断路器机构不能合闸的原因分析

Analysis of the reason on breaker failed to switch on

忽视电磁铁剩磁对铁芯动作的影响,以及对电磁铁内的垫片、结构任意改变,将导致断路器机构不能正常动作。本文对一起因分闸电磁铁剩磁导致断路器不能正常动作的原因进行检查分析,并提出预防措施。

This paper ignored the influence of electromagnet residual magnetism to iron core operation. The change of spacer in electromagnet and its construction caused the breaker could not normally act. This paper analyzed the reason why the breaker could not normally act caused by tripping electromagnet residual magnetism, and proposed the precautionary measures.