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Suitable for underground coal mines with explosive hazardous environments, in power supply systems with a rated frequency of 50Hz, rated voltage of 10KV, 6KV, and rated current not exceeding 630A, where the three-phase AC neutral point is not grounded or grounded through arc suppression coils, the high-voltage motor can be directly started or stopped remotely or to the ground, while protecting the motor and related power supply circuits; Starters are particularly suitable for frequent operation and heavy load coal mining machinery equipment, and are more effective when used in conjunction with high-voltage starting reactors or high-voltage soft start controllers. 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.
It is applicable to the underground coal mine in explosive environment. In the power supply system with the rated frequency of 50Hz, rated voltage of 10KV, 6KV and three-phase AC neutral point ungrounded or grounded through arc suppression coil, it provides protection, measurement and control power supply (centralized) for the mine flameproof and Intrinsic safety high-voltage vacuum distribution device or high-voltage vacuum electromagnetic starter, reduces the number of Voltage transformer in the line, and reduces the harm of resonance overvoltage to the power supply system. 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.
Mine flameproof uninterruptible power supply box (hereinafter referred to as "power box") is suitable for underground coal mines in explosive environments, and is specially designed to provide DC power supply completely independent of the power supply system for power supply equipment such as high-voltage explosion-proof switches and low-voltage feed switches in the underground Electrical substation; The power box integrates advanced lithium battery matching technology, charge and discharge management technology, balance technology, explosion-proof technology, communication bus technology, display technology, etc., providing stable and reliable backup power supply for electrical equipment. 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.
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.