Rccb Circuit Breaker Diagram. There are two coils say primary containing line current and secondary containing neutral current which produces equal and opposite fluxes if both currents are equal. Rccb test circuit wp ad camp 2 working principle of.
On the other hand rccb has three major parts 1. Rccb test circuit wp ad camp 2 working principle of. See circuit diagram of test circuit.
It is also a protective device it breaks the circuit when the leakage current occurs.
Injury may still occur in some cases for example if a human falls after receiving a shock or if the person touches both conductors at the same time which an rcd won t. In that a switch is connected between line to earth in series with a resistor. Then rccb trip the circuit. A test switch is used to check the working condition of rccb.
