DLT 492-1992 发电机定子绕组环氧粉云母绝缘老化鉴定导则

DL/T492-921992-09-241993-01-0111.11.21.3(20)24%5%1%2%6()100MW3()a.30()b.c.d.14111.()tgtgn(kV)tg(%)tgn(%)615.7567tgUntgtg02.tgtgntg(%)tgn(%)(kV)0.2Un0.8Un0.2UnUn615.75235()1g0.2Un1.0Un0.8Un0.8Un0.6Un0.6Un0.4Un0.4Un0.2Untg1.2.tg3.tg3%4%4.()tgtgn1.()(kV)(%)615.7582.(kV)(%)615.7510()1.2.%10000n×−=∆CCCCCnC01.(kV)3nU(C)615.751×10-8()2.(34)×10-8C()55.15.1.1(1)1(a)()(b)()(c)()Ck(5002000pF)CxC(10002000pF)VL()ZmMTVTVR5.1.2a.b.0.1s1001000sc.CCCCkxkx+d.e.5.25.2.13tg5.2.2Un0.2Untg1.0Un0.8Un0.8Un0.6Un0.6Un0.4Un0.4Un0.2UntgtgUntgntgδ0____________________