Abstract：In order to solve the problem of power plant 1000MW unit plant with large capacity motor starting with the system short-circuit voltage motor feedback current problems such as the difficulty and high plant. Combining with the system wiring mode and load characteristics of 1000MW unit expansion project factory, load analysis to determine the high plant transformer and standby transformer capacity and number of, from the start of induced draft fan, high plant transformer and standby transformer type, switch equipment selection, and the high voltage switch cabinet layout mature, wiring and other aspects of the 6kV, 10kV two auxiliary power wiring scheme comparison of technology and economy, proposes the use of electric system design pressure plant optimal. The results show that, the auxiliary system adopts the following scheme more reasonable, the 10kV voltage level voltage is high pressure plant, each unit is provided with a high voltage transformer, a 2 bus, responsible for unit load and the public power supply. Two units with a splitting variable as the startup/standby transformer.
李建强. 浅析电厂1000MW机组厂用电压等级的选择优化[J]. 电气技术, 2015, 16(12): 110-114.
Li Jianqiang. Optimization of Voltage Level Selection of 1000MW Units in Power Plant. Electrical Engineering, 2015, 16(12): 110-114.
2015, Vol. 16 
