Apparatus Section 10: Synchronous Machines: Efficiency and Losses
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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-31 |
| Location | lines 9651-9718 |
| Status | candidate |
| Word Count | 342 |
| Equation Candidates In Section | 0 |
| Figure Candidates In Section | 0 |
| Quote Candidates In Section | 0 |
Opening Source Excerpt
Section titled “Opening Source Excerpt”X. Efficiency and Losses 22. Besides the above described curves the efficiency curves are of interest. The efficiency of alternators and synchronous motors is usually so high that a direct determination by measuring the mechanical power and the electric power is less reliable than 10 20 30 4ff 50 60 TO 80 90 100 UO 120 130 140 150 160 170 ISO 150 200 KW. FIG. 70. — Synchronous generator, efficiency and losses. the method of adding the losses, and the latter is therefore com- monly used. The losses consist of the following: the resistance loss in the armature; the resistance loss in the field circuit; the hysteresis and eddy current losses in the magnetic circuit; the friction and windage losses, and eventually load losses, that is, losses due to eddy currents and hysteresis producedSource-Located Theme Snippets
Section titled “Source-Located Theme Snippets”Field language
Section titled “Field language”... KW. FIG. 70. — Synchronous generator, efficiency and losses. the method of adding the losses, and the latter is therefore com- monly used. The losses consist of the following: the resistance loss in the armature; the resistance loss in the field circuit; the hysteresis and eddy current losses in the magnetic circuit; the friction and windage losses, and eventually load losses, that is, losses due to eddy currents and hysteresis produced by the load current in the armature. The res ...Hysteresis
Section titled “Hysteresis”... hronous generator, efficiency and losses. the method of adding the losses, and the latter is therefore com- monly used. The losses consist of the following: the resistance loss in the armature; the resistance loss in the field circuit; the hysteresis and eddy current losses in the magnetic circuit; the friction and windage losses, and eventually load losses, that is, losses due to eddy currents and hysteresis produced by the load current in the armature. The resistance loss in the arm ...Magnetism
Section titled “Magnetism”... he method of adding the losses, and the latter is therefore com- monly used. The losses consist of the following: the resistance loss in the armature; the resistance loss in the field circuit; the hysteresis and eddy current losses in the magnetic circuit; the friction and windage losses, and eventually load losses, that is, losses due to eddy currents and hysteresis produced by the load current in the armature. The resistance loss in the armature is proportional to the square of t ...Chapter-Local Concept Hits
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Chapter-Local Glossary 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.
- Hysteresis: Compare the passage with modern magnetic loss, B-H loop area, lag, material memory, and empirical loss laws.
- Magnetism: Track flux, reluctance, permeability, magnetizing force, and loss language against modern magnetic-circuit terminology.
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.
- Hysteresis: An interpretive reading can treat hysteresis as field lag or memory, but the historical claim must remain Steinmetz’s actual magnetic-loss treatment.
- Magnetism: Centrifugal/divergent magnetic-field readings are interpretive overlays, not automatic historical claims.
Promotion Checklist
Section titled “Promotion Checklist”- Open the full source text and the scan or raw PDF.
- Verify the chapter boundary and surrounding context.
- Promote exact quotations only after checking the source image.
- Move mathematical candidates into canonical equation pages only after formula typography is corrected.
- Move diagram candidates into the diagram archive only after image extraction, crop verification, and manifest creation.
- Keep Steinmetz wording, modern translation, and ether-field interpretation in separate labeled layers.