Which of the following condition is essential for parallel operation o – McqOptions

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1.	Which of the following condition is essential for parallel operation of two 3-ϕ transformer?
A.	Same voltage ratio and same voltage referring to the primary ratio and same voltage the transformer to be connected in parallel.
B.	The phase displacement between primary and secondary must be the same for all transformers connected in parallel.
C.	The phase sequence must be the same.
D.	All of the above
Answer» E.

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