-
公开(公告)号：US4816958A
公开(公告)日：1989-03-28
申请号：US119592
申请日：1987-11-12
申请人： Elie Belbel , Louis Fechant , Andre Vergez , Jean P. Riotte
发明人： Elie Belbel , Louis Fechant , Andre Vergez , Jean P. Riotte
CPC分类号： H01H33/161 , H01H2033/163
摘要： An electric protection apparatus is provided for protection against current faults of different intensities, including, in series in an internal circuit, a first switch with automatic opening, which is controlled by moderate current levels, and a second switch with automatic opening having short circuit current limiting properties; a zinc oxide voltage limiting component, which is placed in parallel across this latter, has a fairly low stabilization threshold so that diverted currents, flowing through it at the time of opening on a short circuit, extend as far as the resistive portion of the characteristic which follows the stabilization level portion.
摘要翻译： 提供一种电气保护装置，用于防止不同强度的电流故障，包括串联在内部电路中，具有由适当电流水平控制的自动打开的第一开关和具有短路电流的自动打开的第二开关 限制性质; 在后者中平行放置的氧化锌电压限制部件具有相当低的稳定阈值，使得在短路时打开时流过的转向电流延伸到特性的电阻部分 其遵循稳定水平部分。
-
公开(公告)号：US4568907A
公开(公告)日：1986-02-04
申请号：US639876
申请日：1984-08-13
申请人： Ralph L. Hurtle
发明人： Ralph L. Hurtle
CPC分类号： H01H77/10 , H01H73/18 , H01H2033/163 , H01H9/342
摘要： A low inductance resistor for high current limitation is arranged from a single conductor wrapped in a continuous direction to form a plurality of turns wherein current transport through each of the turns induces a corresponding magnetic field to oppose the magnetic field induced within each next adjacent turn. The resistor finds application within a current limiter unit which employs magnetic repulsion and gas pressure to direct arcs that occur between separating contacts to within the high voltage region of an arc chute. The resistor is connected across the arc to reduce the arc current to a low enough value so that the arc becomes extinguished within a predetermined period of time.
摘要翻译： 用于高电流限制的低电感电阻器从沿连续方向缠绕的单个导体布置以形成多个匝，其中通过每个匝的电流传输引起相应的磁场以与在每个下一个相邻匝内感应的磁场相对。 电阻器在电流限制器单元内实现应用，其采用磁排斥和气体压力来将在分离触点之间发生的电弧引导到电弧槽的高电压区域内。 电阻器跨过电弧连接，以将电弧电流减小到足够低的值，使得电弧在预定时间段内熄灭。
-
公开(公告)号：US4485283A
公开(公告)日：1984-11-27
申请号：US412445
申请日：1982-08-27
申请人： Ralph L. Hurtle
发明人： Ralph L. Hurtle
CPC分类号： H01H73/18 , H01H77/10 , H01H2033/163 , H01H9/342
摘要： A current limiter unit employs both a magnetic repulsion field and a gas pressure force to direct arcs to within the high voltage region of an arc chute. The unit confines the evolved gas pressure in all directions except in the direction of the arc plates. Venting the opposite end of the arc chute rapidly motivates the arc through the arc plates and out of the unit. Venting the sides of the arc chute reduces the back pressure produced by arc gases as well as the pressure exerted upon the heated breaker casing. The combination of magnetic and directed gas repulsion substantilly reduces the I.sup.2 t value of the unit. A parallel positive temperature coefficient impedance can be connected across the arc to reduce the arc current to a low enough value so that the arc becomes extinguished within a predetermined period of time.
摘要翻译： 电流限制器单元采用磁排斥场和气体压力力来将电弧引导到电弧槽的高电压区域内。 该单元将进化气体压力限制在除弧板方向以外的所有方向上。 将电弧槽的相对端排空，迅速激发电弧穿过电弧板并离开设备。 排气弧槽的侧面减少了由电弧气体产生的背压以及施加在加热的断路器壳体上的压力。 磁性和定向气体排斥的结合使得该单元的I2t值降低。 平行的正温度系数阻抗可以跨越电弧连接，以将电弧电流减小到足够低的值，使得电弧在预定时间段内熄灭。
-
公开(公告)号：US4165502A
公开(公告)日：1979-08-21
申请号：US804693
申请日：1977-06-08
申请人： Paul R. Andersen
发明人： Paul R. Andersen
CPC分类号： H01H77/10 , H01H71/16 , H01H2033/163
摘要： The following specification describes a bimetal in the limiter assembly of a circuit breaker to operate the trip crossbar for opening the main circuit breaker contacts. An arm is also provided on one blade of the current limiter contacts to also operate the trip crossbar for ensuring rapid opening of the main contacts of the circuit breaker in response to high fault currents. The bimetal is connected between the electromagnet winding and one of the current limiter contact blades in shunt with a path of selected resistance. The resistance is selected as desired by connecting pigtail conductors of desired size either in shunt with or to selected portions of the bimetal to control the current passing through the bimetal for controlling the heat of the bimetal in accordance with the rating of the breaker. A calibration assembly for the bimetal is carried by the electromagnetic assembly.
