WEAR-BALANCED ELECTROMAGNETIC MOTOR CONTROL SWITCHING
    11.
    发明申请
    WEAR-BALANCED ELECTROMAGNETIC MOTOR CONTROL SWITCHING 审中-公开
    平衡电动马达控制切换

    公开(公告)号:US20160133415A1

    公开(公告)日:2016-05-12

    申请号:US14832885

    申请日:2015-08-21

    IPC分类号: H01H50/00 H01H50/86

    摘要: One embodiment describes a method that includes in a first switching operation of an electrical power switching system including three separately controllable single pole, single current-carrying path switching devices that provide three-phase power to a load, and control circuitry coupled to the switching devices to control closing and opening of the current-carrying paths, commanding at least one of the switching devices to open or close in advance of at least one other of the switching devices based upon a current zero-crossing or a predicted current zero-crossing of input three-phase power; and in subsequent switching operations alternating which of the three switching devices is closed or opened in advance of another of the switching devices.

    摘要翻译: 一个实施例描述了一种方法,其包括在电力开关系统的第一开关操作中的电力开关系统,该电力开关系统包括三个可独立控制的单极,向负载提供三相电力的单个载流路径开关器件,以及耦合到开关器件的控制电路 以控制载流路径的关闭和打开,基于当前的过零或当前过零的预测电流过零点,指示至少一个开关装置在开关装置中的至少另一个开关装置之前打开或关闭 输入三相电源; 并且在随后的切换操作中,交替地切换三个开关装置中的哪一个在另一个开关装置之前关闭或打开。

    SINGLE-POLE, SINGLE CURRENT PATH SWITCHING SYSTEM AND METHOD
    12.
    发明申请
    SINGLE-POLE, SINGLE CURRENT PATH SWITCHING SYSTEM AND METHOD 有权
    单路,单电流路径切换系统及方法

    公开(公告)号:US20160133414A1

    公开(公告)日:2016-05-12

    申请号:US14832861

    申请日:2015-08-21

    摘要: One embodiment describes a three-phase electromechanical switching device, which includes three single-phase switching devices mechanically and electrically coupled in parallel with one another, each single-phase switching device including a direct current electromagnetic operator that in operation receives a direct current control signal for switching of the device, stationary contacts disposed in a respective device housing, and a movable assembly that in operation is displaced by energizing the operator and that include movable contacts that open and close, with the stationary contacts, a single current carrying path through the respective single-phase switching device; in which each of the single-phase switching devices receives control signals from control circuitry coupled to the operators of the respective single-phase switching devices to cause at least one of the single-phase switching devices to open or close the single current carrying path at a desired time coordinated with a current zero-crossing or a predicted current zero-crossing of a phase of three-phase power.

    摘要翻译: 一个实施例描述了一种三相机电开关装置,其包括三个彼此并联的机械和电耦合的单相开关装置,每个单相开关装置包括直流电磁操作器,其在操作中接收直流控制信号 用于切换装置,设置在相应的装置壳体中的固定触点和运动中的可移动组件通过使操作者通电而移动,并且包括与固定触点一起打开和关闭的活动触点,通过 各单相开关装置; 其中每个单相开关装置接收来自耦合到各个单相开关装置的操作者的控制电路的控制信号,以使至少一个单相开关装置打开或关闭单个载流路径 与三相功率相位的电流过零或预测电流过零相配合的期望时间。

    TEMPERATURE-BASED ELECTROMAGNETIC SWITCHING
    13.
    发明申请

    公开(公告)号:US20190025375A1

    公开(公告)日:2019-01-24

    申请号:US16141469

    申请日:2018-09-25

    IPC分类号: G01R31/327

    摘要: One embodiment describes a method that includes determining, using a control circuitry, temperature of a switching device before a make operation by applying a measurement current to an operating coil of the switching device, wherein the measurement current is insufficient to make the switching device; and determining voltage at the operating coil when the measurement current is applied, in which the voltage at the operating coil is directly related to the temperature. The method further includes determining, using the control circuitry, when to apply a pull-in current to the operating coil to close the switching device based at least in part on the voltage at the operating coil, such that the switching device makes at a desired time.

    MODULAR MULTIPLE SINGLE-POLE ELECTROMAGNETIC SWITCHING SYSTEM AND METHOD
    17.
    发明申请
    MODULAR MULTIPLE SINGLE-POLE ELECTROMAGNETIC SWITCHING SYSTEM AND METHOD 有权
    模块化多单电极电磁开关系统及方法

    公开(公告)号:US20160134210A1

    公开(公告)日:2016-05-12

    申请号:US14832744

    申请日:2015-08-21

    摘要: One embodiment describes a wye-delta starter, which includes a first single pole, single current carrying path switching device that selectively connects and disconnects a first winding of a motor in a wye configuration; a second single pole, single current carrying path switching device that selectively connects and disconnects the first winding in a delta configuration, in which the first switching device and the second switching device are coupled via a first interlock; a third single pole, single current carrying path switching device that selectively connects and disconnects a second winding and a third winding of the motor in the wye configuration; a fourth single pole, single current carrying path switching device that selectively connects and disconnects the second winding in the delta configuration, in which the third switching device and the fourth switching device are coupled via a second interlock; and a fifth single pole, single current carrying path switching device that selectively connects and disconnects the third winding in the delta configuration.

    摘要翻译: 一个实施例描述了一种三角形起动器,其包括第一单极,单电流承载路径切换装置,其选择性地连接和断开电动机的第一绕组成一种配置; 第二单极,单电流承载路径切换装置,其以第一开关装置和第二开关装置经由第一互锁联接,以三角形配置选择性地连接和断开第一绕组; 第三单极,单电流承载路径切换装置,其选择性地将所述电动机的第二绕组和所述第三绕组以所述叶片配置断开; 第四单极单通电路径切换装置,其选择性地连接和断开第三绕组中的第三绕组,其中第三开关装置和第四开关装置经由第二互锁联接; 以及第五单极,单电流承载路径切换装置,其以三角形配置选择性地连接和断开第三绕组。

    OPERATOR COIL PARAMETER BASED ELECTROMAGNETIC SWITCHING
    18.
    发明申请
    OPERATOR COIL PARAMETER BASED ELECTROMAGNETIC SWITCHING 审中-公开
    基于操作员线圈参数的电磁开关

    公开(公告)号:US20160133410A1

    公开(公告)日:2016-05-12

    申请号:US14832666

    申请日:2015-08-21

    IPC分类号: H01H47/22

    摘要: One embodiment describes an operating coil driver circuitry, which includes a control circuitry that outputs a trigger signal and a reference voltage; an operational amplifier that compares the reference voltage to a node voltage, in which the node voltage is directly related to current flowing through an operating coil of a switching device and the operational amplifier outputs a logic high signal when the node voltage is higher than the reference voltage and outputs a logic low signal when the node voltage is lower than the reference voltage; and a flip-flop that outputs a pulse-width modulated signal to instruct a switch to supply a desired current to the operating coil based at least in part on the trigger signal and the signal output by the operational amplifier.

    摘要翻译: 一个实施例描述了一种操作线圈驱动器电路,其包括输出触发信号和参考电压的控制电路; 将参考电压与节点电压进行比较的运算放大器,其中节点电压与流过开关器件的工作线圈的电流直接相关,并且当节点电压高于参考电压时,运算放大器输出逻辑高电平信号 当节点电压低于参考电压时,电压输出逻辑低电平信号; 以及触发器,其输出脉冲宽度调制信号以指示开关至少部分地基于所述触发信号和由所述运算放大器输出的信号来向所述工作线圈提供期望的电流。