运行变压器油剩余使用寿命评估方法研究  

EVALUATION METHOD FOR RESIDUAL SERVICE LIFE OF TRANSFORMER OIL IN OPERATION

作　　者：冯丽苹[1] 李烨峰[1] 陈朝晖[2] 肖秀媛[1] 汪长春[2] 孙云[2] 

机构地区：[1]西安热工研究院有限公司,陕西西安710032 [2]大亚湾核电运营管理有限责任公司,广东深圳518124

出　　处：《热力发电》2011年第5期27-29,共3页Thermal Power Generation

摘　　要：通过对某电站新变压器油和运行变压器油在100℃、110℃和120℃下的氧化诱导期和老化过程中界面张力进行连续不断的测试,并对测试结果进行回归处理,提出了在试验室中对运行变压器油进行剩余使用寿命评估的方法,其评估模型为:N=t÷{(T-t)÷n}。经实际应用证明,所提出的运行变压器油剩余使用寿命的评估方法评估结果与变压器油实际剩余寿命相符。Through continuous and unceasing test and measurement of interfacial tension of new transformer oil and transformer oil in operation during the aging process,and test of the induced period to oxidation under temperature of 100 ℃,110 ℃ and 120 ℃,the results of test have been regressively processed,an evaluation method in laboratory for residual service life of transformer oil in operation being put forward,its evaluation model being N=t÷{（T-t）÷n}.The practical application of said evaluation method shows that the result of evaluation tallies well with the actual residual service life of transformer oil.

关 键 词：变压器油 寿命评估 诱导期 界面张力 

分 类 号：TM855[电气工程—高电压与绝缘技术]