公开(公告)号：US20170250047A1

公开(公告)日：2017-08-31

申请号：US15593850

申请日：2017-05-12

Applicant: ABB Schweiz AG

Inventor： Zhijian Zhuang ,  Xin Ye ,  Luciano Chenet

IPC: H01H71/02 ,  G01L1/22 ,  G01R31/327

CPC classification number: H01H71/0264 ,  G01L1/22 ,  G01R31/3274 ,  H01H1/0015 ,  H01H11/0062 ,  H01H33/008 ,  H01H2033/6667 ,  H01H2239/052

Abstract: A pivot supporting structure for a circuit breaker and a circuit breaker. The pivot supporting structure comprises: a supporting body having a supporting hole for receiving and pivotally supporting a pivot pin connected to an actuating mechanism of the circuit breaker, wherein at least one strain gauge are mounted to the supporting body for sensing the force acting on the pivot supporting structure by the actuating mechanism. This pivot supporting structure can accurately sense the characteristic force applied, such that the contact force and mechanical characteristics of the circuit breaker can be on-line monitored.

公开(公告)号：US10211018B2

公开(公告)日：2019-02-19

申请号：US15593850

申请日：2017-05-12

Applicant: ABB Schweiz AG

Inventor： Zhijian Zhuang ,  Xin Ye ,  Luciano Chenet

IPC: G01R31/327 ,  H01H71/02 ,  H01H11/00 ,  G01L1/22 ,  H01H33/00 ,  H01H1/00 ,  H01H33/666

Abstract: A pivot supporting structure for a circuit breaker and a circuit breaker. The pivot supporting structure includes: a supporting body having a supporting hole for receiving and pivotally supporting a pivot pin connected to an actuating mechanism of the circuit breaker, wherein at least one strain gauge are mounted to the supporting body for sensing the force acting on the pivot supporting structure by the actuating mechanism. This pivot supporting structure can accurately sense the characteristic force applied, such that the contact force and mechanical characteristics of the circuit breaker can be on-line monitored.

公开(公告)号：US10408877B2

公开(公告)日：2019-09-10

申请号：US15185614

申请日：2016-06-17

Applicant: ABB Schweiz AG

Inventor： Zhijian Zhuang ,  Xin Ye ,  Congwen Lu

IPC: G01R31/327

Abstract: Embodiments of the present disclosure provide a method for monitoring a circuit breaker, comprising the following steps: obtaining a characteristic force associated with an actuating mechanism of the circuit breaker over the time; and determining the time point when the closing and/or opening of the circuit breaker occurs by identifying a variation of the force. The step of determining further comprises determining the moment when a variation increase of the characteristic force occurs as the time point of the closing of the circuit breaker; and determining the moment when a variation decrease of the characteristic force occurs as the time point of the opening of the circuit breaker. The method can be used to accurately on-line monitor the closing and opening time point of the circuit breaker.