Impact relay

Impact relay is an integrated circuit and case, which is used as the main component of the centralized signal in the relay protection and control circuit of direct operation. It is often used in the early warning and accident alarm circuits of the central signal system of power plants and substations. From the perspective of the principle of the impact relay, the impact relay can be divided into a resistance-capacitance pulse type and an induction pulse type. Its function is to capture the sudden change of current on the signal circuit, but it does not act on the constant current on the circuit.