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0引言在中原油田,DW15系列万能式断路器是低压配电网的关键元件。DW15系列具有短路分断能力强,分断时间短,且具有失压保护功能等优点。但在实际应用中,倒闸过后,由于失压保护,不能自动合闸。倒闸时间不定,值班人员若不能及时到位储能合闸,将会延迟给用户送电。为解决人工切换低压断路的问题,实现断路器的自动投合是必要的。而自主设计、开发断路器的自动投合装置,是节缩成本的有效途径。
0 Introduction In Zhongyuan Oilfield, DW15 series universal circuit breaker is the key component of low voltage distribution network. DW15 series with short circuit breaking ability, breaking time is short, and has the advantages of loss of pressure protection. However, in practical applications, after switching off, due to loss of pressure protection, can not be automatically closed. The time for turning on the brake is uncertain. If the duty officer can not close the stored energy in time, the power transmission to the user will be delayed. In order to solve the problem of manually switching the low voltage circuit breaker, it is necessary to realize the automatic circuit breaker engagement. Independent design and development of circuit breakers automatic devices, is an effective way to reduce costs.