates into the diagram archive only after image extraction, crop verification, and manifest creation.
- Keep Steinmetz wording, modern translation, and ether-field interpretation in separate labeled layers.