why control circuit voltage always chooses to be 110v and 220v? and in where it

why control circuit voltage always chooses to be 110v and
220v? and in where it is 110v and 220v? and in where it AC
and DC?

Question Posted / debasis mondal

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why control circuit voltage always chooses to be 110v and 220v? and in where it is 110v and 220v? a..

Answer / m.kumaran

the control voltages are 110V and 220V.because the form factor is 1.11 and it is derived from RMS value of induced voltage and average value of induced voltage,so we need RMS value=form factor * average value.

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why control circuit voltage always chooses to be 110v and 220v? and in where it is 110v and 220v? a..

Answer / nagesh.patwari

Agreed with above answer additional missing information is control circuit vtg is DC fed from battery bank provided in the substation

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