摘要
大、中型工厂变电所主变压器低压侧常采用单母线分段的运行方式。将PLC应用于单母线分段联络断路器的备用电源自动投入装置中 ,可提高供电系统的可靠性。与继电器组成的备用电源自动投入装置相比 ,具有可靠性高、接线简单、控制灵活。
The low voltage side of the main transformers in the substations of large and middle-sized plants uses operation mode in the single-bus sections.Application of PLC in the standby power source automatic put-in device for tie circuit breader on the single-bus section can increase the reliability of the power supply system.Compared to the standby power source automatic put-in device composed of the relays,PLC has advantages including high reliability,simple connection,flexible control,convenient adjustment and test,small investment,etc.
出处
《电力建设》
北大核心
2002年第3期21-23,共3页
Electric Power Construction
关键词
PLC
厂供电
备用电源
自动投入
PLC
auxiliary power supply
standby power source
automatic put-in
