摘要
不同型号的变压器保护装置的比率动作特性不同,内部的差流补偿原理也不尽相同,与此同时,变压器接线方式对差流计算也有影响,从而使得调试试验电流接线方式和计算方法也不同,给电力系统继电保护工作者带来了一定程度的困扰。为解决该问题,分析不同变压器保护装置比率差动电流补偿方式的不同,在分析原理的基础上提出了调试方法。
The ratio of the action characteristics of transformer protection devices of different types and the internal differential current compensation principle are different.Due to the way of transformer connection affects the calculation of differential current,the connection mode and calculation method of the test current are also different.These problems bring troubles of relay protection to workers in power system.In order to solve this problem,the difference of the differential current compensation mode of different transformer protections was analyzed,and a debug method was proposed on the basis of the analysis principle.
作者
许津津
XU Jinjin(Quanzhou Power Supply Company of Fujian Power Grid Company,Quanzhou 362000,China)
出处
《电工技术》
2018年第5期109-111,共3页
Electric Engineering
关键词
微机变压器保护
比率差动
调试方案
microcomputer protection of transformer
ratio differential
debug method
