Question

what is meant by duty cycle of circuit breaker

Answer 1

The duty cycle of a circuit breaker is the ratio of two time periods. It is defined as the ratio of the time period when the circuit breaker is in ON mode to the total time period. This can be symbolically represented as:

                                                D = Ton/( Ton + Toff)

 

where

D = duty cycle

Ton = time period in ON state

Toff = time period in OFF state