摘要翻译： 以下说明书描述了在断路器的限幅器组件中的双金属，以操作用于打开主断路器触点的跳闸横杆。 电流限制器触点的一个刀片上还设有一个臂，还可以操作跳闸横截面，以确保响应于高故障电流快速打开断路器的主触点。 双金属片连接在电磁线圈和其中一个电流限制器接触片之间，并与选定电阻的路径并联。 通过将所需尺寸的尾纤导体与双金属片的选定部分分流或连接到双金属片的选定部分来控制电流，以根据断路器的额定值控制通过双金属片的电流，以控制双金属片的热量。 用于双金属的校准组件由电磁组件承载。
-
35.发明授权Circuit arrangement for suppressing an arc occurring over a contact gap of a switching member 有权用于抑制在开关构件的接触间隙上发生的电弧的电路装置公开(公告)号：US09543088B2
公开(公告)日：2017-01-10
申请号：US14302505
申请日：2014-06-12
发明人： Christopher Merz , Markus Hopf
CPC分类号： H01H9/42 , H01H9/541 , H01H33/161 , H01H33/596 , H01H2033/163 , H02H3/021 , H02H3/087 , H02M1/32
摘要： The disclosure relates to a circuit arrangement for suppressing an arc occurring during a switching process, wherein a current bypass path comprises a PTC resistor connected in series with a fuse. The current bypass path is provided in parallel with a switch. The disclosure also relates to a photovoltaic power plant with a photovoltaic generator which is connected to an inverter via DC lines. In this arrangement, such a circuit arrangement is arranged in at least one of the DC lines.
摘要翻译： 本公开涉及一种用于抑制在切换过程中发生的电弧的电路装置，其中电流旁路路径包括与保险丝串联连接的PTC电阻器。 当前旁路路径与开关并联提供。 本公开还涉及具有通过DC线连接到逆变器的光伏发电机的光伏电站。 在这种布置中，这种电路布置被布置在至少一条DC线中。
-
36.发明申请CIRCUIT ARRANGEMENT FOR SUPPRESSING AN ARC OCCURRING OVER A CONTACT GAP OF A SWITCHING MEMBER 有权用于抑制在开关构件的接触间隙发生电弧的电路布置公开(公告)号：US20140293666A1
公开(公告)日：2014-10-02
申请号：US14302505
申请日：2014-06-12
发明人： Christopher Merz , Markus Hopf
CPC分类号： H01H9/42 , H01H9/541 , H01H33/161 , H01H33/596 , H01H2033/163 , H02H3/021 , H02H3/087 , H02M1/32
摘要： The disclosure relates to a circuit arrangement for suppressing an arc occurring during a switching process, wherein a current bypass path comprises a PTC resistor connected in series with a fuse. The current bypass path is provided in parallel with a switch. The disclosure also relates to a photovoltaic power plant with a photovoltaic generator which is connected to an inverter via DC lines. In this arrangement, such a circuit arrangement is arranged in at least one of the DC lines.
摘要翻译： 本公开涉及一种用于抑制在切换过程中发生的电弧的电路装置，其中电流旁路路径包括与保险丝串联连接的PTC电阻器。 当前旁路路径与开关并联提供。 本公开还涉及具有通过DC线连接到逆变器的光伏发电机的光伏电站。 在这种布置中，这种电路布置被布置在至少一条DC线中。
-
公开(公告)号：US08467155B2
公开(公告)日：2013-06-18
申请号：US13182380
申请日：2011-07-13
申请人： Matthias Kroeker , Joerg Einhorn , Gilles Gozlan
发明人： Matthias Kroeker , Joerg Einhorn , Gilles Gozlan
CPC分类号： H01H50/543 , H01H33/161 , H01H33/168 , H01H47/18 , H01H2033/163 , Y10T307/76
摘要： The invention provides a switching device having a contact protection circuit for arcing suppression. The switching device comprises a main relay for interrupting a load path and a dual coil auxiliary having a high resistance coil and a low resistance coil that operate the switching of an auxiliary contact. The auxiliary contact is connected in series with a PTC device and the low resistance coil of the auxiliary relay in a series arrangement. The series arrangement is connected in parallel to the main contact. When the main relay opens, the auxiliary contact is maintained closed during a given time interval due to the magnetic flux generated by the low resistance coil. The given time interval depends on the transition of the PTC device to trip state. In another configuration, the dual coil relay is substituted by two auxiliary relays.
