Title:
METHOD AND DEVICE FOR MONITORING A CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2020/132836
Kind Code:
A1
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.
Inventors:
CHEN NIYA (CN)
RUAN JIAYANG (CN)
RUAN JIAYANG (CN)
Application Number:
PCT/CN2018/123232
Publication Date:
July 02, 2020
Filing Date:
December 24, 2018
Export Citation:
Assignee:
ABB SCHWEIZ AG (CH)
CHEN NIYA (CN)
RUAN JIAYANG (CN)
CHEN NIYA (CN)
RUAN JIAYANG (CN)
International Classes:
G01M13/00; G01H17/00
Foreign References:
| CN103308292A | 2013-09-18 | |||
| CN102901622A | 2013-01-30 | |||
| JPH0798263A | 1995-04-11 | |||
| CN103487749A | 2014-01-01 | |||
| CN106646205A | 2017-05-10 | |||
| CN1595188A | 2005-03-16 | |||
| US20170045481A1 | 2017-02-16 | |||
| US20140069195A1 | 2014-03-13 |
Other References:
KANG P ET AL., CONDITION MONITORING OF POWER TRANSFORMER ON-LOAD TAP-CHANGERS
See also references of EP 3903085A4
See also references of EP 3903085A4
Attorney, Agent or Firm:
KING & WOOD MALLESONS (CN)
Download PDF: