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公开(公告)号：US4006439A
公开(公告)日：1977-02-01
申请号：US612608
申请日：1975-09-11
CPC分类号： H01H73/045
摘要： A circuit interrupter particularly suitable for use in an oil filled distribution transformer having an elongated contact arm pivotable about one end with a movable contact attached to the other end through suitable insulating members to electrically isolate the movable contact from the elongated contact arm. The movable contact is a bridging contact for completing a series circuit through two stationary contacts. The movable bridging contact is spring biased away from the elongated contact arm. A retainer restricts the movement of the bridging contact away from the insulating members attached to the elongated contact arm. The biasing spring is disposed between the insulating members and the retainer. Grooves formed in the sides of the insulating members restrict rotational movement of the retainer and bridging contact. For larger circuit interrupters, a bridging contact assembly can be utilized having a plurality of parallel bridging contacts and a plurality of biasing springs. The elongated contact arm is biased towards an open position when the bridging contact is separate from the stationary contacts, but with the circuit interrupter in the normally closed position is held in a closed position wherein the bridging contact is in engagement with the stationary contact. A latching mechanism which is responsive to a bimetal or magnetic trip to allow the circuit breaker to trip open during overload conditions, holds the elongated contact arm in the closed position.
摘要翻译： 一种特别适合用于装油配电变压器的电路断路器，其具有可绕一端枢转的细长接触臂，可动接触件通过适当的绝缘构件连接到另一端，以将活动接触件与细长接触臂电隔离。 可移动触点是用于通过两个固定触点完成串联电路的桥接触点。 可移动桥接触头被弹簧偏压远离细长接触臂。 保持器限制桥接接触件远离附接到细长接触臂的绝缘构件的移动。 偏置弹簧设置在绝缘构件和保持器之间。 在绝缘构件的侧面形成的沟槽限制保持器的旋转运动和桥接接触。 对于较大的电路断路器，可以使用具有多个平行桥接触点和多个偏置弹簧的桥接触头组件。 当桥接触头与固定触点分开时，细长的接触臂被偏置到打开位置，而处于常闭位置的电路断路器保持在关闭位置，其中桥接触头与固定触点接合。 响应于双金属或磁性跳闸以允许断路器在过载状态下跳闸打开的闭锁机构将细长接触臂保持在关闭位置。
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公开(公告)号：US3983454A
公开(公告)日：1976-09-28
申请号：US496800
申请日：1974-08-12
申请人： John F. Cotton , Jack G. Hanks , Raymond E. Wien
发明人： John F. Cotton , Jack G. Hanks , Raymond E. Wien
IPC分类号： H01F30/00 , H01H71/10 , H01H71/46 , H01H71/74 , H01H73/14 , H01H73/24 , H01H73/38 , H01H73/50 , H02H7/04 , H01H75/00
CPC分类号： H01H73/14 , H01H71/46 , H01H71/7436 , H01H73/50
摘要： A distribution transformer having a secondary circuit breaker utilizing a movable bridging contact between two stationary contacts for completing a series circuit therethrough. The movable bridging contact is spring biased towards an open position separated from the stationary contacts, but with the circuit breaker in the normally closed position is held in engagement with the stationary contacts by a latching mechanism which is responsive to a bimetal or magnetic trip element to allow the circuit breaker to trip open during overload conditions. The conducting bridging contact completes a series circuit through the circuit breaker which opens during circuit interruption. The secondary circuit breaker can also, if desired, be provided with a signal-light circuit which activates a signal light, on the exterior housing of the transformer, when current through the circuit breaker exceeds a low signal overload value which is less than the trip value. The signal light circuit is reset by turning the operator handle, which is located on the transformer housing, past the on position away from the off position. An emergency overload control is provided for increasing the tripping level of the circuit breaker during selected overload periods. The bridging contact is disposed near the end of an elongated operating arm which is linked to the circuit breaker operating mechanism. A plurality of poles are operated utilizing only one operating mechanism by connecting the elongated operating arms with a strong metallic member for simultaneous operation of all poles. The single signal light provided for each multi-pole circuit breaker can be activated by the bimetals of any one of the individual poles.
