In parallel operation of 1-ϕ transformers, a dead short circuit can h – McqOptions

MCQOPTIONS

1.	In parallel operation of 1-ϕ transformers, a dead short circuit can happen if:
A.	their percentage impedances are not equal
B.	there is a difference in the transformation ratios of the transformers
C.	the power factors of transformer don't match with that of the load
D.	paralleling is done with incorrect polarities
Answer» E.

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