2.2.12 渗油与套管闪烙............................................................................................9
2.2.13 变压器雷击故障............................................................................................9
2.2.14 变压器线路涌流故障....................................................................................9
2.2.15 变压器质量疏漏故障..................................................................................10
2.2.16 变压器的维护故障......................................................................................10
2.2.17 磁路故障......................................................................................................10
2.2.18 变压器受潮故障..........................................................................................10
2.2.19 变压器破坏与故意损坏..............................................................................10
2.2.20 变压器连接松动故障..................................................................................10
2.3 结论.......................................................................................................................10
2.4 本章小结...............................................................................................................11
第 3 章 变压器油中溶解气体与故障的关系............................................................................11
3.1 变压器油中溶解气体的来源...............................................................................12
3.2 变压器油中气体特征...........................................................................................12
3.2.1 过热故障........................................................................................................12
3.2.2 放电故障........................................................................................................12
3.2.3 受潮................................................................................................................12
3.3 变压器故障诊断的依据.......................................................................................13
3.4 变压器部绝缘故障的三比值法...........................................................................13
3.5 小结.......................................................................................................................15
第 4 章 灰色 GM(1,1)预测方法.................................................................................................15
4.1 灰色预测简介.......................................................................................................15
4.2 GM(1,1)数据处理方法......................................................................................15
4.3 GM(1,1)等时间间隔序列预测算法.....................................................................16
4.4 GM(1,1)非等时间间隔序列预测算法.................................................................20
4.5 GM(1,1)算法残差检验.........................................................................................21
4.6 GM(1,1)非等时间间隔 matlab 程序代码.............................................................21
4.7 本章小结...............................................................................................................23
第 5 章 变压器的故障预测与实例............................................................................................23
5.1 变压器的故障预测...............................................................................................23
5.2 基于油中溶解气体数据的变压器故障预测.......................................................23
5.2.1 实例 1.............................................................................................................23
5.2.2 实例 2.............................................................................................................24
5.3 误差检验...............................................................................................................25
5.4 本章小结...............................................................................................................25
第 6 章 结论与展望...................................................................................................................25
6.1 结论.......................................................................................................................25
6.2 展望.......................................................................................................................26
V / 38