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发明名称
熔丝断相保护器
摘要
本实用新型是为三相异步电动机改进的熔丝断相保护器,机械式,配合交流接触器使用,属于异步电动机控制部分。本实用新型解决了交流接触器(线圈额定电压380伏)因中间相保险丝熔断(接接触器线圈以外的另一相)异步电动机断相运行而烧坏问题。本实用新型适合于电源380伏中小型异步电动机,它是保险丝、电阻和固定板、细线绳、微动开关、接线柱组成。该实用新型特点:熔丝熔断,电阻瞬间发红,高温把线绳烧断,线绳一断拉杆失去拉力,微动开关触点断开,接触器线圈失去电源,使接触器动作,切断电源,保护电机。
申请公布号
CN2064125U
申请公布日期
1990.10.17
申请号
CN90202588.0
申请日期
1990.03.05
申请人
徐国良
发明人
徐国良
分类号
H02H7/09;H01H37/76
主分类号
H02H7/09
代理机构
代理人
主权项
1、一个由保险丝(3)、电阻(4)、固定板(2)、细线绳(5)、微动开关(6)组成的断相保护装置,其特征细线绳一端由罗丝固定,另一端跨过电阻和保险丝固定在微动开关拉杆上。
地址
黑龙江省友谊县乳品厂
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