1000kV变电站调压补偿变压器差动保护配置分析  

Analysis of Differential Protection Configuration of Regulation-Compensation Transformer in 1000kV Substation

作　　者：刘春晖 张翔宇 刘卫明 杨朋威 张平 

机构地区：[1]国网内蒙古东部电力有限公司电力科学研究院,呼和浩特010020 [2]浙江海洋大学东海科学技术学院,浙江舟山316000

出　　处：《内蒙古电力技术》2017年第2期41-44,共4页Inner Mongolia Electric Power

摘　　要：锡盟1000kV变电站1000kV变压器调压方式为中性点无励磁调压,采用主变压器和调压补偿变压器相互独立,调压变压器和补偿变压器共体的结构,主体变压器与调压补偿变压器连接为一体。较传统变压器,其结构独特,且增加了调压补偿变压器差动保护,保护逻辑在主变压器调压档位变换过程中随着电流方向改变而变化。对此本文分析了1000kV调压补偿变压器差动保护配置及TA极性配置。通过调压补偿变压器差动保护现场校验,表明该调压补偿变压器差动保护配置满足TA极性要求。The voltage regulation method of 1000 kV transformer in Xilin Gol 1000 kV suhstation is neutral point off-circuit-tap-changing regulation. The main transformer and the regulation-compensation transformer are mutual independent, the regulation transformer and the compensation transformer came into one. Compared with the traditional transformer, the structure is unique, with regulation-compensation transformer differential protection, through which the protection logic changes with the electric current change during the change of the main transfrmer regulation gears. The differential protection and TA polarity configuration of 1000 kV regulation-compensation transformer is analyzed. Besides, the field test method for differential protection of regulation-compensation transformer is studied. The results of fieht test shows that the differential protection of regulation-compensation transformer meets the requirements of TA polarity.

关 键 词：1000KV变电站 调压补偿变压器 调压方式 差动保护 TA极性 

分 类 号：TM41[电气工程—电器] TM77