6、c deviceofthe factory floor. Withthedevelopmentofthesociety, the quality, reliability and economy demands oftheelectricityenergywere increasingtothefactory.Whetherthedesignofthefactoryelectricitysupplyis perfect not only affect the plant's production, but also reflects the reliability o
7、f power supply to the factory and safety, it is closely relatedtothe economic benefit of enterprises, equipment, safe operation and safety of workers,itisimportant for the development of production fordoinga goodjob ofthefactory power supply work. This design is a p