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    • 1. 发明申请
    • POWER METER WITH CURRENT AND PHASE SENSOR
    • 具有电流和相位传感器的功率计
    • WO2014105018A2
    • 2014-07-03
    • PCT/US2012/071772
    • 2012-12-27
    • SCHNEIDER ELECTRIC USA, INC.
    • BRUEL, MarcBUDA, PaulGUNN, ColinCOLBY, RoyFILIPPENKO, Alexander
    • G01R11/30
    • G01R21/133G01R19/2513G01R21/06
    • According to one aspect, embodiments of the invention provide a power meter comprising a voltage sensor, at least one current and phase sensor circuit, and a central metering unit, wherein the voltage sensor is further configured to measure a voltage on an input line and transmit a signal related to the voltage to the central metering unit, wherein the at least one current and phase sensor circuit is further configured to measure a current and a voltage phase shift of a feeder line, and to transmit a signal related to at least one of the current of the feeder line and the voltage phase shift of the feeder line to the central metering unit, and wherein the central metering unit is configured to calculate power provided to a load via the feeder line based on the signal transmitted from the at least one current and phase sensor circuit.
    • 根据一个方面,本发明的实施例提供了一种功率计,其包括电压传感器,至少一个电流和相位传感器电路以及中央计量单元,其中所述电压传感器还被配置成测量输入线上的电压并传输 与所述中央计量单元的电压有关的信号,其中所述至少一个电流和相位传感器电路还被配置为测量馈线的电流和电压相移,并且发送与至少一个 馈电线路的电流和馈电线路的电压相移到中央计量单元,并且其中中央计量单元被配置为基于从至少一个发送的信号计算经由馈电线路向负载提供的功率 电流和相位传感器电路。