Journal of Electrical Engineering and Automation

Guoneng Shenwan Maanshan Power Generation Co., Ltd. operates four 330,000-kilowatt thermal power units with a total installed capacity of 1,320MW. Among them, 26 and 15 years after the first-phase project (units #1 and 2) and the second-phase expansion project were put into operation respectively, due to changes in operating conditions, the power plant substation and switch station had equipment heating problems, which must be properly handled. This paper analyzes the heating phenomenon of operating equipment in substations and switching stations, explores the fundamental principles that lead to heating of operating equipment in substations and switching stations in power plants, and puts forward suggestions and countermeasures to effectively promote the safe, stable and sustainable development of power companies.

Power plant; Substation and switching station operating equipment; Heat generation; Preventive measures