公开(公告)号：US07468595B2

公开(公告)日：2008-12-23

申请号：US11161200

申请日：2005-07-26

申请人： Kevin Lee ,  Jyrki K. Ahlgren ,  Ian T. Wallace ,  Thomas M. Doring

发明人： Kevin Lee ,  Jyrki K. Ahlgren ,  Ian T. Wallace ,  Thomas M. Doring

IPC分类号： H02P5/34 ,  H02P7/36 ,  H02P7/42

CPC分类号： H02P1/04 ,  H02P27/047

摘要： A motor drive for conditioning power to be delivered to a load includes a current feedback circuit that monitors current being fed to a transformer connected between the motor drive and the load. Based on the total current input to the transformer, a controller adjusts the V/Hz profile along which the motor drive operates. In this regard, the motor drive operates according to a V/Hz profile during start-up that prevents transformer saturation.

摘要翻译： 用于调节供电到负载的电力的电动机驱动器包括电流反馈电路，其监测馈送到连接在电动机驱动器和负载之间的变压器的电流。 根据变压器的总电流输入，一个控制器调节电动机驱动器运行的V / Hz曲线。 在这方面，电机驱动器在启动期间根据V / Hz曲线进行操作，从而防止变压器饱和。

公开(公告)号：US6084756A

公开(公告)日：2000-07-04

申请号：US235715

申请日：1999-01-22

申请人： Thomas M. Doring ,  Ralph Mason Ennis ,  Joseph Charles Engel

发明人： Thomas M. Doring ,  Ralph Mason Ennis ,  Joseph Charles Engel

IPC分类号： G01R31/327 ,  H02H1/00 ,  H02H3/04 ,  H02H3/16

CPC分类号： G01R31/3277 ,  H02H3/044 ,  H02H1/0015

摘要： A tester for an arc fault circuit breaker plugs into a socket in the protected branch circuit. An actuator includes a first spring biasing a moveable contact carried by a pivoted contact arm away from a fixed contact and a momentary closer for momentarily closing the contacts. The momentary closer includes a push button and a second spring coupling the push button to the pivoted contact arm to close the contacts when actuated. Closing of the contacts completes a circuit across the branch circuit resulting in a current producing a magnetic repulsion force which blows the contacts open thereby striking an arc. The arc, which should trip the arc fault circuit breaker is visible through a translucent or transparent section of the molded tester housing. A fuse interrupts any overcurrent and a test light verifies initial energization of the protected circuit and operation of the arc fault circuit breaker.

摘要翻译： 电弧故障断路器的测试仪插入保护分支电路的插座。 致动器包括第一弹簧，其偏压由枢转接触臂承载的可移动接触件远离固定触头和瞬时闭合器，以暂时闭合触点。 瞬时关闭器包括按钮和将按钮联接到枢转接触臂的第二弹簧，以在致动时闭合触点。 触点的闭合在分支电路两端完成电路，导致电流产生磁性排斥力，其将触点打开从而撞击电弧。 应该通过模制的测试器壳体的半透明或透明部分看到电弧故障断路器跳闸的电弧。 一个保险丝中断任何过电流，一个测试灯验证保护电路的初始通电和电弧故障断路器的运行。

公开(公告)号：US07932693B2

公开(公告)日：2011-04-26

申请号：US11176820

申请日：2005-07-07

申请人： Kevin Lee ,  Jyrki K. Ahlgren ,  Ian T. Wallace ,  Thomas M. Doring

发明人： Kevin Lee ,  Jyrki K. Ahlgren ,  Ian T. Wallace ,  Thomas M. Doring

IPC分类号： H02P27/04

CPC分类号： H02P27/06 ,  H02M7/53875 ,  H02M2001/0022 ,  H02P29/026

摘要： A motor drive for conditioning power to be delivered to a non-motor load includes a voltage feedback circuit that monitors a DC bus voltage and, based on changes in the DC bus voltage, adjusts a power conditioning scheme such that near steady-state load conditions are maintained in response to a transient load condition. The voltage feedback circuit has a voltage sensor that provides voltage feedback to a controller that determines what changes in power conditioning are needed in response to a transient load condition that manifests itself in a change in DC bus voltage.

摘要翻译： 用于调节输送到非电动机负载的电力的电动机驱动器包括监视DC总线电压的电压反馈电路，并且基于DC总线电压的变化来调节功率调节方案，使得接近稳态负载条件 被保持以响应瞬态负载条件。 电压反馈电路具有向控制器提供电压反馈的电压传感器，其确定响应于在直流母线电压的变化中显现的瞬态负载条件而需要功率调节的什么变化。