交流特高压变压器特点浅析  

Analysis of Characteristics of UHV Transformer

作　　者：叶严军 崔淑芳[1] 

机构地区：[1]山西省电力公司检修公司,山西长治046603

出　　处：《河南电力》2013年第1期5-8,13,共5页Henan Electric Power

摘　　要：本文对交流特高压变压器的特点进行了较全面分析,重点对调压方式和调压补偿变差动保护TA极性问题进行了分析。由于特高压变压器电压等级高,中压线端调压方式很难实现,本文说明了特高压变压器采用中性点调压方式的合理性,并分析了在各档位下的调压效果,对比说明低压补偿的作用;由于特高压变压器主体和调压补偿部分分体布置,调压补偿变差动保护既要满足调压变和补偿变共用TA不同极性要求,又要解决正、反方向调压引起电流极性改变,本文说明了调压补偿变差动保护TA极性问题,并分析了校验方法。This article for UHV Transformer characteristics are analyzed, focusing on the pressure method and pressure compensation of transformer differential protection TA polarity problem analysis.As a result of UHV Transformer for high voltage, voltage regulating method is difficult to achieve, this paper illustrates the UHV Transformer with neutral point voltage regulation mode of rationality, and analyzes the various stalls under the pressure effect, contrasting descriptions of low-voltage compensation effect; because of UHV Transformer main body and the voltage compensation partial split arrangement, adjustable compensation transformer differential protection should not only meet the voltage regulating transformer and the compensation variable shared TA different polar requirement, should solve is, reverse voltage caused by current polarity change,this paper illustrates the voltage compensation transformer differential protection TA polarity, and analyzed the calibration method.

关 键 词：特高压变压器 中性点调压 变磁通调压 调压补偿变 差动保护 TA极性 

分 类 号：TM403.9[电气工程—电器]