内蒙古电力技术2023，Vol.41Issue(6)：90-95,6.DOI:10.19929/j.cnki.nmgdljs.2023.0090
300 Mvar空冷调相机转子一点接地保护跳闸故障分析
Analysis on Tripping Fault of One-Point Grounding Protection of 300 Mvar Air-Cooled Synchronous Condenser Rotor
张冲 1赵强 1高树永 1李延钊 1安卫民 1刘志远1
作者信息
- 1. 国网内蒙古东部电力有限公司内蒙古超特高压分公司,内蒙古 锡林浩特 026000
- 折叠
摘要
Abstract
Aiming at the fault of the rotor of 300 Mvar air-cooled synchronous condenser in a plant,the author analyzes the cause of the fault in detail by field inspection,disassembly,chemical composition analysis,mechanical property test,metallographic structure analysis,fracture morphology analysis,temperature field simulation and other relevant simulations and tests.The results indicate that there is a suspended area between the lead and the insulation box near the compression area of the connecting screw,which requires to be filled with insulation pads.However,during the assembly process,the insulation pads do not fully fill the area,resulting in the lead being suspended and eventually breaking under the long-term action of centrifugal force.Therefore,it is recommended to optimize the insulated gasket structure of rotor leads and strengthen the quality control of the assembly process,clarify the process quality standards and inspection standards,and avoid the recurrence of similar faults.关键词
调相机/转子一点接地/绝缘配垫/温度场仿真/引线断裂Key words
synchronous condenser/rotor one-point grounding/insulated gasket/temperature field simulation/lead fracture分类
动力与电气工程引用本文复制引用
张冲,赵强,高树永,李延钊,安卫民,刘志远..300 Mvar空冷调相机转子一点接地保护跳闸故障分析[J].内蒙古电力技术,2023,41(6):90-95,6.
