A 5-k va 220-v 60-hz six-pole y-connected synchronous, Ask an Expert

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A 5-k VA, 220-V, 60-Hz, six-pole, Y-connected synchronous generator has a leakage reactance per phase of 0.78 ohms and negligible armature resistance. The armature-reaction EMF for this machine is related to the armature current by

Assume that the generated EMF is related to field current by

A. Compute the field current required to establish rated voltage across the terminals of a unity power factor load that draws rated generator armature current.

B. Determine the field current needed to provide rated terminal voltage to a load that draws 125 percent of rated current at 0.8 PF lagging.

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Electrical & Electronics, Engineering

Category:- Electrical & Electronics
Reference No.:- M92172382

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