主变重瓦斯动作分析  

Analysis on a False Severe Gas Protection Action of Main Transformer

作　　者：刘海燕[1] 张国超[2] 刘向磊[2] 

机构地区：[1]三峡电力职业学院,湖北宜昌443000 [2]湖北清江水电开发有限责任公司,湖北宜昌443000

出　　处：《水电与新能源》2016年第2期43-46,共4页Hydropower and New Energy

摘　　要：重点分析了柬埔寨达岱水电站主变压器重瓦斯误动作的原因,通过对主变压器重瓦斯保护二次回路绝缘、变压器本体和瓦斯继电器、主变压器油温、故障录波等进行检查试验,各项都符合变压器正常工作的技术要求,结果表明是外界因素干扰引起重瓦斯误动作,提出了预防重瓦斯误动作、确保主变安全运行的措施。In the Tatay Hydropower Station of Cambodia, a false severe gas protection action of the main transformer is observed. Examinations on the second circuit insulation for the severe gas protection, the main transformer body and the gas relay, the oil temperature, and the fault recording show that all of the above items meet the technical requirement. Thus, the severe gas protection fault could be caused by external interfering factors. Correspondingly, measures to prevent such interferences are proposed to assure the safe operation of the main transformer.

关 键 词：主变压器 重瓦斯误动 原因分析 预防措施 达岱水电站 

分 类 号：TM774.1[电气工程—电力系统及自动化]