Device characteristics ▲ a fully enclosed structure, with good seismic, dustproof performance. ▲ compact design, small size, light weight, beautiful appearance, easy installation. ▲ reliability unique design, no adjustable components, good device stability, immunity to interference. ▲ full finished LCD, HMI lucid, tuning operation is extremely convenient. ▲ means of AC and DC power supply, the control circuit power supply DC220V (DC110V, AC220V, AC110V required when ordering specify) ▲ with RS485 bus serial communication port, and an integrated standard MODBUS communication protocol. ▲ with the sequence of events recording function, you can record 150 events, non-volatile data. ▲ with perfect self-test function, a complete anomaly records, event records, operating records, all information is retentive. ▲ compact fine, reasonable structure, the use of high-grade, high-quality components and multilayer technology and SMT technology, the product has a very high electrical performance. ▲ integrated zero sequence current (voltage) synthesis operation can be applied to zero-sequence CT (PT) or not additional zero sequence CT (PT), to achieve zero-sequence over-current protection. ▲ using precision synthesis algorithms for GM and Y buttons for the VV connection by connection. ▲ with a complete circuit breaker operation. ▲ ultra-low power consumption. Overview A device Introduction microcomputer integrated protection device suitable for the protection and control below the voltage level of 110kV unit interval, with perfect protection, measurement, control, standby power source and communication monitoring capabilities for substations, power plants, high and low voltage power distribution Protection and Control Electrical Systems provides a complete solution that can effectively protect the safety of high and low voltage grid and auxiliary power system of stable operation. Can and other protection, automation equipment together, through the communication interface automation system. All devices can be centrally installed screen group, may also be installed in low voltage switch cabinet.