在役汽轮发电机中，基于放电事件在线监测的定子绕组失效风险最小化

Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264) Pub Date : 2001-10-16 DOI:10.1109/EEIC.2001.965724

Y. Aksenov

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引用次数: 4

摘要

给出了汽轮发电机绝缘在线诊断的结果。讨论了保证1000mva、500mva、220mva、120mva、60mva发电机可靠性的措施。给出了各种类型绝缘发生故障的特征。部分放电位置的结果使用离线诊断提供。将定子绕组失效风险最小化的方法已被证明是成功的，没有后续故障:(i)大约70台涡轮发电机没有缺陷;(ii) 4台机芯带电弧;(iii) 6台投料机;(四)15种不同绝缘。

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In service turbine generators stator windings failure risks minimization on the base of discharge events on-line monitoring

Results of the on-line insulation diagnostic of turbine generators are provided. Measures taken to ensure the reliability of 1000, 500, 220, 120 and 60 MVA generators are discussed. Features of faults that occurred in the various types of insulation are given. Results of the partial discharge locations using off-line diagnostics are provided. The approach for stator windings failure risks minimization has been demonstrated to be successful without subsequent failure: (i) about 70 turbine generators with no defects; (ii) 4 machines with arcing in core; (iii) 6 machines with slot discharges; and (iv) 15 with different insulation.

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Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264)

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