摘要
随着网络的增大，过去深圳１０ｋＶ配网中性点不接地运行，变电设备事故频繁。１０ｋＶ网络中性点经１６Ω电阻接地后，变电站１０ｋＶ单相接地避免发展成变压器出口的三相短路，配网过电压水平大大降低，１０ｋＶ设备，特别是变压器运行的可靠性大大提高。
In the past, neutral operated in non-grounding manner in 10kV power distribution system, with the increasing of the system, the power equipment failure happened frequently. After neutral is grounded through 16Ω resistance, the growth of 10kV single-phase grounding failure in substation is avoid, the three-phase short-circut failure of transformer output and the system overvoltage level are greatly decreased, 10kV equipment, especially transformer's operation reliability is greatly increased.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
1997年第3期78-80,共3页
High Voltage Engineering
关键词
深圳市
配电网
中性点
电阻接地
可靠性
power distribution system resistance grounding reliability