摘要翻译： 一种配电变压器，其具有利用两个固定触点之间的可移动桥接触点的次级断路器来完成串联电路。 可移动桥接触头被弹簧偏压到与固定触点分开的打开位置，但是处于常闭位置的断路器通过闭锁机构保持与固定触点接合，闩锁机构响应于双金属或磁跳闸元件 允许断路器在过载条件下跳闸。 导通桥接触点通过断路器完成串联电路，断路器在电路中断期间打开。 如果需要，次级断路器还可以设置有信号灯电路，该信号灯电路在变压器的外部壳体上激活信号光，当电流通过断路器超过小于该跳闸的低信号过载值时 值。 通过转动位于变压器外壳上的操作手柄将信号灯电路复位，使其远离关闭位置。 提供紧急过载控制，用于在选定的过载时段期间增加断路器的跳闸电平。 桥接触点设置在连接到断路器操作机构的细长操作臂的端部附近。 通过将细长操作臂与强金属构件连接起来，仅使用一个操作机构来操作多个杆，用于同时操作所有极。 为每个多极断路器提供的单个信号灯可以由单个极中的任一个的双金属激活。
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3.发明授权
公开(公告)号：US4030053A
公开(公告)日：1977-06-14
申请号：US612527
申请日：1975-09-11
申请人： John F. Cotton , Jack G. Hanks , Raymond E. Wien
发明人： John F. Cotton , Jack G. Hanks , Raymond E. Wien
CPC分类号： H01H33/68
摘要： An oil filled distribution transformer having a secondary circuit breaker utilizing a cantilevered stationary contact which is engaged by a movable contact for completing a series circuit therethrough. The cantilevered exposed stationary contact, which is surrounded by insulating oil, allows the oil in the transformer to rapidly return to the contact area after circuit interruption providing for faster arc extinction. The movable contact can be a bridging contact which forms a circuit between the cantilevered stationary contact and a second stationary contact mounted above a support base. The movable bridging contact is spring biased toward an open position separated from the stationary contact, but with the circuit breaker in the normally closed position is held in engagement with the stationary contact by a latching mechanism which is responsive to a bimetal or magnetic trip to allow the circuit breaker to trip open during overload conditions. The front cantilevered contact is completely surrounded by oil. During circuit interruption the oil in the contact area vaporizes forming an arc bubble of gas. Exposing the contact to allow free flow of oil into the area of the arc bubble allows for faster arc extinction and circuit interruption under fault conditions.
摘要翻译： 一种充油配电变压器，其具有利用悬臂固定触头的二次断路器，所述二次断路器由可动触点接合以完成通过其中的串联电路。 由绝缘油包围的悬臂暴露的固定触点允许变压器中的油在电路中断后快速返回到接触区域，以提供更快的电弧消光。 可移动接触件可以是桥接接触件，其在悬臂固定接触件和安装在支撑基座上方的第二固定接触件之间形成电路。 可移动桥接触头被弹簧偏压到与固定触点分开的打开位置，但是处于常闭位置的断路器通过闭锁机构保持与固定触点接合，闩锁机构响应于双金属或磁性跳闸以允许 断路器在过载条件下跳闸打开。 前悬臂式接触器完全被油包围。 在电路中断期间，接触区域中的油气化形成气泡的气泡。 暴露接触以允许自由流入电弧气泡的区域允许在故障条件下更快的消弧和电路中断。
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公开(公告)号：US3997857A
公开(公告)日：1976-12-14
申请号：US612609
申请日：1975-09-11
申请人： Raymond E. Wien , John F. Cotton , Jack G. Hanks
发明人： Raymond E. Wien , John F. Cotton , Jack G. Hanks
CPC分类号： H01H71/40
摘要： A circuit interrupter having a magnetic trip element which is integral with the latch. The disclosed circuit interrupter is provided with a bimetal and a magnetic trip element directly connected to the latch of the circuit interrupter which is drawn towards the bimetal, unlatching the circuit interrupter when current flow therethrough exceeds a high overload level. The disclosed circuit interrupter is particularly adaptable for use on a distribution transformer. A movable bridging contact for completing a series circuit between two stationary contacts is provided. The movable bridging contact is spring biased towards an open position separated from the stationary contacts, but with the circuit interrupter in the normally closed position is held in engagement with the stationary contacts by a latching mechanism which is responsive to the bimetal or magnetic trip element to allow the circuit breaker to trip open during overload conditions. The magnetic trip element is formed integral with the latching mechanism to reduce time delay before operation. A plurality of poles are operated using only one operating mechanism by connecting the elongated operating arms with a strong metallic member for simultaneous operation of all poles. The bridging contact is disposed near the end of an elongated operating arm which is linked to the circuit breaker operating mechanism. Each pole of the circuit interrupter is provided with a bimetallic trip element. The magnetic trip element can be formed from a single piece having a plurality of legs each disposed in proximity with the bimetal of one pole.
