1000kV特高压主变压器冷却器逐台启动回路改造  

Control Circuit Modification for 1000 kV Main Transformer,s Air Cooling Devices Being Started up One by One

作　　者：李东敏[1] 成小胜[1] 张鹏[1] 

机构地区：[1]国网山西省电力公司检修公司,山西长治046000

出　　处：《山西电力》2015年第3期8-11,共4页Shanxi Electric Power

摘　　要：根据《国家电网公司十八项电网重大反事故措施》的新要求,阐述了1 000 kV特高压主变压器冷却器控制回路的现状,分析了目前控制回路中存在的问题,在原有控制回路功能均不改变的前提下,提出了在控制回路中增加方式压板和时间继电器的新方法,解决了现有控制回路不能满足反措新要求的问题,消除了主变压器存在的不能安全运行的隐患,为后续特高压主变压器冷却器的生产和现场改造提供了借鉴和参考。According to the new provision of Eighteen Important Counter-accident Measures of State Grid, in this paper the situation of 1 000 kV UHV main transformer cooling-device control circuit is elaborated, and the current problems in the control circuit are analyzed. On the premise of remaining the original function of the control circuit, a new method to increase square boards and time relays in the control circuit is put forward. Through modification, the existing control circuit can meet the requirements of the Couter-accident Measures, and safe operation is ensured, which provides references for the production and modification of UHV main transformer cooling-device.

关 键 词：1000 kV特高压主变压器 冷却器 间隔启动 方式压板 

分 类 号：TM401.2[电气工程—电器]