石油钻井队所用的电动机,在野外工作,常因各种不同的原因造成单相断电而烧毁。为了保证电动机的正常运转,我部修复车间职工群策群力,革新成功电动机继电保护器。当三根电源中的任何一相断电时,继电保护器能使电动机自动停止转动。 我们是从一九七三年开始试制和试验电动机继电保护器的,经过不断改进和完善,已有二十多台在井队推广使用。实践证明,这种电动机继电保护器特别适应于野外工作条件,并 The motors used by oil rigs work in the field and often cause single-phase power outages and burnings for a variety of reasons. In order to ensure the normal operation of the motor, I work to repair the workshop team work together to innovate successful motor relay. When any one of the three power supplies is de-energized, the relay protects the motor from rotating automatically. We started to trial and test the motor protection relay from 1973. After more than 20 continuous improvement and improvement, more than 20 units have been used in the well team. Practice has proved that this motor relay protection particularly adapted to the field working conditions, and