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在大型水轮发电机组的安装电气试验项目中,有转子磁极绕组的交流阻抗试验,其目的是通过各个磁极绕组的交流阻抗比较,发现交流阻抗很低的磁极绕组有否匝间短路的可能性。在龙羊峡一号发电机(该机共有48个磁极)转子磁极绕组交流阻抗试验中发现第12号磁极绕组的交流阻抗比第10号
In large-scale hydropower installation of electrical test project, the rotor pole windings AC impedance test, the purpose is through the comparison of the AC windings of each pole windings and found that AC low impedance pole windings have the possibility of inter-turn short circuit . In the Longyang Gap 1 generator (the machine a total of 48 poles) rotor pole winding AC impedance test found that the 12th pole winding AC impedance than No. 10