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发明名称
超小型机电式电动机保护器
摘要
超小型机电式电动机保护器涉及一种电动机保护器,其结构主要包括由电流传感器与整流桥和继电器的前置放大及功率继电器组成的二级继电器放大、驱动电路;由整流二极管、降压电阻、延时电容、延时继电器组成起动延时电路并兼作功率继电器的供电电源。优点是集电子型和机械式电动机保护器的优点于一身,体积小、功耗少、寿命长、不受温度变化和电压波动影响,装接方便,故障少。
申请公布号
CN2301005Y
申请公布日期
1998.12.16
申请号
CN97223861.1
申请日期
1997.06.09
申请人
乔强
发明人
乔强
分类号
H02H7/08
主分类号
H02H7/08
代理机构
代理人
主权项
1、超小型机电式电动机保护器涉及一种电动机保护器,在壳体[5]内设转换开关[8],其特征在于在壳体内安装整流桥[3、11]与前置继电器[4、12]组成前置放大级,再分别与电流传感器[6、9]的激励绕组并接,其动合触点并联构成或逻辑控制驱动级的功率继电器[7]的绕组;延时继电器[2]和延时电容[1]并接后再与整流二极管[14]、降压电阻[13]串接,其两组动合触点分别控制电流传感器[6、9];降压电阻与延时电容兼作驱动级的功率继电器[7]的供电电源。
地址
111000辽宁省辽阳市白塔区卫国路十二中胡同8-3号
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