110 kV电阻接地系统电气设备适应性研究及试验

WANG Shenjie

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110 kV电阻接地系统电气设备适应性研究及试验

更新时间：2025-08-13

- 110 kV电阻接地系统电气设备适应性研究及试验
- Automation of Electric Power Systems Vol. 39, Issue 11, Pages: 193-198(2015)
- 作者机构：
  
  武汉大学电气工程学院,湖北省,武汉市,430072
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2015
- 稿件说明：
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WANG Shenjie. [J]. Automation of electric power systems, 2015, 39(11): 193-198.
DOI：

WANG Shenjie. [J]. Automation of electric power systems, 2015, 39(11): 193-198. DOI：

摘要

110 kV配电网采用中性点经合适的电阻值接地后

能够消除单相接地故障时负荷侧电压出现的暂降／暂升

但同时也会引起系统中性点和非故障相对地电压的升高。因此

原工作于直接接地系统的部分110 kV电气设备不能直接用于110 kV中性点经电阻接地系统中。采用理论分析和数字仿真的方法

对国产110 kV电气设备用于中性点经电阻接地系统的适应性进行了研究

给出了设备的选型建议

并通过现场试验证明了国内110 kV配电网采用中性点经电阻接地方式的可行性和优越性。

Abstract

110 kV neutral resistance grounding system is able to eliminate voltage sag on the load side due to the single-phase grounding fault. At the same time

however

the voltage of the neutral point and non-fault phase voltage to ground will be elevated. So part of the 110 kV electrical equipment used in the original neutral direct grounding system cannot be used directly in the 110 kV neutral resistance grounding system. The adaptability of electrical equipment for the 110 kV neutral resistance grounding system is studied through theoretical analysis and simulation. Suggestions are made for selection of 110 kV electrical equipments. And a field experiment on the 110 kV neutral resistance grounding system is performed to prove the feasibility and excellence of 110 kV neutral resistance grounding system. This work is supported by State Grid Hubei Electric Power Company (No. 5215B014003H).

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