Product Usage

Suitable for underground coal mines in explosive environments, high-voltage squirrel cage AC asynchronous motors with a rated frequency of 50Hz, rated voltage of 10kV, 6KV, and rated power below 2500kW are subjected to voltage reduction and current limiting starting. It has the advantages of low starting current, reduced impact on the power grid, and reliable starting performance. The technical parameters of the starting reactor are the same as those of the ordinary starting reactor, and there is a high-voltage vacuum contactor that shortens the reactor after starting. The contactor operation is automatically completed by the internal controller, without the need for additional control lines; Internally, we have taken the lead in adopting a fully Chinese and Chinese micro computer integrated controller, which not only has the ability to adjust time, current, and temperature values without opening the door, but also has the function of reactor temperature exceeding limit protection and reactor short circuit error protection (that is, when the high-voltage bypass contactor cannot be normally closed, it can automatically cut off the higher-level switch). Connected with KJ series underground power grid monitoring system, it can realize remote automatic control, monitoring and monitoring of power equipment, and realize modern management such as unattended Electrical substation.

Main features

Adopting advanced and reliable quick opening structure, drawer type core frame, compact structure, easy to repair and maintain; Set up an independent secondary wiring chamber, which is convenient for wiring and has multiple external terminals to meet the various wiring needs of users;

The reactor body is cast with epoxy resin, which improves the pressure resistance level; Equipped with bypass high-voltage vacuum contactor, short circuiting the reactor after starting; Equipped with bypass fault, over temperature protection, current detection and protection functions to ensure the safe operation of the reactor, and equipped with emergency short-circuit reactor control function;

Adopting high-performance digital comprehensive protection device, full Chinese large screen LCD display, menu style operation, rich display information, user-friendly interface, combined with human-machine interface keyboard, it can achieve protection setting modification and various operations without power outage;

RS485, CAN, Ethernet interface, 4G/5G/WIFI can be optionally configured to communicate with the coal mine power grid monitoring system, with remote sensing, remote control, remote regulation, remote signaling, remote viewing and other functions to realize unattended Electrical substation.

Main technical parameters