Product use

Suitable for underground coal mine in explosive environment, in rated frequency 50Hz, rated voltage 10KV, 6KV, rated current not more than 630A three-phase AC neutral point is not grounded or grounded by arc suppression coil power supply system, installed in the high voltage side of mobile substation, with my company's BXJ series of mine flameproof mobile substation with low voltage protection box. The new mobile substation system is composed of low voltage fault disconnecting high voltage power supply. Connected with KJ series underground coal mine power grid monitoring system, it can realize remote automatic control, monitoring and monitoring of power equipment, and realize modern management such as unattended substation.

Main feature

Adopt quick-opening flameproof housing, small size, compact internal structure; The high voltage isolation switch chamber is designed with an observation window, which is convenient to observe whether the contact contact and closing are good;

Adopt the international advanced low-voltage fault breaking high-voltage power supply operation mode;

The circuit breaker adopts a new type of bistable permanent magnet mechanism, which has electronic control, permanent magnet retention and long life.

Easy to operate, and with electric closing and manual energy storage closing dual mechanism; With reliable and perfect mechanical and electrical lock;

Full Chinese LCD microcomputer integrated protection, real-time display of three-phase voltage, current, switching state, power factor, active power, reactive power, electricity, etc.

With three-stage protection (short circuit, overcurrent, overload), over and under voltage, selective leakage protection, three-stage zero sequence current protection, insulation monitoring, three-phase imbalance, short circuit small delay, PT break, fault memory, fault self-diagnosis, mobile transformer overtemperature protection and other protection functions; Voltage loss protection through the current lock and increase the delay setting, to avoid voltage flicker caused by | power distribution device voltage loss trip;

Parameter setting through three buttons, and set password protection;

With the function of self-test and long-term memory, it is convenient for the staff to diagnose and analyze the fault;

RS485, CAN, Ethernet interface, 4G/5G/WIFI can be configured to communicate with the coal mine power grid monitoring system, with telemetry, remote control, remote control, remote message, remote viewing and other functions to achieve unattended substation.

Main technical parameters