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一种防止10 kV架空绝缘导线雷击断线用新型串联间隙金属氧化物避雷器
引用本文:沈海滨,陈维江,张少军,陈平,袁力,尹彬,李文龙. 一种防止10 kV架空绝缘导线雷击断线用新型串联间隙金属氧化物避雷器[J]. 电网技术, 2007, 31(3): 64-67
作者姓名:沈海滨  陈维江  张少军  陈平  袁力  尹彬  李文龙
作者单位:中国电力科学研究院,北京市,海淀区,100085;国网武汉高压研究院,湖北省,武汉市,430074;华北电网有限公司,廊坊供电公司,河北省,廊坊市,065000;山东淄博安泰电气有限公司,山东省,淄博市,255086;廊坊电科院东芝避雷器有限公司,河北省,廊坊市,065001
摘    要:研制了一种由高压穿刺电极和避雷器本体构成的纯空气间隙金属氧化物避雷器。高压穿刺电极与绝缘导线穿刺接触引出高电位,当感应雷或直击雷产生足够高幅值的过电压作用于绝缘导线时,避雷器间隙击穿,避雷器本体释放雷电能量抑制工频续流起弧,达到保护绝缘导线免于断线的目的。通过对该避雷器进行大量的雷电冲击放电试验,确定了间隙距离和安装位置。

关 键 词:绝缘导线  雷击断线  高压穿刺电极  金属氧化物避雷器  雷电冲击放电试验
文章编号:1000-3673(2007)03-0064-04
修稿时间:2006-08-14

A New Metal Oxide Surge Arrester with Series Gap to Prevent Breakage of 10 kV Overhead Insulated Conductors Caused by Lightning Stroke
SHEN Hai-bin,CHEN Wei-jiang,ZHANG Shao-jun,CHEN Ping,YUAN Li,YIN Bin,LI Wen-long. A New Metal Oxide Surge Arrester with Series Gap to Prevent Breakage of 10 kV Overhead Insulated Conductors Caused by Lightning Stroke[J]. Power System Technology, 2007, 31(3): 64-67
Authors:SHEN Hai-bin  CHEN Wei-jiang  ZHANG Shao-jun  CHEN Ping  YUAN Li  YIN Bin  LI Wen-long
Affiliation:1. China Electric Power Research Institute, Haidian District, Beijing 100085, China; 2. Wuhan High Voltage Research Institute of SGCC, Wuhan 430074, Hubei Province, China; 3. Langfang Power Supply Bureau, Langfang 065000, Hebei Province, China; 4. Shandong Zibo Antai Electric Ltd., Zibo 255086, Shandong Province, China; 5. LangfangEpri-ToshibaArresterLtd., Langfang 065001, HebeiProvince, China
Abstract:A new electrode and metal oxide surge arrester (MOA) with series air gap is developed, the gap is a pure air one and is composed by high voltage piercing electrode and MOA in itself. The high potential is led out by piercing contact between the high voltage piercing electrode and insulated conductor. When the overvoltage with enough high amplitude caused by direct lightning stroke and inductive lightning is applied to insulated conductor, the gap of MOA is broken down and the MOA itself releases lightning energy to restrain power frequency follow current from arcing, and the purpose of preventing insulated conductor from breakage is achieved. By means of lots of lightning impulse tests for the MOA with series gap, the distance of series gap and the position of piercing electrode are determined.
Keywords:insulation-covered conductors  breakage caused by lightning stroke  high voltage piercing electrode  metal oxide surge arrester (MOA)  lightning impulse test
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