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    • 3. 发明授权
    • Non-intrusive monitoring of power and other parameters
    • 不间断监控电源等参数
    • US08344724B2
    • 2013-01-01
    • US12614245
    • 2009-11-06
    • Steven B. LeebZachary A. CliffordJohn J. CooleyAl-Thaddeus Avestruz
    • Steven B. LeebZachary A. CliffordJohn J. CooleyAl-Thaddeus Avestruz
    • G01N27/72G01R31/08G01R19/00
    • G01R33/12G01R31/3277
    • Methods and apparatus for non-intrusive power monitoring and current measurement in a circuit breaker without modification of the breaker panel or the circuit breaker itself. In one example, an inductive pickup sensor senses current from the breaker face, an inductive link transmits power through a steel breaker panel door, and a passive balanced JFET modulator circuit modulates a carrier signal on the inductive link with information regarding the sensed current. A demodulated breaker current signal is available outside of the breaker panel door. The JFET modulator circuit does not require DC power to modulate the carrier signal with the information regarding the sensed current from the breaker. Such methods and apparatus may be interfaced with a spectral envelope load detection system that can monitor multiple loads from a central location.
    • 断路器面板或断路器本身未经修改的断路器中无侵入式电力监测和电流测量的方法和装置。 在一个示例中,感应式传感器感测来自断路器面的电流,电感链路通过钢制断路器面板门传输电力,并且无源平衡JFET调制器电路利用关于感测电流的信息来调制电感链路上的载波信号。 解除断路器电流信号可在断路器面板门外部使用。 JFET调制器电路不需要直流电源来调制载波信号,其信号与来自断路器的感测电流相关。 这样的方法和装置可以与可以监测来自中心位置的多个负载的频谱包络负载检测系统接口。
    • 4. 发明申请
    • NON-INTRUSIVE MONITORING OF POWER AND OTHER PARAMETERS
    • 电力和其他参数的非侵入式监测
    • US20110109306A1
    • 2011-05-12
    • US12614245
    • 2009-11-06
    • Steven B. LeebZachary A. CliffordJohn J. CooleyAl-Thaddeus Avestruz
    • Steven B. LeebZachary A. CliffordJohn J. CooleyAl-Thaddeus Avestruz
    • G01R33/12
    • G01R33/12G01R31/3277
    • Methods and apparatus for non-intrusive power monitoring and current measurement in a circuit breaker without modification of the breaker panel or the circuit breaker itself. In one example, an inductive pickup sensor senses current from the breaker face, an inductive link transmits power through a steel breaker panel door, and a passive balanced JFET modulator circuit modulates a carrier signal on the inductive link with information regarding the sensed current. A demodulated breaker current signal is available outside of the breaker panel door. The JFET modulator circuit does not require DC power to modulate the carrier signal with the information regarding the sensed current from the breaker. Such methods and apparatus may be interfaced with a spectral envelope load detection system that can monitor multiple loads from a central location.
    • 断路器面板或断路器本身未经修改的断路器中无侵入式电力监测和电流测量的方法和装置。 在一个示例中,感应式传感器感测来自断路器面的电流,电感链路通过钢制断路器面板门传输电力,并且无源平衡JFET调制器电路利用关于感测电流的信息来调制电感链路上的载波信号。 解除断路器电流信号可在断路器面板门外部使用。 JFET调制器电路不需要直流电源来调制载波信号,其信号与来自断路器的感测电流相关。 这样的方法和装置可以与可以监测来自中心位置的多个负载的频谱包络负载检测系统接口。