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继DX-1型电动机断相保护装置后,我们又试制了GL型三相电动机过流保护装置,GL型电动机过流保护装置是用于当三相电动机出现过负荷,绕组对地短路和断相等三种故障时,能自动切断三相电源,从而防止上述故障出现时烧毁电机。当流过电动机的电流超过额定值的25%时,保护装置就能动作。为防止起动时大电流引起误动或不能起动,保护装置有10-30秒延时。GL型三相电动机过流保护装置适用于农村无人经常照看的各种电动机,起保护作用,
Following the DX-1 motor phase failure protection device, we have trial-produced GL three-phase motor overcurrent protection device, GL motor overcurrent protection device is used when the three-phase motor overload occurs, the winding short to ground and off Three equal failure, it can automatically cut off the three-phase power, thus preventing the above failure occurs when the motor burned. When the current flowing through the motor exceeds 25% of the rated value, the protective device will operate. In order to prevent the starting current caused by mal-operation or can not start, the protection device has 10-30 seconds delay. GL-type three-phase motor over-current protection device is suitable for all kinds of motor that nobody often takes care of in the countryside, play a protective role,