Apparatus Subsection 94: Synchronous Converters: Thbee-wire Converter
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Source Metadata
Section titled “Source Metadata”| Field | Value |
|---|---|
| Source | Theoretical Elements of Electrical Engineering |
| Year | 1915 |
| Section ID | theoretical-elements-electrical-engineering-section-94 |
| Location | lines 16727-16803 |
| Status | candidate |
| Word Count | 397 |
| Equation Candidates In Section | 0 |
| Figure Candidates In Section | 0 |
| Quote Candidates In Section | 0 |
Opening Source Excerpt
Section titled “Opening Source Excerpt”B. THBEE-WIRE CONVERTER 109. In a converter feeding a three-wire direct-current system the neutral can be derived by connection to the transformer neutral. Even in this case, however, frequently a separate auto- transformer is used, connected across a pair of collector rings of the converter, since, as seen above, with the moderate unbalanc- ing usually existing, such a compensator is very small. When connecting the direct-current neutral to the transformer neutral it is necessary to use such a connection that the trans- former can operate as autotransformer, that is, that the direct current in each transformer divides into two branches of equal m.m.f., otherwise the direct-current produces a unidirectional magnetization in the transformer, which superimposed upon the magnetic cycle raises the magnetic induction beyond satura- tion, and thus causes excessive exciting current and heating, exceptSource-Located Theme Snippets
Section titled “Source-Located Theme Snippets”Magnetism
Section titled “Magnetism”... can operate as autotransformer, that is, that the direct current in each transformer divides into two branches of equal m.m.f., otherwise the direct-current produces a unidirectional magnetization in the transformer, which superimposed upon the magnetic cycle raises the magnetic induction beyond satura- tion, and thus causes excessive exciting current and heating, except when very small. SYNCHRONOUS CONVERTERS 275 k *T. \ FIG. 149. — Neutral of Y-connected transformers connected t ...Alternating current
Section titled “Alternating current”B. THBEE-WIRE CONVERTER 109. In a converter feeding a three-wire direct-current system the neutral can be derived by connection to the transformer neutral. Even in this case, however, frequently a separate auto- transformer is used, connected across a pair of collector rings of the converter, since, as seen above, with the moderate unbalanc- ing usually existing, such a compensator is very small. When connecting the direct-current neutral to the transformer neutral it is necessary to ...Chapter-Local Concept Hits
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Modern Engineering Reading Prompts
Section titled “Modern Engineering Reading Prompts”- Magnetism: Track flux, reluctance, permeability, magnetizing force, and loss language against modern magnetic-circuit terminology.
- 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”- Magnetism: Centrifugal/divergent magnetic-field readings are interpretive overlays, not automatic historical claims.
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