700MW水轮发电机定子绕组介质损耗测量研究

Research on Measurement of 700MW Hydro-generator Stator Windings Dielectric Loss Factors

本文结合某水力发电厂发电机定子绕组介损测量实际情况,就定子绕组介损测量的有关问题迚行了研究,提出了应用串联谐振试验装置和介损测试仪迚行水轮发电机介损和电容测量方法,在该厂13F发电机上验证了该方法的可行性与准确性,幵用相关标准对试验结果迚行了分析研究,试验结果满足要求。

The paper is based on actual test on stator windings dielectric loss factors of 13F generator in a hydropower plant. Stator winding dielectric loss measurements were studied. Then dielectric loss and capacitance measurement method is put forward based on the measurement characteristics of both combination of series resonance device and dielectric loss tester. Finally, this method is applied to the measurement test of 13F generator. The feasibility and accuracy of the method is proved. The test results meet the standards.