A 300 kVA, 6,6 kV, three-phase, star-connected alternator has a percentage impedance of (1,5 + j16,5)%. Calculate for the power factor of 0,8 lagging. a. The ohmic values of the phase resistance and reactance. b. The open-circuit line voltage to which the machine must be excited in order for it to deliver full-load current.

A 300 kVA, 6,6 kV, three-phase, star-connected alternator has a percentage impedance of (1,5 + j16,5)%. Calculate for the power factor of 0,8 lagging. a. The ohmic values of the phase resistance and reactance. b. The open-circuit line voltage to which the machine must be excited in order for it to deliver full-load current.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.4P: A single-phase 100-kVA,2400/240-volt,60-Hz distribution transformer is used as a step-down...

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