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why substation ratings are multiple of 11 means 11\33 kv
substation
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Answer Posted / suresh apgenco
For HV lines, insulators used are disc insulators whose each
rating is 11kv. based on the point only we are going to
transmit power in terms of 11kv i.e., 11kv, 22kv,... so on.
hence substation ratings are multiples of 11kv
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