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电梯技术条件GB10058-88规定电梯的供电系统应设有断相、错相保护装置,以防止相序改变时引起电机反转及缺相时损坏电机。决不允许将有故障的保护器控制触点短接,以此来维持电梯运行,这样做会产生事故。如我所一台XPM-80电梯,断相、错相保护器损坏后未及时检修而是将保护器触点短接,来维持电梯运行,就出现了下列故障:无论按向上或向下按钮,轿厢均向上运行,
Elevator technical conditions GB10058-88 provides that the elevator power supply system should be provided with phase failure, wrong phase protection device to prevent the phase sequence changes caused by motor reversal and phase loss damage to the motor. Never allow faulty protector control contacts shorted, in order to maintain the elevator operation, doing so will result in accidents. Such as one of my XPM-80 elevator, phase failure, fault phase failure protection but not timely maintenance but the short circuit protector contacts to maintain the operation of the elevator, there was the following failure: No matter press the up or down button , The car is up to run,