WEAR-BALANCED ELECTROMAGNETIC MOTOR CONTROL SWITCHING
    14.
    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

    CPC classification number: H01H50/002 H01H9/563 H01H50/86 H02P1/32 H02P25/184

    Abstract: 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.

    Abstract translation: 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
    15.
    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

    Abstract: 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.

    Abstract translation: 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
    16.
    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

    Abstract: 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.

Patent Agency Ranking