if transmission voltage expressed as the multipple of form
factor(1.11)........11,33,66,220 etc......then why
madakkathara substation(kerala) voltage is 400kv..not 440.....?

Answer Posted / dharmendra goyal

it is true ,but the reason behind this is that there are
more bulky and large rated equipment are required for
transmission, which are costly and not suitable for
economical consideration.

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