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1. 发明授权

US4129843A Magnetic trip means for circuit breaker 失效
标题翻译：断路器的磁跳闸装置
公开(公告)号：US4129843A
公开(公告)日：1978-12-12
申请号：US729699
申请日：1976-10-05
申请人： Frank R. Keller , John B. Cataldo , Frank W. Kussy , Bernard DiMarco
发明人： Frank R. Keller , John B. Cataldo , Frank W. Kussy , Bernard DiMarco
IPC分类号： H01H71/34 , H01H71/74 , H01H9/00
CPC分类号： H01H71/345 , H01H71/7409
摘要： A magnetic trip means for automatically opening a circuit breaker contact upon the occurrence of predetermined fault current conditions is constructed of a stationary yoke, an armature biased away from the yoke and movable toward the yoke for tripping of the switch, an actuating coil in series with the contacts, and a sealed capsule coaxial with the coil for obtaining selected tripping characteristics. Within the sealed capsule there is a movable magnetic core biased to a normal position extending substantially outside the coil. The core is movable inside of the coil toward the armature upon the occurrence of overload current conditions with movements of the core toward the armature being retarded in a controlled manner. Control is obtained by closely spacing the outer cylindrical wall of the core and the inner cylindrical wall of the capsule, and additionally by utilizing a viscous fluid within the capsule. For a given overload current, as the core moves closer to the armature there is an increased force acting to move the armature toward tripping position.
摘要翻译：用于在发生预定故障电流条件时自动断开断路器触点的磁跳闸装置由静止磁轭构成，电枢偏离磁轭偏置并且可朝向磁轭移动以使开关跳闸，致动线圈与触点，以及与线圈同轴的密封胶囊，用于获得选定的脱扣特性。在密封的胶囊内，有一个可移动的磁芯偏置到基本上在线圈外部延伸的正常位置。在发生过载电流条件时，铁芯可以在线圈内部向电枢移动，由此铁芯朝向电枢的移动以受控的方式延迟。通过将芯的外圆筒壁和胶囊的内圆柱壁紧密地间隔开，并且另外通过利用胶囊内的粘性流体来获得控制。对于给定的过载电流，随着磁芯更靠近电枢，增加了作用以将电枢移动到跳闸位置的力。

2. 发明授权

US3987382A Unitized motor starter 失效
标题翻译：单元电机起动器
公开(公告)号：US3987382A
公开(公告)日：1976-10-19
申请号：US598052
申请日：1975-07-22
申请人： John B. Cataldo , Frank W. Kussy , Frank R. Keller
发明人： John B. Cataldo , Frank W. Kussy , Frank R. Keller
IPC分类号： H01H3/00 , H01H71/12 , H01H71/74 , H01H77/10 , H01H89/06 , H01H73/00 , H01H83/00
CPC分类号： H01H71/121 , H01H71/7409 , H01H77/10 , H01H89/06
摘要： A unitized combination motor starter is provided with a single insulated housing wherein a plurality of pole units are disposed side-by-side. Each pole unit includes a circuit breaker contact section and a contactor contact section. A spring powered mechanism for circuit breaker operation is disposed on one side of the pole units and an electromagnet for contactor operation is disposed on the other side of the pole units. The current carrying elements of each pole unit are arranged to provide a current loop having relatively close opposing arms so that large mechanical forces accompany high magnitude current flow. These forces are directed so as to produce a blow-off effect at the circuit breaker contacts, resulting in current limiting action to protect the contactor contacts. A removable and replaceable overload sensing electromagnet is provided for each of the pole units, and the coils thereof are of relatively high impedance to act as a current limiter during short circuit conditions to thereby protect heaters of overload relays connected in series with the unitized combination.
摘要翻译：单元组合电动机起动器设置有单个绝缘壳体，其中多个极单元并排布置。每个极单元包括断路器接触部分和接触器接触部分。用于断路器操作的弹簧动力机构设置在极单元的一侧，并且用于接触器操作的电磁体设置在极单元的另一侧。每个极单元的电流承载元件布置成提供具有相对较靠近的相对臂的电流回路，使得大的机械力伴随着高电流的流动。引导这些力以便在断路器触点处产生泄流效应，从而产生限流作用以保护接触器触点。为每个极单元提供可移动和可更换的过载感测电磁体，并且其线圈具有相对较高的阻抗，以在短路条件期间用作限流器，从而保护与单元化组合串联连接的过载继电器的加热器。

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