Switch operating and displaying device for monitoring line breaking of switch control circuit

The utility model discloses a switch operating and displaying device for monitoring line breaking of a switch control circuit, which comprises a knife switch position monitoring circuit, a knife switch closing and opening position monitoring circuit and a control power supply, wherein the control power supply provides power for the knife switch position monitoring circuit and the knife switch closing and opening position monitoring circuit. The switch operating and displaying device further comprises a monitoring circuit, wherein the monitoring circuit is arranged at two sides of the control power supply in parallel. The monitoring circuit comprises a relay, a divider resistor and an indicating circuit. The control power supply converts voltage signals into switching signals through the relay and the divider resistor, and the indicating circuit further converts the switching signals into voltage signals through another power supply and provides the voltage signals for a CPU and an indicating lamp, thereby achieving a purpose of monitoring line breaking of the control circuit of a switch operating circuit in real time. In the knife switch position monitoring circuit, the monitoring circuit used for controlling conversion is arranged, and double-position indication for an isolation switch is realized by using a photoelectric isolation device, a current-limiting resistor and a light emitting diode, thereby achieving a purpose of realizing knife switch double-position monitoring.