特高压变压器调压补偿变调试分析  

Commissioning and analysis of ultra high voltage regulating and compensating transformer

作　　者：马泽乔 Ma Zeqiao(Beijing Electric Power Transmission and Transformation Company Limited,Beijing 102401)

机构地区：[1]北京送变电有限公司

出　　处：《电气技术》2020年第1期121-125,共5页Electrical Engineering

摘　　要：1000kV变压器具有电压等级高、调压补偿容量大的特点,为了运输方便,通常把调压补偿部分与变压器主体分开布置。考虑到变压器结构和差动保护极性要求的特殊性,以及由于档位变换引起的调压补偿变绕组电流互感器极性变化,特高压变压器保护与较低电压等级的变压器保护相比具有较大差异。本文阐释了特高压变压器的调压方式,以及调压补偿变的保护配置情况和差动保护原理,并对1000kV变压器保护装置的电流极性进行分析,介绍了调压补偿变继电保护调试方法,供电力系统基建和检修人员参考。Because of its high voltage level and large capacity,the 1000kV transformer is separated into the main transformer and the regulating and compensating transformer,which is convenient for transportation.Considering the particularity of transformer structure and requirements for the polarity of differential protection,as well as the polarity change of the regulating and compensating transformer winding current transformer,caused by switching of transformer tap stalls,the relay protection of ultra high voltage(UHV)transformer is different from those with lower voltage level.This paper explains the voltage regulation mode of UHV transformer,in addition to relay protection configuration and differential protection principle of regulating and compensating transformer.And it also analyzes the current transformer polarity of relay protection device,introduces the commissioning method of regulating and compensating transformer.It may provide reference for power system construction and maintenance staff.

关 键 词：特高压变压器 调压补偿变 差动保护 调试方法 

分 类 号：TM41[电气工程—电器]