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                JDY-5000型电压继电器概述

              2. JDY-5000型电压继电器为瞬时动作特性,用于发电机,变压器,输电线路的继电←保护装置中作为过压或欠压的闭锁启动元件。具有精度高、功耗小、动作时间短、返回系数高、整定直观方便、范围宽等特点。