摘要
针对10kV电缆超长距离为10kV箱式变电站负荷供电的特殊情况,分析了运行中存在的电压和无功补偿问题,得到重载情况下需要进行容性无功补偿、空载情况下不需要进行感性无功补偿的结论,并提出了在电缆线路末端补偿Q+R0/X0×P容性无功功率的最优无功补偿配置方法。应用于实际工程后证明,合理的无功功率配置可以保证10kV电缆超长距离供电的安全性和可靠性。
For the special situation of supply power by super-long distance 10 kV cable, this paper analyses the problems of voltage and reactive power compensation in operation, and it is concluded that capacitive reactive power compensation is necessary under heavy load and inductive reactive power compensalion is not necessary under no-load? and then an optimal reactive power compensation method is proposed to compensate Q+ R X, X P reactive power at the end of cable line. The research results in practical engineering shows that. reasonable reactive power compensation can ensure the security and reliability of supply power by super-long distance 10 kV cable.
作者
王浩
胡杰
肖景良
WANG Hao;HU Jie;XIAO Jingliang(Northeast Electric Power Design Institute Co.? LTD.of China Power Engineering Consulting Group. Changchun 130021 .China)
出处
《吉林电力》
2019年第1期27-30,35,共5页
Jilin Electric Power
关键词
10KV电缆
箱式变电站
超长距离供电
电压
无功补偿
10 kV cable
box substation
supply power of super-long distance
voltage
reactive power compensation