摘要翻译： 本发明提供一种具有用于电弧抑制的接触保护电路的开关装置。 开关装置包括用于中断负载路径的主继电器和具有操作辅助触点的切换的高电阻线圈和低电阻线圈的双线圈辅助。 辅助触点与PTC器件和辅助继电器的低电阻线圈串联连接。 串联装置与主触点并联连接。 当主继电器打开时，由于低电阻线圈产生的磁通量，辅助触点在给定的时间间隔内保持关闭。 给定的时间间隔取决于PTC设备到跳闸状态的转换。 在另一种配置中，双线圈继电器由两个辅助继电器代替。
-
公开(公告)号：US20080006796A1
公开(公告)日：2008-01-10
申请号：US11563723
申请日：2006-11-28
申请人： Bhanu Bhusan Khatua , Sumanda Bandyopadhyay , Soumyadeb Ghosh , Hari Nadathur Seshadri , Franciscus Petrus Maria Mercx
发明人： Bhanu Bhusan Khatua , Sumanda Bandyopadhyay , Soumyadeb Ghosh , Hari Nadathur Seshadri , Franciscus Petrus Maria Mercx
IPC分类号： H01B1/12
CPC分类号： H01H71/142 , C01P2006/42 , C04B35/4682 , C04B35/6261 , C04B2235/3227 , C04B2235/3251 , C04B2235/3262 , C04B2235/3294 , C04B2235/656 , C04B2235/6565 , C04B2235/6567 , C04B2235/9615 , C09C1/36 , H01B1/22 , H01C7/02 , H01C7/025 , H01C7/027 , H01H37/58 , H01H2033/163
摘要： An article includes a composition including a filler dispersed in a polymeric matrix. The filler is electrically conducting in a temperature range and the filler has a Curie temperature. The composition has a trip temperature at which electrical resistance of the composition increases with increase in temperature, and the trip temperature of the composition is determined by the Curie temperature of the filler. The filler is present in the polymeric matrix in an amount determined by a property of one or both of the polymeric matrix or the filler. An associated device is provided.
摘要翻译： 一种制品包括包含分散在聚合物基质中的填料的组合物。 填料在温度范围内导电，填料具有居里温度。 组合物具有组合物的电阻随着温度升高而升高的跳闸温度，组合物的脱扣温度由填料的居里温度决定。 填料以聚合物基质或填料中的一种或两种的性质确定的量存在于聚合物基质中。 提供相关设备。
-
公开(公告)号：US07141751B2
公开(公告)日：2006-11-28
申请号：US11357773
申请日：2006-02-17
申请人： Jong-Sung Kang , Yun-Hyuk Kwon , Seok-Hyun Nam , Bang-Wook Lee , Won-Joon Choi
发明人： Jong-Sung Kang , Yun-Hyuk Kwon , Seok-Hyun Nam , Bang-Wook Lee , Won-Joon Choi
IPC分类号： H01H9/44
CPC分类号： H01H1/2016 , H01H1/2041 , H01H9/42 , H01H2033/163
摘要： Disclosed is a breaker for providing successive trip mechanism based on PTC current-limiting device, which includes a first switch having first fixed/movable contact points; a second switch having second fixed/movable contact and connected to the first switch in parallel; PTC current-limiting device connected to the first and second switches in parallel or series and allowing a change of current flow direction from the first switch to the second switch at a fault current; a movable arm to which the movable contact points are installed at an interval therebetween and opening/closing the switches by operating the movable contact points; a fixed arm including first and second fixed arm conductors for guiding current flow toward the first fixed contact point in a normal load current mode and guiding current flow toward the second fixed contact point via the PTC current-limiting device in a fault current mode; and a successive trip means for elastically biasing the second switch by operation of the movable arm in a closing direction when both switches are closed and successively tripping both switches using time taken for releasing the elastic bias of the second switch when the movable arm is operated in a tripping direction.
-
公开(公告)号：US06665157B2
公开(公告)日：2003-12-16
申请号：US09219143
申请日：1998-12-22
IPC分类号： H01H930
CPC分类号： H01H9/42 , H01H9/36 , H01H73/045 , H01H77/108 , H01H2033/163
摘要： An electrical circuit interrupter includes a primary or normal current carrying path and a transient or alternative current carrying path. The normal current carrying path is established by a movable spanner extending between stationary contacts during normal operation. The transient current carrying path includes at least one variable resistance element which transitions from a lower resistance to a higher resistance during interruption. The transient current carrying path forms an open circuit in parallel with the normal current carrying path during normal operation. Upon interruption, the transient current carrying path is favored for the fault current, completely interrupting the normal current carrying path. The variable resistance elements increase their resistivity during this phase of operation to aid in providing high levels of back-EMF for complete interruption of fault current through the device and limitation of let-through energy.
摘要翻译： 电路断路器包括初级或正常载流路径和瞬时或替代的载流路径。 正常的载流路径由在正常操作期间在固定触点之间延伸的可移动扳手建立。 瞬态电流承载路径包括至少一个可变电阻元件，其在中断期间从较低电阻转变到较高电阻。 在正常运行期间，瞬态电流承载路径与正常载流路径平行地形成开路。 在中断时，瞬态电流承载路径对于故障电流是有利的，完全中断正常的载流路径。 可变电阻元件在此操作阶段增加其电阻率，以帮助提供高水平的反电动势，以完全中断穿过器件的故障电流和限制通过能量。
-
-
-
-
-
-
-
-
-
搜索结果
47 条记录 (耗时 0.018 秒)
