On-line monitoring device and evaluation method for electrical life of pole-mounted circuit breaker

The invention discloses a pole-mounted circuit breaker electrical life on-line monitoring device and an evaluation method. The device comprises a current sensor, a power supply module, a microprocessor module and a wireless radio frequency module. The output end of the current sensor is connected with an A/D port of the input end of the microprocessor module. The output end of the power supply module is connected with the corresponding power supply end of the microprocessor module; the input end of the wireless radio frequency module is connected with a corresponding I/O port of the microprocessor module; according to the invention, the current sensor is adopted to collect the current in the opening and closing process of the circuit breaker, the arithmetic average value of the collected current in the opening and closing process is calculated, the arithmetic average value is used as the consumption of one-time action energy of the circuit breaker, and the 91205/CSA-1V installation mode only needs to be attac