HOW CIRCUIT BREAKER RATING CALCULATED?WHAT ARE THE
PARAMETERS CONSIDERED?

Answer Posted / jignesh

The C.B. rating r depend on load connected with it.
For three phase supply

I = KW/((ROUT3)*V*COS fi)

From we getting the current for given line then w easily
find C.B. rating with this current.

Is This Answer Correct ?    14 Yes 22 No



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