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                导纳型失磁保护校验方法探讨

                2014年核电站新技术交流研讨会

                视频信息
                讲座名称:导纳型失磁保护校验方法探讨
                报告人:陈寿根高工
                报告单位:中广核工程公司
                讲座时长:17:48
                内容简介:
                中广核工程公司高工陈寿根发表“导纳型失磁保护校验方法探讨”演讲。发电机失磁是指发电机运行时失去励磁电流,导纳型失磁保护的定值轨迹是4条导纳射线和一条←直线,在导纳平面内伸向无穷远,校验定值时无法验证整个导纳轨迹。目前的校验方法是手动验证失磁保护的几个动作点,但是动作点是否在导纳定值轨迹上没有验证。新方法将导纳定值转换为阻抗定值,即将导纳平面内的导纳轨迹转换为阻抗平面内的阻抗轨迹,再用博电继保仪自动测出阻抗圆∑ 的动作轨迹,也就验证了整个导々纳定值轨迹。新方法理论推导严密,在多套保护装置上得到实际验证。
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