A 10 MVA, 11 kV alternator has positive, negative and zero sequence re – McqOptions

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1.	A 10 MVA, 11 kV alternator has positive, negative and zero sequence reactance of 25%, 40%, 10% respectively. The resistance that must be placed in the neutral such that fault current for a single phase to ground fault will not exceed the rated line current in ohms is __________
A.	11.7
B.	12.8
C.	2.66
D.	5.2
Answer» B. 12.8

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