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针对钙镁磷肥生产装置中较大功率鼓风机配套电机(630~2500kW6kV)启动时,对电网冲击较大、浪费电能等问题,自行设计了GKQ-150/6型交流真空接触器的新型电动机综合启动装置。该启动装置具有降压启动功能、短路保护功能、过载保护功能、零序电流保护功能、一次过电压保护功能等良好的技术特性。文中介绍了启动装置主电路与控制电路,以及在钙镁磷肥高压风机电动机启动中的应用情况。
Aiming at the problems of larger power blower supporting motor (630 ~ 2500kW6kV) in calcium magnesium phosphate fertilizer plant, a new type of motor of GKQ-150/6 AC vacuum contactor was designed by ourselves Device. The starting device has a good start-up features such as step-down, short circuit protection, overload protection, zero sequence current protection, an over-voltage protection and other good technical characteristics. The article introduces the starter circuit and control circuit, as well as the application of calcium magnesium phosphate high voltage fan motor start.