摘要翻译： 具有与锁存器成一体的磁脱扣元件的断路器。 所公开的电路断路器设置有直接连接到电路断续器的闩锁的双金属和磁跳闸元件，该电池断路器被拉向双金属片，当电流流过其超过高过载水平时解锁电路断续器。 所公开的断路器特别适用于配电变压器。 提供了用于完成两个固定触点之间的串联电路的可移动桥接触点。 可移动桥接触头被弹簧偏压到与固定触点分开的打开位置，但是处于常闭位置的断路器通过闭锁机构保持与固定触点接合，闭锁机构响应于双金属或磁脱扣元件 允许断路器在过载条件下跳闸。 磁脱扣元件与闭锁机构一体形成，以减少操作前的时间延迟。 使用仅一个操作机构来操作多个磁极，通过将细长的操作臂与强金属部件连接以同时操作所有电极。 桥接触点设置在连接到断路器操作机构的细长操作臂的端部附近。 断路器的每个极都设有双金属跳闸元件。 磁跳闸元件可以由具有多个支脚的单件形成，每个支脚均设置在一个极的双金属附近。
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公开(公告)号：US4489299A
公开(公告)日：1984-12-18
申请号：US461795
申请日：1983-01-28
申请人： Raymond E. Wien , Jack G. Hanks , John F. Cotton
发明人： Raymond E. Wien , Jack G. Hanks , John F. Cotton
CPC分类号： H01H71/505 , H01H71/525
摘要： A secondary circuit breaker for a distribution transformer characterized by electrical inductive apparatus within an oil-filled housing, and circuit interrupter for controlling current flow through the transformer and comprising a releasable latch arm, trip means operable upon overload conditions to release the latch arm, a latch lever between the trip means and the latch arm and comprising the only operable part therebetween, and the latch lever having a cam surface for latching and unlatching the releasable arm.
摘要翻译： 一种用于配电变压器的次级断路器，其特征在于在充油壳体内的电感设备，以及用于控制通过变压器的电流的电路断续器，并且包括可释放的闩锁臂，可在过载条件下操作以释放闩锁臂的跳闸装置， 闩锁杆在跳闸装置和闩锁臂之间并且包括其间的唯一可操作部件，并且闩锁杆具有用于闩锁和解锁可释放臂的凸轮表面。
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公开(公告)号：US4119935A
公开(公告)日：1978-10-10
申请号：US734069
申请日：1976-10-20
CPC分类号： H01H71/505 , H01H2071/508 , H01H73/045
摘要： A circuit interrupter including a releasable latch restrained by a stamped metal rotatable cam having a latching surface in sliding contact with the latch member. The rotatable cam is inclined at an angle to the axis of rotation so as to cause only the smooth portion of the latching surface produced by the shearing action of the stamping process to contact the latch member. The rough portion of the latching surface produced by tearing action of the stamping process is not in contact with the latch member, thereby eliminating the need for a machining operation to provide a low friction contact surface with the latch member.
摘要翻译： 一种电路断路器，其包括由冲压的金属可旋转凸轮限制的可释放闩锁，该凸起具有与闩锁构件滑动接触的闩锁表面。 可旋转凸轮与旋转轴线成一定角度倾斜，从而仅使由冲压过程的剪切作用产生的闩锁表面的平滑部分接触闩锁构件。 通过冲压过程的撕裂作用而产生的卡定表面的粗糙部分不与闩锁构件接触，从而不需要加工操作，以提供与闩锁构件的低摩擦接触表面。
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