Determine the saturated reactance in per unit

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Reference no: EM13295888

The following readings are taken from the result of anopen-end and a short circuit test on a 9375-kVA three-phaseY-connected 13,800-V (line to line) two pole 60 Hz turbinegenerator driven at synchronous speed:
Field currentA 169 192
Armeture current, short-curcuit test,A 392 446
Line Voltage, open-circuitcharacteristic,V 13,000 13,800
Line voltage, air gap line,V 15,400 17,500
The armature resistance is 0.064 Ω /phase. The armeture leakage reactance is 0.10 per unit on the generator rating as abase. Find(a) the unsaturated value of the synchronous reactance inohms per phase and per unit, (b) the short-circuit ratio, and (c)the saturated reactance in per unit and ohms per phase.

Reference no: EM13295888

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