Electrical engineering

Lorsqu’un électricien fait face à une crise financière.
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Motor circuit breaker (Q1) is widely used in electrical controls to protect electric motors and ensure circuit safety. It has power contacts that are connected in series with the motor (M1) and the power contactor (K1) to detect the overload current or short circuit. And it has the auxiliary contacts (NO = 13 and 14, NC = 21 and 22) to perform interlocking with the control circuit and fault signaling. Whenever a fault occurs due to overload or short circuit, the motor circuit breaker opens the power contacts to turn off the electric motor, in addition the auxiliary contacts change state, so that the coil power is also removed from the contactor to turn it off and supply the fault signa