Chapter 24: Conclusion
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Source Metadata
Section titled “Source Metadata”| Field | Value |
|---|---|
| Source | Theory and Calculation of Electric Apparatus |
| Year | 1917 |
| Section ID | theory-calculation-electric-apparatus-chapter-22 |
| Location | lines 32820-33531 |
| Status | candidate |
| Word Count | 2362 |
| Equation Candidates In Section | 0 |
| Figure Candidates In Section | 0 |
| Quote Candidates In Section | 0 |
Opening Source Excerpt
Section titled “Opening Source Excerpt”CHAPTER XXIV CONCLUSION 254. Numerous apparatus, structural features and principles have been invented and more or less developed, but have fOQMJ a limited industrial application only, or arc not used at all, l>e- cause there is no industrial demand for them. Nevertheless B knowledge of these apparatus is of (treat importance to the elec- trical engineer. They may bo considered as filling the storehouse of electrical engineer inn, waiting until they are needed. Wry often, in the development of the industry, a demand arises for certain types of apparatus, which have been known for many years, but not used, because they offered no material advan- tage, unlil with the change of the industrial conditions their use became very advantageous and this led to their extrusive application. Thus for instance the com mutating pole ("interpole") inSource-Located Theme Snippets
Section titled “Source-Located Theme Snippets”Radiation / light
Section titled “Radiation / light”... f concatenation of induction machines with synchronous and commutating machines, etc 256. In general, a new design or new type of machine or apparatus has economically no right of existence, if it. is only jnst aa good as the existing one. A new type, which offers only a slight advantage in efficiency, size, coat of production or operation, etc., over the existing type, is economically preferable only, if it can entirely supersede tfw existing type; but if its advantage is limited to certain applica- tions, very often, even usually, the new type is ...Field language
Section titled “Field language”... omically preferable wherever they can be used, it is ohvious that with the rapid expansion of the industry, new types of apparatus will be developed, introduced and become standard, to meet new conditions, and for this reason, aa Btated above, I knowledge of the entire known field of apparatus is to the engineer. CONCLUSION 475 Most of the less-known and less-used types of apparatus have been discussed in the preceding, and a comprehensive list of them is given in Chapter XXIII, together with their definitions and short characterization. While ...Magnetism
Section titled “Magnetism”... chines, this classification becomes difficult in considering all known apparatus, as many of them fall in two or even all three classes, or are intermediate, or their inclusion in one class depends on the particular definition of this class. Induction machines consist of a magnetic circuit inductively related, that is, interlinked with two sets of electric circuits, which are movable with regards to each other. They thus differ from transformers or in general stationary induction apparatus, in that the electric circuits of the latter are stationary w ...Waves / transmission lines
Section titled “Waves / transmission lines”... 4 477 478 lUfiEX E Eddy current starting device of in- duction motor, 8 in unipolar machine, 456 Eickemeyer high frequency inductor alternator, 280 F Flashing of rectifier, 249 Frequency converter, 176 pulsation, effect in induction motor, 131 Full wave rectifier, 245 G General alternating current motor, 300 Generator regulation affecting induc- tion motor stability, 137 H Half wave rectifier, 245 Harmonic torque of induction motor, 144 Heyland motor, 92 Higher harmonic torques in induc- tion motor, 144 ...Chapter-Local Concept Hits
Section titled “Chapter-Local Concept Hits”| Concept Candidate | Hits In Section | Status |
|---|---|---|
| Frequency | 16 | seeded |
| Ether | 1 | seeded |
| Light | 1 | seeded |
Chapter-Local Glossary Hits
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| ether | 1 | seeded |
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Modern Engineering Reading Prompts
Section titled “Modern Engineering Reading Prompts”- Radiation / light: Compare the chapter’s radiation vocabulary with modern electromagnetic radiation, spectral frequency, wavelength, absorption, and illumination engineering.
- Field language: Read for whether field language is mechanical, geometrical, causal, descriptive, or simply a convenient engineering model.
- Magnetism: Track flux, reluctance, permeability, magnetizing force, and loss language against modern magnetic-circuit terminology.
- Waves / transmission lines: Map Steinmetz’s wave and line language onto modern distributed constants, propagation velocity, standing waves, and reflections.
- Alternating current: Compare Steinmetz’s AC language with modern sinusoidal steady-state analysis, RMS quantities, phase, and phasor 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.
- 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.
- Magnetism: Centrifugal/divergent magnetic-field readings are interpretive overlays, not automatic historical claims.
- Waves / transmission lines: Standing/traveling wave passages may support richer field interpretations; the page keeps those readings separate from verified Steinmetz wording.
Promotion Checklist
Section titled “Promotion Checklist”- Open the full source text and the scan or raw PDF.
- Verify the chapter boundary and surrounding context.
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