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On-Line Monitoring Device

Product Features

  • This device is completely self-contained, and does not affect the normal operation of the original operation and control of the circuit breaker;
  • The sensor life is up to 100, 000 cycles;
  • Reflect the running state of the circuit breaker in real-time manner;
  • Predict the potential failure and give sound and light alarm;
  • Compare the S/T curve during opening/closing with the envelope of the manufactured products to determine any change in features of the circuit breaker;
  • Make real-time monitoring on the opening and closing coils of the circuit breaker and play protective functions, and give alarm when the coil current is abnormal;
  • Automatically save the data and graphics on operating characteristics, and correspond to the operation time;
  • Allow with standard RS485/232 communication interface, and use modbus communication protocol to realize data transfer.

Changes brought by Online Monitoring

  • Achieve transition from regular & scheduled maintenance to condition-based maintenance;
  • Command the features and states of equipment in real-time manner;
  • Avoid excessive maintenance and running with fault;
  • Upload the equipment status on as-needed basis to the centralized control room.

Monitoring content

Closing time displacement curve, circuit breaker over-travel, circuit breaker closing time, average closing speed of circuit breakers, circuit breaker closing speed, opening time displacement curve, circuit breaker contact spacing, circuit breaker opening time, average opening speed of circuit breaker, and circuit breaker opening speed.

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