Chapter 16: Power, And Double-Frequency Quantities In
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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-16 |
| Location | lines 16077-16520 |
| Status | candidate |
| Word Count | 1876 |
| Equation Candidates In Section | 0 |
| Figure Candidates In Section | 0 |
| Quote Candidates In Section | 0 |
Opening Source Excerpt
Section titled “Opening Source Excerpt”CHAPTER XVI POWER, AND DOUBLE-FREQUENCY QUANTITIES IN GENERAL 135. Graphically, alternating currents and voltages are repre- sented by vectors, of which the length represents the intensity, the direction the phase of the alternating wave. The vectors generally issue from the center of coordinates. In the topographical method, however, which is more con- venient for complex networks, as interlinked polyphase circuits, the alternating wave is represented by the straight line between two points, these points representing the absolute values of potential (with regard to any reference point chosen as coordi- nate center), and their connection the difference of potential in phase and intensity. Algebraically these vectors are represented by complex quan- tities. The impedance, admittance, etc., of the circuit is a com- plex quantity also, in symbolic denotation. Thus current, voltage, impedance, and admittance are relatedSource-Located Theme Snippets
Section titled “Source-Located Theme Snippets”Complex quantities
Section titled “Complex quantities”... ny reference point chosen as coordi- nate center), and their connection the difference of potential in phase and intensity. Algebraically these vectors are represented by complex quan- tities. The impedance, admittance, etc., of the circuit is a com- plex quantity also, in symbolic denotation. Thus current, voltage, impedance, and admittance are related by multiplication and division of complex quantities in the same way as current, voltage, resistance, and conductance are related by Ohm's law in direct-current circuits. In direct-current circuits, ...Radiation / light
Section titled “Radiation / light”CHAPTER XVI POWER, AND DOUBLE-FREQUENCY QUANTITIES IN GENERAL 135. Graphically, alternating currents and voltages are repre- sented by vectors, of which the length represents the intensity, the direction the phase of the alternating wave. The vectors generally issue from the center of coordinates. In the topo ...Alternating current
Section titled “Alternating current”CHAPTER XVI POWER, AND DOUBLE-FREQUENCY QUANTITIES IN GENERAL 135. Graphically, alternating currents and voltages are repre- sented by vectors, of which the length represents the intensity, the direction the phase of the alternating wave. The vectors generally issue from the center of coordinates. In the topographical method, however, which is more con- venient for compl ...Magnetism
Section titled “Magnetism”... ay be advisable to bring the com- pensator as near as possible to the circuit to be compensated. + . . . . +Pn, 2+ . . . . +Pn\ . +PJ. DOUBLE-FREQUENCY QUANTITIES 185 140. Like power, torque in alternating apparatus is a double- frequency vector product also, of magnetism and m.m.f. or current, and thus can be treated in the same way. In an induction motor, for instance, the torque is the product of the magnetic flux in one direction into the component of secondary current in phase with the magnetic flux in time, but in quadrature position ...Chapter-Local Concept Hits
Section titled “Chapter-Local Concept Hits”| Concept Candidate | Hits In Section | Status |
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| Frequency | 19 | seeded |
Chapter-Local Glossary Hits
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Modern Engineering Reading Prompts
Section titled “Modern Engineering Reading Prompts”- Complex quantities: Track how Steinmetz preserves geometric rotation and quadrature while translating the same operation into symbolic form.
- Radiation / light: Compare the chapter’s radiation vocabulary with modern electromagnetic radiation, spectral frequency, wavelength, absorption, and illumination engineering.
- Alternating current: Compare Steinmetz’s AC language with modern sinusoidal steady-state analysis, RMS quantities, phase, and phasor notation.
- Magnetism: Track flux, reluctance, permeability, magnetizing force, and loss language against modern magnetic-circuit terminology.
- Impedance / reactance: Translate historical opposition terms into modern impedance, admittance, conductance, susceptance, and complex-plane notation.
Ether-Field Interpretive Boundary
Section titled “Ether-Field Interpretive Boundary”- Radiation / light: Radiation and wave language can invite ether-field comparison, but source wording, modern radiation theory, and speculative synthesis must stay separated.
- Magnetism: Centrifugal/divergent magnetic-field readings are interpretive overlays, not automatic historical claims.
Promotion Checklist
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