Answer / guest

Excuse me if my answer is wrong......

ON LINE TRANSFORMER- Here we can change the tappings even
the transformer is connected in load.

OFF LINE TRANSFORMER- Here cant change the tappings when
the transformer is connected in load.

Answer / sunil ulange

ya definitely above answer is correct..

But they asked question like this instead of ON LOAD TAP
CHANGING TRANSFORMER & OFF LOAD TAP CHANGING TRANSFORMER ..

Answer / upen

Generally 11kv/415v is off load and above it on load this in 11/415v u must disconnect load first

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