特高压交流GIL出厂试验技术综述

doi:10.11930/j.issn.1004-9649.202004008

中国电力 ›› 2020, Vol. 53 ›› Issue (12): 151-158.DOI: 10.11930/j.issn.1004-9649.202004008

特高压交流GIL出厂试验技术综述

陈双^1,2, 刘焱², 卞超¹, 张鹏飞³, 崔博源², 陈允², 徐家忠⁴

1. 国网江苏省电力有限公司检修分公司，江苏南京 211100;
2. 中国电力科学研究院有限公司，北京 100192;
3. 国家电网有限公司，北京 100031;
4. 山东电工电气日立高压开关有限公司，山东济南 250300

收稿日期:2020-04-03 修回日期:2020-04-19 发布日期:2020-12-16
作者简介:陈双(1992—)，男，通信作者，硕士，从事特高压交流设备状态诊断、人工智能技术在电力系统中的应用研究，E-mail：1516142896@163.com
基金资助:
国家电网有限公司科技项目 (特高压 GIL绝缘子伸缩节及插接触头技术特性及质量管控研究，GYB11201801457)。

A Review of UHV AC GIL Ex-factory Test Technology

CHEN Shuang^1,2, LIU Yan², BIAN Chao¹, ZHANG Pengfei³, CUI Boyuan², CHEN Yun², XU Jiazhong⁴

1. State Grid Jiangsu Electric Power Company Maintenance Branch, Nanjing 211100, China;
2. China Electric Power Research Institute, Beijing 100192, China;
3. State Grid Corporation of China, Beijing 100031, China;
4. SDEE Hitachi High-Voltage Switchgear Co., Ltd., Jinan 250300, China

Received:2020-04-03 Revised:2020-04-19 Published:2020-12-16
Supported by:
This work is supported by Science and Technology Project of SGCC (Research on Technical Characteristics and Quality Control of UHV GIL Insulators, Expansion Joints and Plug-in Contacts, No.GYB11201801457).

摘要/Abstract

摘要： 针对特高压气体绝缘金属封闭输电线路（GIL）在苏通GIL综合管廊工程中的应用，介绍特高压GIL的结构特点，分析特高压GIL的主要技术参数、型式试验及出厂试验性能要求，提出一种可以有效提升特高压GIL气体密封试验效率的局部扣罩动态真空正压氦检漏法。此外，介绍一种四工位绝缘试验倒换工装及一种满足特高压GIL标准雷电冲击耐受电压试验要求的SF₆气体绝缘罐式冲击电压发生器，配合SF₆气体绝缘罐式变压器，特高压GIL出厂绝缘试验时间减少到传统方式的1/4，为GIL的大规模应用提供参考。

关键词: 特高压GIL, 苏通工程, 动态真空氦检漏, 四工位绝缘试验, 倒换工装, 标准雷电冲击

Abstract: Based on the application of UHV gas-insulated metal-enclosed transmission line(GIL)in the Sutong GIL Utility Tunnel Project, this paper firstly introduces the structural characteristics of UHV GIL, and analyzes its main technical parameters, type test and performance requirements for ex-factory test. And then a partial buckle dynamic vacuum positive-pressure helium leak detection method is proposed, which can effectively improve the efficiency of the UHV GIL gas sealing test. In addition, a four-station insulation test switching tool and a SF₆ gas-insulated tank-type impulse voltage generator that meets the requirements of the UHV GIL standard lightning impulse voltage withstand test are introduced. The time for ex-factory insulation test of the UHV GIL is reduced to 1/4 of the traditional method. The testing practice introduced in this paper can provide a reference for the large-scale application of GIL.

Key words: UHV GIL, Sutong project, helium leak detection, four-station insulation test, switching tool, standard lightning impulse

陈双, 刘焱, 卞超, 张鹏飞, 崔博源, 陈允, 徐家忠. 特高压交流GIL出厂试验技术综述[J]. 中国电力, 2020, 53(12): 151-158.

CHEN Shuang, LIU Yan, BIAN Chao, ZHANG Pengfei, CUI Boyuan, CHEN Yun, XU Jiazhong. A Review of UHV AC GIL Ex-factory Test Technology[J]. Electric Power, 2020, 53(12): 151-158.

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https://www.electricpower.com.cn/CN/Y2020/V53/I12/151

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特高压交流GIL出厂试验技术综述

A Review of UHV AC GIL Ex-factory Test Technology

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