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通过白山发电厂红石站两机送一变,一机装有消弧线圈接线实例,分析发变组微机保护在实际应用中出现的定子接地保护和励磁变差动保护误动情况,利用实测数据进行分析计算,找出保护误动的原因并根据分析计算结果选择处理方法。彻底解决定子接地保护和励磁变差动保护误动问题,以此提高发变组微机保护应用水平和解决问题的能力。
Through the Baishan power plant Hongshi station two machines to send a change, a machine equipped with arc suppression coil connection example, analysis of transformer substation microcomputer protection in the practical application of stator grounding protection and excitation variation differential protection malfunction, the use of measured Data analysis and calculation to find out the reasons for the protection of misconduct and analysis and calculation results based on the choice of approach. Completely solve the stator ground protection and excitation variable differential protection malfunction, in order to improve the level of computer application of transformer protection and the ability to solve problems.