|
|
|
| Research of Solving Large Transformer DC Resistance of Low Voltage Winding Testing Time Consuming Problem |
| Qu Xiaofeng, Li Yikai |
| Maintenance and Test Center of Power Generation Company CSG, Guangzhou 510000 |
|
|
|
|
Abstract This paper Introduced the basic principle of measurement on dc resistance of power transformer winding. Low voltage winding DC resistance measuring test is time consuming in the processing of 500kV main Transformer preventive test. This phenomenon is analyzed in theory, and verified by three methods, there are high voltage winding short circuit and grounding method, high voltage winding open circuit method, and saturable magnetic circuit method. This thesis concluded the most effective method to reduce the time consuming in this test.
|
|
Published: 20 November 2015
|
|
|
|
| Cite this article: |
|
Qu Xiaofeng,Li Yikai. Research of Solving Large Transformer DC Resistance of Low Voltage Winding Testing Time Consuming Problem[J]. Electrical Engineering, 2015, 16(11): 12-15.
|
|
|
|
| URL: |
|
http://dqjs.cesmedia.cn/EN/Y2015/V16/I11/12
|
[1] 王朗珠, 姚一平. “助磁法”在大型变压器低压侧直 流电阻测试中的运用[J]. 高压电器, 2003, 39(2): 59-60.
[2] 曾国宏, 王立文, 田大文. 电力变压器直流电阻测试仪的设计与研究[J]. 电测与仪表, 1999, 36(3): 9-13.
[3] 管金云, 刘原. 变压器绕组直流电阻快速测试方法[J]. 南华大学学报(自然科学版), 2004, 18(3): 88-91.
[4] 刘凯. 新型电力变压器绕组直流电阻速测仪的研制[D]. 武汉: 武汉大学, 2004.
[5] 王亮. 电力变压器直流电阻快速测量的研究[D]. 保定: 华北电力大学, 2002.
[6] 林春耀. 大型变压器直流电阻的快速测量法及注意事项[J]. 广东电力, 1997(2): 38-39, 23.
[7] 冯勇. 浅谈缩短测量大容量变压器绕组直流电阻时间的几种方法[J]. 湘钢科技, 2002(4): 39-41.
[8] 高景德, 张磷征. 电机过渡过程的基本理论及分析方法-上册[M]. 北京: 科学出版社, 1982.
[9] 西南电业管理局试验研究所. 高压电气设备试验方法[M]. 北京: 水利电力出版社, 1984.
[10] 梁志瑞, 甄旭锋, 牛胜锁. 大型电力变压器低压侧绕组直流电阻测试新方法[J]. 电力自动化设备, 2007, 27(6): 27-31. |
|
|
|
2015, Vol. 16 
