How we can calculate what type of supply we need for an
example sometimes we take 11 KV and sometime 33KV from EB ?

Answer Posted / ghost

first of all these two numbers you mentioned - which are
11kV and 33kV - are not for supplying, they are for
transmitting the electricity from the power plant to the
utilities (homes) fr the purpose of reducing the losses.

Secondly, we use only either 120V or 240V depending on the
frequency that the country use which is 60 Hz or 50 Hz
respectively.

regards,,,

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