A 4-pole, 50-Hz, star-connected alternator has 15 slots per pole and each slot has 10 conductors. All the conductors of each phase are connected in series. The winding factor being 0.95. When running on no-load for a certain flux per pole, the terminal emf was 1839 volts. If the windings are lap-connected as in a DC machine, what would be the (a) the flux per pole (b) the EMF between the brushes for the same speed and the same flux/pole. Assume sinusoidal distribution of the flux.

A 4-pole, 50-Hz, star-connected alternator has 15 slots per pole and each slot has 10 conductors. All the conductors of each phase are connected in series. The winding factor being 0.95. When running on no-load for a certain flux per pole, the terminal emf was 1839 volts. If the windings are lap-connected as in a DC machine, what would be the (a) the flux per pole (b) the EMF between the brushes for the same speed and the same flux/pole. Assume sinusoidal distribution of the flux.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter31: Three-phase Alternators

Section: Chapter Questions

Problem 1RQ: What conditions must be met before two alternators can be paralleled together?

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