一起高压电抗器绕组温度异常的处理及临时监视方法
李显鹏，刘杰，顾用地，程兴民
（国网浙江省电力公司检修分公司，浙江 杭州 311232）
摘 要：变压器绕组温度因表计卡涩或附加温升回路异常时常造成温度误差过大、TA 开路等，使得现场和监控系统无法对绕组温度进行有效监视。提出一种高压电抗器绕组温度的临时监视方法，在现场油温表计上标注高压电抗器附加温升，将附加温升作为绕组温度表计的基础读数，实现绕组温度就地监视；同时监控系统的绕组温度由油温与厂家提供的附加温升或高压侧电流软件模拟附加温升取得，无需停电，即可实现高压电抗器绕组温度的就地和远方监视，实际案例验证了该方法的有效性。
关键词：高压电抗器；绕温；附加温升；临时监视方法
中图分类号：TM47 文献标识码：B 文章编号：1007-3175(2017)04-0043-03
Disposal and Temporary Monitoring Method for a Case of Abnormal Temperature in High-Voltage Reactor Winding
LI Xian-peng, LIU Jie, GU Yong-di, CHENG Xing-min
（Overhaul Branch of State Grid Zhejiang Electric Power Company, Hangzhou 311 232, China）
Abstract: Because of the metering jam or abnormal circuit of additional temperature rise, the transformer winding temperature will have big errors with open circuit to make the scene and the monitoring system unable to carry out effective monitoring for the winding temperature. This paper raised a kind of temporary monitoring method for high-voltage reactor winding temperature, labeling additional temperature rise of high-voltage reactor on site oil temperature meter. The additional temperature rise was acted as the basic reading of winding temperature metering, so as to realize the winding temperature monitoring locally, meanwhile the winding temperature of the monitoring system was provided by oil temperature or additional temperature rise of the vender, as well as the current software simulated additional temperature rise at high-voltage side, without outage, the system could realize locally and remotely monitoring the high-voltage reactor winding temperature. The practical case verifies the validity of this method.
Key words: high-voltage reactor pressure; winding temperature; additional temperature rise; temporary monitoring method
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