瓦斯继电器定值校验及影响因素分析  

Gas Relay Setting Verification and Analysis of Influencing Factors

作　　者：常阿飞 于凯 鲁菲菲 CHANG Afei;YU Kai;LU Feifei(SPIC Henan Electric Co.,Ltd.,Technical&Information Center,No.100 Wutong Road,High-tech District,Zhengzhou Henan 450001)

机构地区：[1]国家电投集团河南公司技术信息中心,河南郑州450001

出　　处：《河南科技》2019年第1期31-32,共2页Henan Science and Technology

摘　　要：瓦斯继电器是变压器内部故障的主要保护元件,能灵敏反应变压器短路故障、铁心故障、绕组内部匝间短路及绝缘劣化和油面下降。因此,需定期对瓦斯继电器进行定值校验。本文简要介绍了油杯式和空芯浮子式瓦斯继电器动作的原理,并详细分析了瓦斯继电器定值的确定和校验方法,分析了影响试验结果的原因,针对瓦斯继电器校验提出了相关建议。Gas relay is the main protection component of transformer internal fault.It can sensitively react transformer short circuit fault,core fault,winding internal turn-to-turn short circuit,insulation deterioration and oil level drop.Therefore,it is necessary to check the fixed value of gas relay regularly.This paper briefly introduced the operation principle of oil cup type and air core float type gas relay,and analyzed in detail the determination and calibration method of gas relay fixed value,analyzed the reasons affecting test results,and put forward relevant suggestions for gas relay calibration.

关 键 词：瓦斯继电器 密封性 流速值校验 

分 类 号：TM586[电气工程—电器]