A 6600 V, 3 phase star connected alternator has a synchronous impedance of (0.4 +j6) per phase. Determine the voltage regulation of the machine when supplying a load of 1000 kW at a normal voltage at pf (i) 0.866 lagging (ii) unity (iii) 0.866 leading

A 6600 V, 3 phase star connected alternator has a synchronous impedance of (0.4 +j6) per phase. Determine the voltage regulation of the machine when supplying a load of 1000 kW at a normal voltage at pf (i) 0.866 lagging (ii) unity (iii) 0.866 leading

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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Question

A 6600 V, 3 phase star connected alternator has a synchronous impedance of (0.4 +j6) per
phase. Determine the voltage regulation of the machine when supplying a load of 1000 kW
at a normal voltage at pf (i) 0.866 lagging (ii) unity (iii) 0.866 leading

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