特高压换流站绝缘油及SF_6气体现场试验要求浅析  

On-site Testing Requirements of Ultra-high Voltage Converter Transformer Insulating Oil and SF_6 Gas

作　　者：苏陈云 

机构地区：[1]湖南省送变电工程公司调试分公司,长沙410000

出　　处：《电气技术》2016年第7期146-149,160,共5页Electrical Engineering

摘　　要：针对哈密-郑州直流特高压输电工程±800k V郑州换流站换流变压器绝缘油处理,从新油交货、注入变压器前油、本体热油循环后、本体静置后4个基建阶段以及换流变残油、有载调压开关油试验几个方面,全面总结了换流变压器绝缘油技术指标、试验项目及过程质量控制要点;同时对郑州特高压换流站SF_6气体相关试验(主要包括SF_6气体密度继电器校验和SF_6气体试验)的控制要点进行了浅析;并且针对换流变阀侧套管SF_6密度继电器跳闸接点的特殊性,采用了一种新的试验方法,通过现场试验,测试结果符合标准要求,证明示值校验法校验密度继电器接点是可行的。For Hami-Zhen Zhou UHV DC transmission project of ±800k V Zhen Zhou UHV converter transformer for insulating oil transformer, test standards, test items and process quality control points of Converter transformer insulating oil were summarized in the aspects of the new oil, injection transformer oil, hot oil circulation, static oil of transformer, residual oil and OLTC oil; And the influence of transformer oil field test factors and treatment methods were introduced; At the same time, the control points of gas test of Zhen-Zhou HUV converter were analyzed; Because of the Particularity of the SF_6 density relay trip contacts on the Converter transformer bushing, a new test method was used; And the test results meet the standard requirements which prove the new method is viable.

关 键 词：特高压换流站 油试验 SF6气体密度继电器 SF6气体试验 

分 类 号：TM721.1[电气工程—电力系统及自动化] TM855