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    METHOD FOR MONITORING CIRCUIT BREAKER AND APPARATUS AND INTERNET OF THINGS USING THE SAME
    2.
    发明申请
    METHOD FOR MONITORING CIRCUIT BREAKER AND APPARATUS AND INTERNET OF THINGS USING THE SAME 审中-公开

    公开(公告)号：WO2018232558A1

    公开(公告)日：2018-12-27

    申请号：PCT/CN2017/088974

    申请日：2017-06-19

    Applicant: ABB SCHWEIZ AG ,  CHEN, Niya ,  ZHANG, Xin ,  RUAN, Jiayang ,  YU, Rongrong

    Inventor： CHEN, Niya ,  ZHANG, Xin ,  RUAN, Jiayang ,  YU, Rongrong

    IPC: G01R31/327

    Abstract: It provides a method for monitoring a circuit breaker and an apparatus and an internet of things using the same. The method includes: obtaining a first data set representing force applied to a fixed point of an element of an actuating mechanism of the circuit breaker in present operation cycle, judging a health condition of the circuit breaker in consideration of normal operating condition related parameters of the element according to a history profile when the circuit breaker operated normally and current operating condition related parameters of the element in the present operation cycle extracted from the force represented by the first data set, and generating a signal indicating the health condition of the actuating mechanism of the circuit breaker the circuit breaker. The force applied to the fixed point of the actuating mechanism of the circuit breaker, which corresponds to a health condition of mechanical parts of the circuit breaker as a whole, is selected as an indicator for condition monitoring of the mechanical parts of the circuit breaker. The operating condition related parameters derived from the measurements of the force are considered giving a relatively high accurate judgement of the whole mechanical parts of the circuit breaker.

    METHOD AND DEVICE FOR MONITORING A CIRCUIT BREAKER
    3.
    发明申请
    METHOD AND DEVICE FOR MONITORING A CIRCUIT BREAKER 审中-公开

    公开(公告)号：WO2020132836A1

    公开(公告)日：2020-07-02

    申请号：PCT/CN2018/123232

    申请日：2018-12-24

    Applicant: ABB SCHWEIZ AG ,  CHEN, Niya ,  RUAN, Jiayang

    Inventor： CHEN, Niya ,  RUAN, Jiayang

    IPC: G01M13/00 ,  G01H17/00

    Abstract: A method for monitoring a circuit breaker is provided. The method comprises: detecting at least one operation of a circuit breaker to obtain at least one vibration signal of the circuit breaker, each vibration signal being represented as one-dimensional data of a vibration amplitude over time during the operation of the circuit breaker; transforming the vibration signal to two-dimensional frequency-time data; comparing the transformed frequency-time data with benchmark data characterizing the at least one operation of the circuit breaker; and determining a health condition of the circuit breaker at least in part based on the comparison. A device for monitoring a circuit breaker is also provided. Both the frequency component and the time component in the detected test vibration signals are considered in condition determination of the circuit breaker. The condition can be determined with high accuracy.

    METHOD FOR MONITORING CIRCUIT BREAKER AND APPARAUS AND INTERNET OF THINGS USING THE SAME
    4.
    发明申请
    METHOD FOR MONITORING CIRCUIT BREAKER AND APPARAUS AND INTERNET OF THINGS USING THE SAME 审中-公开

    公开(公告)号：WO2020029155A1

    公开(公告)日：2020-02-13

    申请号：PCT/CN2018/099534

    申请日：2018-08-09

    Applicant: ABB SCHWEIZ AG ,  RUAN, Jiayang ,  CHEN, Niya ,  YU, Rongrong

    Inventor： RUAN, Jiayang ,  CHEN, Niya ,  YU, Rongrong

    IPC: G01R31/327 ,  G06F17/16

    Abstract: It provides a method for monitoring condition of a fleet of circuit breakers and a system and an internet of things using the same. The method includes: (a) measuring at least one type of operating condition related signal for the respective circuit breakers during their operation; (b) obtaining a set of feature data representing the respective measurements of operating condition related signal; (c) performing cluster analysis of the set of feature data based on a similarity threshold; and (d) generating a signal indicating the condition of the fleet of circuit breakers based on the cluster number resulted from the step (c). Rather than comparing the data representing the measurements of operating condition related signal to a reference model built on CB's normal data, The method applies cluster analysis of the set of feature data representing the respective measurements of operating condition related signal, does not need a reference "normal" database for comparison.

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