油浸式变压器温度测量装置关键参数确立方法及实验研究  

Study on the key parameter establishment method and experiment of oil immersed transformer temperature measuring device

作　　者：易杰 罗素琳 郭众奇 邱成 刘海华 蔡燕强 YI Jie;LUO Sulin;GUO Zhongqi;QIU Cheng;LIU Haihua;CAI Yanqiang(Guangxi Institute of Metrology and Testing,Nanning 530007,China;Electric Power Research Institute of Guangxi Power Grid Co.,Ltd.,Nanning 530023,China)

机构地区：[1]广西计量检测研究院,广西南宁530007 [2]广西电网有限责任公司电力科学研究院,广西南宁530023

出　　处：《中国测试》2021年第8期18-21,共4页China Measurement & Test

摘　　要：针对油浸式变压器温度测量装置没有国家计量检定技术规程或规范,电力系统对此装置的检测主要依据的DL/T 572—2010和DL/T 1400—2015两规范中“两表偏差”技术参数分别为5℃和0.5℃相去甚远的现状,该文根据误差理论以及不确定分析等理论,对“两表偏差”的误差来源以及主要影响因素进行分析研究,提出“两表偏差”由“指针式温度计最大允许误差”进行确立的方法且进行实验验证,并应用到广西地方规范的起草和编制,同时为国家规程的起草编制和修订提供思路和参考。As there is no national metrological verification technical regulations or specifications for oilimmersed transformer temperature measurement devices,the power system’s detection of this device is mainly based on the“two-meter deviation”technology in the two specifications DL/T 572—2010 and DL/T 1400—2015,the parameters are 5℃and 0.5℃,which are far from each other.According to the error theory and uncertainty analysis theory,the error sources and main influencing factors of“two-meter deviation”are analyzed and studied,the method that“two-meter deviation”is established by“pointer thermometer maximum permissible error”is put forward and verified by experiments.The corresponding results are obtained and applied to the drafting and compilation of local norms in Guangxi.At the same time,it provides ideas and references for drafting and revising national regulations.

关 键 词：油浸式变压器 两表偏差 关键参数 

分 类 号：TB94[一般工业技术—计量学]