Chapter 20: Ri
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Source Metadata
Section titled “Source Metadata”| Field | Value |
|---|---|
| Source | Theory and Calculation of Alternating Current Phenomena |
| Year | 1897 |
| Section ID | theory-calculation-alternating-current-phenomena-1897-chapter-22 |
| Location | lines 24560-25119 |
| Status | candidate |
| Word Count | 2224 |
| Equation Candidates In Section | 0 |
| Figure Candidates In Section | 0 |
| Quote Candidates In Section | 0 |
Opening Source Excerpt
Section titled “Opening Source Excerpt”CHAPTER XXri. XFFBCTB OF HIOHXilt BAAHONICS. 223. To elucidate the variation in the shape of alternat- ing waves caused by various harmonics, in Figs. 159 and rig. reo. £jr«t •/ wp/. ho™ 160 are shown the wave-forms produced by the superposi- tion of the triple and the quintuple harmonic upon the fimdamental sine wave. § 223] EFFECTS OF JIIGHER HARMONICS. 335 In Fig. 159 is shown the fundamental sine wave and the complex waves produced by the superposition of a triple harmonic of 30 per cent the amplitude of the fundamental, under the relative phase displacements of 0°, 45°, 90°, 135°, and 180°, represented by the equations : s s s s s s n/3 — .3 s — .3 s — .3 s — .3 « — .3 s n3)3 n (3)3 n(3)3 n(3)3Source-Located Theme Snippets
Section titled “Source-Located Theme Snippets”Waves / transmission lines
Section titled “Waves / transmission lines”CHAPTER XXri. XFFBCTB OF HIOHXilt BAAHONICS. 223. To elucidate the variation in the shape of alternat- ing waves caused by various harmonics, in Figs. 159 and rig. reo. £jr«t •/ wp/. ho™ 160 are shown the wave-forms produced by the superposi- tion of the triple and the quintuple harmonic upon the fimdamental sine wave. § 223] EFFECTS OF JIIGHER HARMONICS. 335 In Fig. 1 ...Magnetism
Section titled “Magnetism”... given effective current, are increased. In consequence hereof alternators and synchronous motors of ironclad unitooth construction — that is, machines giving waves with pronounced higher harmonics — give with the same number of turns on the armature, and the same mag- netic flux per field pole at the same frequency, a higher output than machines built to produce sine waves. 227. This explains an apparent paradox : If in the three-phase star-connected generator with the magnetic field constructed as shown diagrammatically in Fig. 162, the magnetic ...Radiation / light
Section titled “Radiation / light”... ouble peak, with sharp zero : sin /3 - .15 sin (3 p - 180°) - .10 sin 5 p. Sharp peak with sharp zero : sin 13 - .15 sin 3 /3 - .10 sin (5 /S - 180°). 224. Since the distortion of the wave-shape consists in the superposition of higher harmonics, that is, waves of higher frequency, the phenomena taking place in a circuit / 3o8 AL TERNA TIXG-CURREXT PHEXOMEXA. [§ 225 supplied by such a wave will be the combined effect of the different waves. Thus in a non-inductive circuit, the current and the potential difference across the different parts of ...Dielectricity / capacity
Section titled “Dielectricity / capacity”... n the fimdamental sine wave. § 223] EFFECTS OF JIIGHER HARMONICS. 335 In Fig. 159 is shown the fundamental sine wave and the complex waves produced by the superposition of a triple harmonic of 30 per cent the amplitude of the fundamental, under the relative phase displacements of 0°, 45°, 90°, 135°, and 180°, represented by the equations : s s s s s s n/3 — .3 s — .3 s — .3 s — .3 « — .3 s n3)3 n (3)3 n(3)3 n(3)3 n(3^ 45°) 90°) 135°) 180°). As seen, the effect of the triple harmonic is in the first figure to fl ...Chapter-Local Concept Hits
Section titled “Chapter-Local Concept Hits”| Concept Candidate | Hits In Section | Status |
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| Frequency | 18 | seeded |
| Ether | 1 | seeded |
Chapter-Local Glossary Hits
Section titled “Chapter-Local Glossary Hits”| Term Candidate | Hits In Section | Status |
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| ether | 1 | seeded |
Equation Candidates
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Modern Engineering Reading Prompts
Section titled “Modern Engineering Reading Prompts”- 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.
- 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.
- 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”- 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.
- 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.
- 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.
Promotion Checklist
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