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公开(公告)号：US4725800A
公开(公告)日：1988-02-16
申请号：US3531
申请日：1987-01-15
CPC分类号： H01H71/2454 , H01H2071/7481 , H01H71/164 , H01H71/2472
摘要： A circuit breaker structure having a faster trip unit characterized by a circuit breaker operator and a trip unit comprising a coil, a core, and an armature, and a hold-back bracket extending from and retaining the armature in a spaced position from the core so as to cause the magnetic field lines to flow through the bracket and the armature.
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公开(公告)号：US4266210A
公开(公告)日：1981-05-05
申请号：US73821
申请日：1979-09-10
摘要： This invention relates to circuit breakers and more particularly to circuit breakers for industrial power circuits with 10,000 amp interrupting capacity and 240 V ratings. This invention provides a novel arc shield arrangement whereby two arc shields are placed in series alignment with a small air gap between the shield. The effect of this new arrangement increases the arc voltage and arc braking distance and yet the air gap is kept small enough to keep the arc within the shielding and away from other components where it can cause damage.
摘要翻译： 本发明涉及断路器，更具体地说，涉及具有10,000A中断容量和240V额定值的工业电源电路的断路器。 本发明提供一种新颖的电弧屏蔽装置，其中两个弧形屏蔽件与屏蔽件之间的小气隙串联对准。 这种新布置的效果增加了电弧电压和电弧制动距离，但是气隙保持足够小以将电弧保持在屏蔽内并远离其他可能导致损坏的部件。
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3.发明授权
公开(公告)号：US6061217A
公开(公告)日：2000-05-09
申请号：US991731
申请日：1997-12-16
申请人： Kurt A. Grunert , William E. Beatty , David H. Groves , David M. Olszewski , James P. Ellsworth , H. Richard Beck , Jere L. McKee
发明人： Kurt A. Grunert , William E. Beatty , David H. Groves , David M. Olszewski , James P. Ellsworth , H. Richard Beck , Jere L. McKee
CPC分类号： H01H71/123 , H01H71/2463 , H01H2071/124 , H01H71/28
摘要： A circuit breaker includes separable contacts for movement between a closed position and an open position to switch electrical current. An operating mechanism moves the separable contacts between the closed and open positions. A sensor senses the electrical current and outputs a sensed current signal corresponding to the electrical current. A shunt shunts a portion of the electrical current. A trip mechanism employs the sensed current signal to produce a trip signal. A trip actuator trips the operating mechanism to move the separable contacts to the open position. The trip actuator includes a trip solenoid having a coil energized by the trip signal and also includes one or more loops energized by the shunted portion of the electrical current.
摘要翻译： 断路器包括用于在关闭位置和打开位置之间移动以切换电流的可分离触点。 操作机构将可分离触点移动到闭合位置和打开位置之间。 传感器感测电流并输出对应于电流的感测电流信号。 并联分流电流的一部分。 跳闸机构使用感测的电流信号产生跳闸信号。 跳闸致动器跳闸操作机构以将可分离触点移动到打开位置。 跳闸致动器包括具有由跳闸信号激励的线圈的跳闸螺线管，并且还包括由电流的分流部分激励的一个或多个回路。
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公开(公告)号：US4077055A
公开(公告)日：1978-02-28
申请号：US696325
申请日：1976-06-15
申请人： John T. Wilson , James P. Ellsworth
发明人： John T. Wilson , James P. Ellsworth
CPC分类号： H01H71/123 , H02H3/33 , H01H71/7409 , H02H3/006
摘要： A self-powered self-contained ground fault protective device including a current monitor, an electronic circuit for amplifying the output of the current monitor, a relay connected to the amplifying circuit and adapted to operate whenever ground fault current through the current monitor rises above a predetermined level, and an interchangeable rating plug including means for activating a circuit board switch. The current monitor, amplifying circuit, and relay are all supported and enclosed by a molded insulating housing. The rating plug is inserted into a socket on the exterior of the housing.
