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奉贤中压配电网中性点接地方式研究

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结合上海市电力公司奉贤供电公司电网的实际情况,对奉贤地区35 kV及10 kV电网的中性点接地方式进行研究分析.本文以异频注入法对奉贤电网28个变电站的电容电流值进行测量,并以奉贤电网28个变电站的实测电容电流值为依据,确定这28个变电站的中性点接地方式.
Neutral Grounding Mode of Fengxian Medium Voltage Distribution Network
Combined with actual situation of Fengxian Power Supply Company,the neutral grounding modes of Fengxian 35 kV and 10 kV power grid are studied in this paper.The different frequency injected method is used to measure the capacitive current of Fengxian 28 substations,and the neutral grounding modes of the 28 substations are determined based on the measured values of capacitive current.

neutral grounding modedifferent frequency injected methodcapacitive currentarc suppression coillow resistance

吴文军、张美霞、赵丹丹

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上海电力学院,上海200090

国网上海市电力公司电力科学研究院,上海200437

中性点接地方式 异频注入法 电容电流 消弧线圈 小电阻

2014

华东电力
华东电力试验研究院有限公司

华东电力

CSTPCD
影响因子:0.551
ISSN:1001-9529
年,卷(期):2014.42(8)
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