公开(公告)号：US20060214670A1

公开(公告)日：2006-09-28

申请号：US11312929

申请日：2005-12-20

申请人： Malakondaiah Naidu ,  Thomas Schoepf ,  Suresh Gopalakrishnan

发明人： Malakondaiah Naidu ,  Thomas Schoepf ,  Suresh Gopalakrishnan

IPC分类号： G01R31/12 ,  G01R31/08 ,  H01H9/50

CPC分类号： H02H1/0015 ,  G01R31/025 ,  H02H3/44

摘要： An arc fault detector includes a shunt resistor deployed in a protected circuit, an arc discriminator sensing voltages across the shunt resistor and producing an arc indication deduced from current variations associated with parallel and series arc faults, a signal transformer buffering the arc detection signal and producing a pulse, a switch transient detector sensing a voltage differential across load switches and producing a pulsed switch transient signal when the voltage differential across load switches exceeds a reference value, a line interrupter, such as a static relay, a switch controller including logic gates generating a trip signal based on predetermined criteria, and a manual switch for resetting the line interrupter. An embodiment comprises a voltage sensing coil enveloping a toroidal core to detect current variations in conductors passing through the core.

摘要翻译： 电弧故障检测器包括部署在受保护电路中的分流电阻器，电弧鉴别器感测分流电阻器两端的电压，并产生从与并联和串联电弧故障相关联的电流变化推断的电弧指示;信号变压器缓冲电弧检测信号并产生 脉冲，开关瞬态检测器，当负载开关上的电压差超过参考值时，检测负载开关两端的电压差，并产生脉冲开关瞬态信号;线路断续器，如静态继电器;开关控制器，包括逻辑门产生 基于预定标准的跳闸信号，以及用于复位线路断路器的手动开关。 一个实施例包括一个包围环形磁芯的电压感测线圈，以检测通过磁芯的导体的电流变化。

公开(公告)号：US20050205396A1

公开(公告)日：2005-09-22

申请号：US10803764

申请日：2004-03-18

申请人： Neil Aukland ,  Thomas Schoepf ,  George Drew ,  Gerd Rudolph

发明人： Neil Aukland ,  Thomas Schoepf ,  George Drew ,  Gerd Rudolph

IPC分类号： H01H1/40 ,  H01H3/48 ,  H01H9/38 ,  H01H15/00 ,  H01H15/04 ,  H01H19/00

CPC分类号： H01H9/38 ,  H01H1/403 ,  H01H15/04

摘要： A contact structure for a sliding switch includes a conductive stationary contact disposed on a base and a conductive movable contact for electrically contacting the stationary contact. The movable contact is movable along a path between a non-contact position and a make-contact position with respect to the stationary contact, and at least one of the contacts has a protruding portion that provides an electrical interface for discharge of arcing as the movable contact breaks from the stationary contact. As a result, the invention prevents or substantially reduces degradation in switch performance which might otherwise be caused by debris accumulation associated with arcing.

摘要翻译： 用于滑动开关的接触结构包括设置在基座上的导电固定触点和用于电接触固定触点的导电可移动触头。 可移动触点可以相对于固定触点在非接触位置和接触位置之间的路径上移动，并且至少一个触点具有突出部分，该突出部分提供用于放电的电接口作为可动 接触断裂从固定触点。 结果，本发明防止或基本上减少开关性能的劣化，否则可能由与电弧放电有关的碎屑积聚引起。