TEXTBOOK OF ELECTRICITY W/MINDTAP >BI<
6th Edition
ISBN: 9781305812505
Author: Herman
Publisher: Cengage Learning
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What should be done to keep the alternator terminal voltage constant at different loads as the alternator is loaded?makes? Please explain
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Chapter 32 Solutions
TEXTBOOK OF ELECTRICITY W/MINDTAP >BI<
Ch. 32 - What conditions must be met before two alternators...Ch. 32 - How can the phase rotation of one alternator be...Ch. 32 - What is the function of the synchronizing lamps?Ch. 32 - What is a synchroscope?Ch. 32 - Assume that Alternator A is supplying power to a...Ch. 32 - What two factors determine the output frequency of...Ch. 32 - At what speed must a six-pole alternator turn to...Ch. 32 - What three factors determine the output voltage of...Ch. 32 - What are sliprings used for on a...Ch. 32 - Prob. 10RQ
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- b) Explain the conditions of parallel connection of alternators and how these conditions are fulfilled.arrow_forwardExplain how two or more alternators can be synchronisedarrow_forwardThe dc armature resistance of delta-connected alternator measured across its two terminal is 0.8 ohm. The effective resistance per phase is?arrow_forward
- We know there are few conditions for alternator synchronization. How many conditions are there? Write all the conditions.arrow_forwardWhy does an alternator's voltage rise when it is loaded down with a leading load?arrow_forwardWhat is short circuit characteristics of (s.c.c) of an alternator Explain? Explain the effect of incraese in field current on the genreated voltage of alternator?arrow_forward
- Alternator A (100 kVA, 3-f, 240 V, 60 Hz, 1800 rpm) is operating in parallel with alternator B (125 kVA, 3-f, 240 V, 60 Hz, 1800 rpm). The load of alternator A is 70 kW at 85% pf leading and the load of alternator B is 85 kW at 75% pf leading. Determine the pf of load.arrow_forwardA single phase, 2000 V alternator has armature resistance and reactance of 0.8 ohms and 4.94 ohms respectively. The voltage regulation of the alternator at 100 A load at 0.8 leading power factor is ??arrow_forwardTwo identical, 3-phase, Y-connected alternators A and B share equally a load of 10MW at 33kV at 0.8pf lagging. The synchronous reactance of each machine is 4 ohms per phase and the armature resistance is negligible. Alternator A has its field excitation adjusted to carry 125A lagging current. What is the current supplied by alternator B?arrow_forward
- How do we increase or decrease the generated voltage output in the operation of a factory finished Alternator?arrow_forwardAn alternator is much less likely to burn out on a sustained short-circuit than a separately excited DC generator. Explain.arrow_forwardWhat is the effect of the resistive load to the terminal voltage of the alternator?arrow_forward
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How does an Alternator Work ?; Author: Lesics;https://www.youtube.com/watch?v=tiKH48EMgKE;License: Standard Youtube License