Chapter 14: Constant-Potential Constant-Current Trans Formation
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Source Metadata
Section titled “Source Metadata”| Field | Value |
|---|---|
| Source | Theory and Calculation of Electric Circuits |
| Year | 1917 |
| Section ID | theory-calculation-electric-circuits-chapter-14 |
| Location | lines 24023-27995 |
| Status | candidate |
| Word Count | 11556 |
| Equation Candidates In Section | 0 |
| Figure Candidates In Section | 6 |
| Quote Candidates In Section | 0 |
Opening Source Excerpt
Section titled “Opening Source Excerpt”CHAPTER XIV CONSTANT-POTENTIAL CONSTANT-CURRENT TRANS- FORMATION 127. The generation of alternating-current electric power prac- tically always takes place at constant voltage. For some pur- poses, however, as for operating series arc circuits, and to a lim- ited extent also for electric furnaces, a constant, or approximately constant alternating current is required. While constant alter- nating-current arcs have largely come out of use and their place taken by constant direct-current luminous arc circuits, or incan- descent lamps, the constant direct current is usually derived by rectification of constant alternating-current supply circuits. Such constant alternating currents are usually produced from constant- voltage supply circuits by means of constant or variable inductive reactances, and may be produced by the combination of inductive and condensive reactances; and the investigation of different methods of producing constant alternating current from constantSource-Located Theme Snippets
Section titled “Source-Located Theme Snippets”Impedance / reactance
Section titled “Impedance / reactance”... incan- descent lamps, the constant direct current is usually derived by rectification of constant alternating-current supply circuits. Such constant alternating currents are usually produced from constant- voltage supply circuits by means of constant or variable inductive reactances, and may be produced by the combination of inductive and condensive reactances; and the investigation of different methods of producing constant alternating current from constant alternating voltage, or inversely, constitutes a good application of the terms "impedance," adm ...Waves / transmission lines
Section titled “Waves / transmission lines”... age to rise to the maximum value pcjnnitted by the power of the generating source. Hence, whrjrrj the circuit constants, with a constant-voltage supply source, are Huch as U) approach constant-voltage constant-current tran.sfonnation, as in for instance the case in very long transmission line«, or>^;n-<:ircuit- ing may lead to dangeroiLs or even destructive voltage rh¥% 128. With an inductive reactance inserted in series to an alt^^r- 245 246 ELECTRIC CIRCUITS nating-current non-inductive circuit, at constant-supply voltage, the current in this circuit is ...Radiation / light
Section titled “Radiation / light”... current from constant alternating voltage, or inversely, constitutes a good application of the terms "impedance," admittance," etc., and offers a large number of problems or examples for the symbolic method of dealing with alternating-current phenomena. Even outside of arc lighting, such combinations of inductance and capacity which t«nd toward constant-voltage constant-cur- rent transformation are of considerable importance as a poffsiblo source of danger to the system. In a constant-current circuit, the load is taken off by short-circuiting, while ...Dielectricity / capacity
Section titled “Dielectricity / capacity”... inversely, constitutes a good application of the terms "impedance," admittance," etc., and offers a large number of problems or examples for the symbolic method of dealing with alternating-current phenomena. Even outside of arc lighting, such combinations of inductance and capacity which t«nd toward constant-voltage constant-cur- rent transformation are of considerable importance as a poffsiblo source of danger to the system. In a constant-current circuit, the load is taken off by short-circuiting, while opc;n-circuiting causes the voltage to rise to t ...Chapter-Local Concept Hits
Section titled “Chapter-Local Concept Hits”| Concept Candidate | Hits In Section | Status |
|---|---|---|
| Frequency | 19 | seeded |
| Light | 7 | seeded |
| Ether | 3 | seeded |
| Arc lamp | 1 | seeded |
Chapter-Local Glossary Hits
Section titled “Chapter-Local Glossary Hits”| Term Candidate | Hits In Section | Status |
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| ether | 3 | 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-electric-circuits-fig-115 | / Fig. 115. give the best regulation; series inductive reactance with an in- ductive, and series condensive reactance with leading current in | line 24956 |
theory-calculation-electric-circuits-fig-117 | O < Fig. 117. and the tangent of the primary phase angle | line 25176 |
theory-calculation-electric-circuits-fig-119 | square will be more fully discussed. Fig. 119. A. T-Connection or Resonating Circuit | line 25319 |
theory-calculation-electric-circuits-fig-123 | 8INQLE-PHA8E Fig. 123. Different arrangements can also be used of the constant-current control, for instance, the inductive and condensive reactances in | line 27188 |
theory-calculation-electric-circuits-fig-124 | 8INQIC*PHA8E Fig. 124. the losses in these transformers have not been included, since | line 27254 |
theory-calculation-electric-circuits-fig-125 | SINOLE-PHASE Fig. 125. cuits instead of being operated from the three-phase secondaries of the step-down transformers can be operated directly from the | line 27328 |
Hidden-Gem Quote Candidates
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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.
- Waves / transmission lines: Map Steinmetz’s wave and line language onto modern distributed constants, propagation velocity, standing waves, and reflections.
- Radiation / light: Compare the chapter’s radiation vocabulary with modern electromagnetic radiation, spectral frequency, wavelength, absorption, and illumination engineering.
- Dielectricity / capacity: Check whether the passage treats capacity, condensers, displacement, or dielectric stress as field storage rather than only circuit algebra.
- Complex quantities: Track how Steinmetz preserves geometric rotation and quadrature while translating the same operation into symbolic form.
Ether-Field Interpretive Boundary
Section titled “Ether-Field Interpretive Boundary”- Waves / transmission lines: Standing/traveling wave passages may support richer field interpretations; the page keeps those readings separate from verified Steinmetz wording.
- Radiation / light: Radiation and wave language can invite ether-field comparison, but source wording, modern radiation theory, and speculative synthesis must stay separated.
- Dielectricity / capacity: A Wheeler-style reading may emphasize dielectric compression, field stress, and stored potential, but this page treats that as interpretation unless Steinmetz explicitly says it.
Promotion Checklist
Section titled “Promotion Checklist”- Open the full source text and the scan or raw PDF.
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