Why high Voltages come in multiple of 11, like 11 KV, 33KV,
66 KV, 132 KV etc.

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Why high Voltages come in multiple of 11, like 11 KV, 33KV, 66 KV, 132 KV etc...

Answer / anoop pandey ji

HV voltages are in multiple of 11 only because they are
stepped-up by transformers having fixed voltage ratios.
these ratios cant be in decimals and are only in whole
numbers.
hence are in multiples in 11.

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