On-Line Monitoring Device for Mechanical Properties of OLM-NZ1 Circuit Breaker
- Passing the national quality inspection and verification for high voltage apparatus
- The unit can be installed on various types of indoor medium voltage vacuum circuit breakers
- This device is completely self-contained, and does not affect the normal operation of the original operation and control of the circuit breaker
- Monitoring items: opening and closing S/T curve, over-travel, opening distance, opening/closing time, opening/closing average speed, closing speed, opening speed, and opening/closing coil current curve
- 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
- Reflect the running state of the circuit breaker in real-time manner
- Predict the potential failure and give sound and light alarm
- The mechanical characteristics of the opening and closing process are shown in real-time digital or graphical curves
- Self-protection function of the circuit-breaker opening and closing coil; and real-time monitoring of coil status
- Allow with standard RS485/232 communication interface, and use modbus communication protocol to realize data transfer. All the monitoring parameters can be sent to the background terminal
- Automatically save the data and graphics on operating characteristics, and correspond to the operation time
- The sensor life is up to 100, 000 cycles