For a 400 V, 3 phase alternator gives an open circuit voltage of 380V – McqOptions

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1.	For a 400 V, 3 phase alternator gives an open circuit voltage of 380V and armature current of 38A at a field current of 20A. Then the synchronous reactance of the machine is?
A.	10 ohm
B.	38/√3
C.	19 ohm
D.	1.9 ohm
Answer» B. 38/√3

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