System and Method for Measuring Reactive Power
    1.
    发明申请
    System and Method for Measuring Reactive Power 有权
    无功功率测量系统及方法

    公开(公告)号:US20100085037A1

    公开(公告)日:2010-04-08

    申请号:US12473166

    申请日:2009-05-27

    IPC分类号: G01R21/06

    摘要: A system and method for measuring reactive power which uses a pair of quadrate carriers to add a 90 degree phase shift to a voltage path or a current path in a power meter. The quadrate carriers have the same frequency but are offset in phase from each other by 90 degrees.

    摘要翻译: 一种用于测量无功功率的系统和方法,该系统和方法使用一对正方形载波向功率计中的电压路径或电流路径增加90度的相移。 正交载波具有相同的频率,但相位偏移90度。

    System and method for measuring reactive power
    2.
    发明授权
    System and method for measuring reactive power 有权
    用于测量无功功率的系统和方法

    公开(公告)号:US08350558B2

    公开(公告)日:2013-01-08

    申请号:US12473166

    申请日:2009-05-27

    IPC分类号: G01R5/14 G01R5/16 G01R13/00

    摘要: A system and method for measuring reactive power which uses a pair of quadrate carriers to add a 90 degree phase shift to a voltage path or a current path in a power meter. The quadrate carriers have the same frequency but are offset in phase from each other by 90 degrees.

    摘要翻译: 一种用于测量无功功率的系统和方法,该系统和方法使用一对正方形载波向功率计中的电压路径或电流路径增加90度的相移。 正交载波具有相同的频率,但相位偏移90度。