特高压GIL壳体温升测试分析及工程运维措施建议  

Test and Analysis of UHV GIL Case Temperature Rise and Suggestions for Project Operation and Maintenance Measures

作　　者：费烨[1,2] 刘云鹏 陈江波[2] 刘晓波 毛安澜[2] 郭慧浩 邵苠峰 FEI Ye;LIU Yunpeng;CHEN Jiangbo;LIU Xiaobo;MAO Anlan;GUO Huihao;SHAO Minfeng(North China Electric Power University,Hebei Baoding 071003,China;China Electric Power Research Institute,Wuhan 430074,China;State Grid Electric Power Research Institute Wuhan Nari Co.,Ltd.,Wuhan 430074,China)

机构地区：[1]华北电力大学,河北保定071003 [2]中国电力科学研究院有限公司,武汉430074 [3]国网电力科学研究院武汉南瑞有限责任公司,武汉430074

出　　处：《高压电器》2020年第12期292-296,共5页High Voltage Apparatus

基　　金：国家重点研发计划(2017YFB0902500);国家电网公司科技项目(GYW11201801543,GYW11201605592)。

摘　　要：GIL壳体温升是反映GIL运行情况的重要指标,国家标准规定运行中的GIL壳体温度不能超过70℃。为验证实际带电环境中特高压GIL温升是否满足要求,本研究结合苏通工程特高压GIL的研制和带电考核情况,开展了实际环境条件下特高压GIL壳体温升带电测试,获得了严酷环境条件下GIL壳体最高温度及壳体温升长期随环境温度变化的规律,对比分析了型式试验和带电测试条件下温升差异的原因,提出了苏通工程GIL运维建议措施。研究结果表明,GIL壳体最高温度为65.58℃(环境温度36.15℃),苏通工程南北引接站安装区域部分GIL单元考虑反光材料应用可以减少太阳辐射引起的热量吸收作用,保障GIL安全可靠运行。GIL case temperature rise is an important indicator of GIL operation.National standards stipulate that the GIL case temperature during operation cannot exceed 70℃.In order to verify the requirements of the temperature rise of the UHV GIL in the actual live environment,this paper combines the development and evaluation of the UHV GIL of the Sutong project to carry out the test of the UHV GIL case temperature rise and live under actual environmental conditions,and obtained the law that the maximum temperature of the GIL casing and the temperature rise of the case change with the ambient temperature over a long period of time under severe environmental conditions,the reasons for the temperature rise differences under the type test and live test conditions are compared and analyzed,and the GIL operation and maintenance recommended measures for the Sutong project are proposed.The research results show that the maximum temperature of the GIL case is 65.58℃(ambient temperature 36.15℃).The consideration of reflective materials in the GIL units in the installation area of the north and south terminals of the Sutong project can reduce the heat absorption caused by solar radiation and ensure the safe and reliable operation of the GIL.

关 键 词：UHV GIL 温升 壳体 苏通工程 

分 类 号：TM75[电气工程—电力系统及自动化]