摘要翻译： 一种自供电的独立的接地故障保护装置，包括电流监视器，用于放大电流监视器的输出的电子电路，连接到放大电路的继电器，并且适于在每当通过电流监视器的接地故障电流上升到高于 以及可互换的额定值插头，其包括用于启动电路板开关的装置。 电流监视器，放大电路和继电器均由模制绝缘外壳支撑和封闭。 额定插头插入外壳外部的插座中。
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公开(公告)号：US4419649A
公开(公告)日：1983-12-06
申请号：US318226
申请日：1981-11-04
CPC分类号： H01H71/40
摘要： A circuit breaker suitable for use on both AC and DC circuits includes a magnetically permeable core surrounding a current carrying conductor of the circuit breaker. A bimetal member is thermally coupled to the core such that induction heating of the core due to overload AC current flowing through the conductor is operative to deflect the bimetal and actuate a trip device. The circuit breaker also includes a pair of braided copper shunts connected between the conductor and the bimetal such that resistive heating of the conductor due to overload DC current flow through the breaker will cause the bimetal to deflect and actuate a trip device. The bimetal is mechanically isolated from the conductor such that relative movement therebetween will not affect thermal calibration of the circuit breaker.
摘要翻译： 适用于交流和直流电路的断路器包括围绕断路器的载流导体的导磁芯。 双金属构件热耦合到芯，使得由于过载的交流电流流过导体而引起的芯的感应加热可操作以偏转双金属并致动跳闸装置。 断路器还包括连接在导体和双金属片之间的一对编织铜分流器，使得由于过载DC电流导致的导体的电阻加热流过断路器将导致双金属板偏转并致动跳闸装置。 双金属体与导体机械隔离，使得它们之间的相对运动不会影响断路器的热校准。
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公开(公告)号：US4801772A
公开(公告)日：1989-01-31
申请号：US163354
申请日：1988-03-02
摘要： A current limiting circuit interrupter with insulating wedge characterized by a circuit interrupter structure within an insulating housing and having a mechanism for opening and closing separable contacts, the contacts being separately mounted on contact mounting arms that extend in substantially parallel spaced locations to effect current limiting relationship between the arms to cause any arc forming between the opening contacts to blow out of the contacts in a direction away from the spaced contact arms, a dielectric plate-like shutter in the plane extending between the contacts and in the direction opposite the contact arms, the shutter being movable into a gap formed between the separating contacts when the contacts separate, moving mechanism for moving the shutter when the contacts open and reset structure for retracting the shutter when the contacts close.
摘要翻译： 一种具有绝缘楔形物的限流电路断路器，其特征在于绝缘壳体内具有断路器结构，并且具有用于打开和关闭可分离触点的机构，所述触头分别安装在基本上平行间隔开的位置上延伸的接触安装臂上，以实现电流限制关系 在所述臂之间，使得所述开口触点之间的任何电弧形成在远离所述间隔开的接触臂的方向上从所述触头吹出;在所述平面中延伸的所述平面中的电介质板状挡板，并且沿与所述触点臂相反的方向延伸， 当触头分开时，挡板可移动到形成在分离触头之间的间隙中，当触头打开时移动快门的移动机构以及当触点闭合时使快门收回的复位结构。
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公开(公告)号：US4336516A
公开(公告)日：1982-06-22
申请号：US135551
申请日：1980-03-31
CPC分类号： H01H71/525 , H01H2003/3073 , H01H2300/05 , H01H3/227 , H01H71/04 , H01H71/128 , H01H71/70
摘要： A circuit breaker characterized by a toggle lock means for holding toggle springs in a charged condition ready for closing a circuit through the circuit breaker contacts when necessary.
摘要翻译： 一种断路器，其特征在于一种肘节锁定装置，用于在需要时通过所述断路器触点保持用于闭合电路的充电状态的肘节弹簧。
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公开(公告)号：US4295025A
公开(公告)日：1981-10-13
申请号：US156961
申请日：1980-06-06
CPC分类号： H01H71/2463 , H01H71/1054
摘要： This invention provides a circuit breaker comprising separable contacts, a releasable mechanism, releasable to effect a tripping operation automatically opening the contacts and an electromechanical trip means operable to release the mechanism. A shock absorbing means is also provided that effectively isolates the flux transfer and magnetic trip actuator from shock and vibration.
摘要翻译： 本发明提供了一种断路器，其包括可分离触点，可释放的机构，其可释放以实现自动打开触点的跳闸操作和可操作以释放该机构的机电跳闸装置。 还提供了一种减震装置，其有效地将磁通传递和磁脱扣致动器隔离以防止震动和振动。
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