Simulation and Test of Potential Distribution for 750 kV Insulator String

HUO Feng; GU Li-li; CHEN Yong; HU Wei; CAO Jing

doi:10.13296/j.1001-1609.hva.2010.03.010

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Simulation and Test of Potential Distribution for 750 kV Insulator String

更新时间：2025-04-26

- Simulation and Test of Potential Distribution for 750 kV Insulator String
- High VoltageApparatus Vol. 46, Issue 3, Pages: 49-52(2010)
- 作者机构：
  
  国网电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2010.03.010
  CLC： TM216
- Published：2010
- 稿件说明：
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[1]霍锋,谷莉莉,陈勇,胡伟,曹晶.750 kV绝缘子串电位分布仿真及试验研究[J].高压电器,2010,46(03):49-52.

HUO Feng, GU Li-li, CHEN Yong, et al. Simulation and Test of Potential Distribution for 750 kV Insulator String[J]. High voltageapparatus, 2010, 46(3): 49-52.
[1]霍锋,谷莉莉,陈勇,胡伟,曹晶.750 kV绝缘子串电位分布仿真及试验研究[J].高压电器,2010,46(03):49-52. DOI： 10.13296/j.1001-1609.hva.2010.03.010.

HUO Feng, GU Li-li, CHEN Yong, et al. Simulation and Test of Potential Distribution for 750 kV Insulator String[J]. High voltageapparatus, 2010, 46(3): 49-52. DOI： 10.13296/j.1001-1609.hva.2010.03.010.

摘要

采用有限元数值分析法

针对750 kV交流输电线路绝缘子片数及均压环配置

对绝缘子串电位分布进行了计算分析

比较了均压环均压深度、环径、管径及绝缘件介电常数对绝缘子电位分布的影响;对典型配置绝缘子"I"串进行了电位分布的测量研究

并将试验和计算的结果进行了对比分析。研究表明

均压环均压深度及环径对绝缘子电位分布影响较大

均压环管径及绝缘件介电常数对电位分布影响不明显;试验与计算的绝缘子最高分布电压百分比基本一致。

Abstract

Based on the configuration of insulators and grading rings on 750 kV transmission lines

this paper analyzes the potential distribution of insulator string with the finite-element method

and compares the influences of position depth

diameter

and tube diameter of grading ring

as well as dielectric coefficient of insulation material

on the potential distribution.Moreover

potential distribution of ‘I’ insulator string with typical configuration is measured at the UHV outdoor test field of SGEPRI

and the result is compared with the calculating one.This study demonstrates that position depth and diameter of grading ring remarkably influence the potential distribution of insulator string

the influences of tube diameter of grading ring and dielectric coefficient of insulation material are slight

and the maximal distributing voltage from test is approximately equal to that from calculation.

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Related Author

WANG Li-ming1

HOU Zhi-gang1

MEI Hong-wei1

GUAN Zhi-cheng1

LI Congyang

DING Jing

TIAN Zhiyong

CAO Gui

Related Institution

Graduate School at Shenzhen,Tsinghua University

Department of Electrical Engineering, Tsinghua University

College of Electrical Engineering,Southwest Jiaotong University

State Grid Shandong Electric Power Maintenance Company

Xuji Group Co., Ltd.

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