500kV王店变电站直流系统改造工程研究

Study on DC System Reform Project of 500 kV Wangdian Substation

根据500kV王店变电站直流系统状况,从保证蓄电池组安全、维护人员人身安全和系统运行安全三个方面分析了接线中存在的问题,给出了直流系统接线方式的改造方案。针对改造后直流系统存在的不足,建议该变电站采取"两蓄三充"的接线模式,进一步提高直流系统的供电可靠性。

According to DC System Conditions of 500 kV Wangdian Substation, analysis was made to the problems of wiring from three as- pects of assuring storage batteries groups, maintaining personnel life safety and making system operation safe. The reform scheme of DC system wiring method was given. Aiming at that there existed insufficient points after reform of DC system, this paper suggested adopting ＂two storage batteries and three chargers＂ wiring mode in the substation, so as to raise power supply reliability of DC system further.