核电厂辅助电源系统铁磁谐振分析及处理

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摘要某核电厂中压电气系统为6.6kV中性点不接地系统,以该电厂实际发生的一起辅助电源系统铁磁谐振实例出发,通过建模计算,剖析在外部因素的激发下电压互感器发生铁磁谐振的根本原因,并制定相应的预防措施,为核电厂安全可靠运行提供有力的外电源保障。

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	冯玉辉
	高超

关键词 ：辅助电源, 铁磁谐振, 电缆屏蔽, 分析, 处理

Abstract：The medium voltage electrical system of a nuclear power plant is a 6.6kV neutral point ungrounded system. Based on an example of a ferromagnetic resonance of an auxiliary power system that actually occurs in the power plant, through modeling calculations, the cause of ferromagnetic resonance of voltage transformer excited by external factors is analyzed. The corresponding preventive measures are formulated, which provides a strong external power supply guarantee for the safe and reliable operation of nuclear power plants.

Key words： auxiliary power ferromagnetic resonance cable shielding analysis processing

收稿日期: 2021-06-15

作者简介: 冯玉辉（1983—）,男,广东省深圳市人,本科,高级工程师、高级技师,主要从事核电厂重大设备运维管理工作。

引用本文:

冯玉辉, 高超. 核电厂辅助电源系统铁磁谐振分析及处理[J]. 电气技术, 2021, 22(12): 63-66. FENG Yuhui, GAO Chao. Analysis and treatment of ferromagnetic resonance in auxiliary power system of nuclear power plant. Electrical Engineering, 2021, 22(12): 63-66.

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http://dqjs.cesmedia.cn/CN/Y2021/V22/I12/63