绝缘材料
絕緣材料
절연재료
INSULATING MATERIALS
2015年
1期
37-42
,共6页
刘君%谢方%闵英杰%胡琳
劉君%謝方%閔英傑%鬍琳
류군%사방%민영걸%호림
电介质频率响应%复电容%油纸绝缘%弛豫模型
電介質頻率響應%複電容%油紙絕緣%弛豫模型
전개질빈솔향응%복전용%유지절연%이예모형
dielectric frequency response%complex capacitance%oil-paper insulation%relaxation model
为将电介质频率响应法推广应用于变压器绝缘状态评估，利用电介质频率响应法对110 kV及220 kV油浸式变压器高压-低压套管之间的油纸绝缘系统进行电介质响应测试；建立RC弛豫模型解析变压器油纸绝缘体系的绝缘性能，并通过最佳优化方法获得模型参数。结果表明：良好的绝缘体系使得各支路绝缘电阻增大，时间常数减小。
為將電介質頻率響應法推廣應用于變壓器絕緣狀態評估，利用電介質頻率響應法對110 kV及220 kV油浸式變壓器高壓-低壓套管之間的油紙絕緣繫統進行電介質響應測試；建立RC弛豫模型解析變壓器油紙絕緣體繫的絕緣性能，併通過最佳優化方法穫得模型參數。結果錶明：良好的絕緣體繫使得各支路絕緣電阻增大，時間常數減小。
위장전개질빈솔향응법추엄응용우변압기절연상태평고，이용전개질빈솔향응법대110 kV급220 kV유침식변압기고압-저압투관지간적유지절연계통진행전개질향응측시；건립RC이예모형해석변압기유지절연체계적절연성능，병통과최가우화방법획득모형삼수。결과표명：량호적절연체계사득각지로절연전조증대，시간상수감소。
In order to apply dielectric frequency response method to assess the transformer insulation condition, we used dielectric frequency response method to measure the dielectric response of oil-paper insulation system between high voltage and low voltage bushings of 110 kV and 220 kV oil-immersed transformers. A RC relaxation model was established to analyze the insulating properties of the transformer oil-paper system, and the model parameters were obtained by the best optimization method. The results show that the good insulation system would make insulation resistance in each branch increase and the time constant decrease.
