While synchronization of three phase alternators by lamps bright and d – McqOptions

MCQOPTIONS

1.	While synchronization of three phase alternators by lamps bright and dark method, if the lamps pair become dark and bright simultaneously, it indicates
A.	Incorrect phase sequence
B.	That the frequencies of alternators are different
C.	That voltage of the alternators are not in phase opposition
D.	All of these
Answer» B. That the frequencies of alternators are different

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