CAJ | 학술논문

将已经运行23年的300 M W水-氢-氢汽轮发电机和相同类型的新机组定子绕组老化状态进行对比。由于水氢氢汽轮发电机定子绕组运行温度远低于其绝缘系统的耐热等级，故与温度因子相比，电因子成为绝缘老化的主要影响因素。电老化过程中定子绕组绝缘的剩余击穿电压不随老化过程线性下降，而是呈幂函数下降。
장이경운행23년적300 M W수-경-경기륜발전궤화상동류형적신궤조정자요조노화상태진행대비。유우수경경기륜발전궤정자요조운행온도원저우기절연계통적내열등급，고여온도인자상비，전인자성위절연노화적주요영향인소。전노화과정중정자요조절연적잉여격천전압불수노화과정선성하강，이시정멱함수하강。
Comparison between results of aging test on a new generator and those of an old one already running over 23 years was performed. Because the actual operation temperature was far lower than that of the insulation system thermal class, the electric element became the main factor to influence the insulation aging compared with the thermal factor. The residual breakdown voltage of the stator insula-tion fell as a power law rather than a linear function during electric aging.