Why distribution transformer secondary voltage is 0.433kV
instead of 0.415kV.all other switchgear rating are 415
volt??
Answers were Sorted based on User's Feedback
Answer / eric foo
Why need dc supply for operating electrical ht switchgear?
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / k.prakashchandra
Voltage rating does not matter up to 650 V.433V transformers
are used whenever distribution lines are long ,to maintain
minimum reqd voltage at tail end .
Is This Answer Correct ? | 1 Yes | 2 No |
The distance between distribution transformer and switch
gear is slightly more,in that distance voltage drop is
occured
Some times in switch gear we need a single phase supply,
if it is 433 volt means, the phase voltage is 250 volt,in
case of 415 volt ,the phase voltage is 239 volt.
Is This Answer Correct ? | 1 Yes | 3 No |
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