A 400hp induction motor and a 400hp synchronous motor both are operating at 90% efficiency. The induction motor power factor is 0.8 lag. The synchronous motor power factor is unity. How many amperes of incandescent lighting may be added to the plant at the same KVA load if the synchronous motor is operated at a leading power factor 0.8? The supply is 600V, 3-phase.

A 400hp induction motor and a 400hp synchronous motor both are operating at 90% efficiency. The induction motor power factor is 0.8 lag. The synchronous motor power factor is unity. How many amperes of incandescent lighting may be added to the plant at the same KVA load if the synchronous motor is operated at a leading power factor 0.8? The supply is 600V, 3-phase.

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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