通过更换绕组延长发电机寿命

Conference Record of the 2006 IEEE International Symposium on Electrical Insulation Pub Date : 2006-06-11 DOI:10.1109/ELINSL.2006.1665268

C. Sumereder, R. Woschitz, M. M., H. Egger, M. Marketz

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引用次数: 3

摘要

选择了两台水轮发电机来更新定子绕组。这项投资的动机是对发电机状况的专业知识。除了技术诊断外，还考虑了运行日期和维护历史以及这些发电机的年龄。定子绕组被绝缘系统所取代，该绝缘系统的优点是功率增加了10%。对老化发电棒进行了室内试验，重点研究了剩余寿命。进行了耐压试验和光学研究，并进行了统计分析。这些调查的结果证实了定子绕组更新的决定

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Extension of generator lifetime by winding renewal

Two hydro generators were chosen to renew the stator winding. The motivation of this investment was an expertise about the condition of the generators. Beside technical diagnosis the operational dates and maintenance history was taken into account as well as the age of these generators. The stator windings were replaced with an insulation system that had the benefit of a 10 % power increase. The aged generator bars were tested in laboratory with the focus on the residual lifetime. Voltage endurance tests and optical investigations were done and statistically analysed. The result of these investigations confirmed the decision of the renewal of the stator winding

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Conference Record of the 2006 IEEE International Symposium on Electrical Insulation

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