Flameproof and intrinsically safe permanent magnet vacuum feed sw
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It is suitable for coal mine in explosive environment, in the power supply system with rated frequency 50Hz, rated voltage 1140V, 660V, rated current 630A and below the three-phase neutral point is not grounded, as the main switch or separate switch of the distribution system, and can also be used as the infrequent start and stop of large capacity motor. The feed switch is equipped with electric and manual isolation switch in the front stage of the vacuum circuit breaker, which greatly improves the safety and convenience of maintenance operation, and is an ideal replacement of the traditional feed switch. 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.
It is suitable for coal mine in explosive environment, in the power supply system with rated frequency 50Hz, rated voltage 1140V, 660V, rated current 630A and below the three-phase neutral point is not grounded, as the main switch or separate switch of the distribution system, and can also be used as the infrequent start and stop of large capacity motor. The feed switch is equipped with electric and manual isolation switch in the front stage of the vacuum circuit breaker, which greatly improves the safety and convenience of maintenance operation, and is an ideal replacement of the traditional feed switch. 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.
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