Apparatus Section 7: Synchronous Converters: Variable Ratio Converters ("split Pole" Converters)
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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-86 |
| Location | lines 15586-15734 |
| Status | candidate |
| Word Count | 1144 |
| Equation Candidates In Section | 0 |
| Figure Candidates In Section | 0 |
| Quote Candidates In Section | 0 |
Opening Source Excerpt
Section titled “Opening Source Excerpt”VII. Variable Ratio Converters ("Split Pole" Converters) 98. With a sine wave of alternating voltage, and the com- mutator brushes set at the magnetic neutral, that is, at right angles to the resultant magnetic flux, the direct voltage of a SYNCHRONOUS CONVERTERS 253 converter is constant at constant impressed alternating voltage. It equals the maximum value of the alternating voltage between two diametrically opposite points of the commutator, or "dia- metrical voltage," and the diametrical voltage is twice the voltage between alternating lead and neutral, or star or Y voltage of the polyphase system. A change of the direct voltage, at constant impressed alter- nating voltage, can be produced — Either by changing the position angle between the commu- tator brushes and the resultant magnetic flux, so that the direct voltage between the brushes isSource-Located Theme Snippets
Section titled “Source-Located Theme Snippets”Field language
Section titled “Field language”... ned in the so-called " Regulating Pole Converter" or "Split Pole Converter," which is used to supply, from constant alternating voltage supply, direct voltage varying sometimes over a range of ± 20 per cent. In this type of converter, the field pole is divided into sections, usually two, a smaller one, the regulating pole, and a larger one, the main pole. By varying the excitation of the regulating pole from maximum in one direction, to maximum in the opposite direction, the dir ...Magnetism
Section titled “Magnetism”VII. Variable Ratio Converters ("Split Pole" Converters) 98. With a sine wave of alternating voltage, and the com- mutator brushes set at the magnetic neutral, that is, at right angles to the resultant magnetic flux, the direct voltage of a SYNCHRONOUS CONVERTERS 253 converter is constant at constant impressed alternating voltage. It equals the maximum value of the alternating volta ...Waves / transmission lines
Section titled “Waves / transmission lines”VII. Variable Ratio Converters ("Split Pole" Converters) 98. With a sine wave of alternating voltage, and the com- mutator brushes set at the magnetic neutral, that is, at right angles to the resultant magnetic flux, the direct voltage of a SYNCHRONOUS CONVERTERS 253 converter is constant at constant impressed ...Ether references
Section titled “Ether references”... time, lagging current, it is occasionally preferable to start it from the direct-current side as direct-current motor. This can be done when connected to storage battery or direct-current generator. When feeding into a direct-current system together with other converters or con- verter stations, all but the first converter can be started from the continuous current side by means of rheostats inserted into the armature circuit. To avoid the necessity of synchronizing the converter, by p ...Chapter-Local Concept Hits
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Modern Engineering Reading Prompts
Section titled “Modern Engineering Reading Prompts”- 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.
- Ether references: Verify exact wording before drawing conclusions. Ether language must be separated from later interpretive systems.
- Hysteresis: Compare the passage with modern magnetic loss, B-H loop area, lag, material memory, and empirical loss laws.
Ether-Field Interpretive Boundary
Section titled “Ether-Field Interpretive Boundary”- 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.
- Ether references: If Steinmetz mentions ether, quote only the verified source words first; any broader ether-field synthesis belongs in a labeled interpretive layer.
- Hysteresis: An interpretive reading can treat hysteresis as field lag or memory, but the historical claim must remain Steinmetz’s actual magnetic-loss treatment.
Promotion Checklist
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