Title:
METHOD FOR MONITORING CIRCUIT BREAKER AND APPARATUS AND INTERNET OF THINGS USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2019/075612
Kind Code:
A1
Abstract:
A method for monitoring a circuit breaker, a system and an internet of things using the same. The method includes: measuring at least two operating condition related parameters of the circuit breaker during operation of the circuit breaker; obtaining first data representing a vector having at least two components respectively representing the at least two measurements of the at least two parameters; judging location of the vector represented by the obtained data with respect to a vector space having an envelope separating healthy and unhealthy status of the circuit breaker, where the envelope has at least one portion of curvature; and generating a signal indicating the health status of the circuit breaker in consideration of the location of the vector if it is outside of the envelope. By cutting off the vertices of the envelope conventionally in a linear shape and supplementing with each cut-off with a curvature, the newly adapted envelope takes the form of an ellipse having at least one portion of curvature. Therefore, both of the missed fault identification and the false alarm happened in the conventional solutions may be overcome.
Inventors:
CHEN NIYA (CN)
YU RONGRONG (CN)
RUAN JIAYANG (CN)
YU RONGRONG (CN)
RUAN JIAYANG (CN)
Application Number:
PCT/CN2017/106364
Publication Date:
April 25, 2019
Filing Date:
October 16, 2017
Export Citation:
Assignee:
ABB SCHWEIZ AG (CH)
CHEN NIYA (CN)
YU RONGRONG (CN)
RUAN JIAYANG (CN)
CHEN NIYA (CN)
YU RONGRONG (CN)
RUAN JIAYANG (CN)
International Classes:
H01H33/66
Domestic Patent References:
| WO2016176913A1 | 2016-11-10 | |||
| WO2017060080A1 | 2017-04-13 |
Foreign References:
| CN202650951U | 2013-01-02 | |||
| CN101149420A | 2008-03-26 | |||
| CN102269650A | 2011-12-07 | |||
| EP1022632A1 | 2000-07-26 | |||
| CN105628419A | 2016-06-01 | |||
| EP3293853A1 | 2018-03-14 | |||
| US20020123864A1 | 2002-09-05 | |||
| US20160246185A1 | 2016-08-25 | |||
| US20060006997A1 | 2006-01-12 | |||
| US20160299192A1 | 2016-10-13 | |||
| US20170194113A1 | 2017-07-06 | |||
| US20170047186A1 | 2017-02-16 |
Other References:
FEIZIFAR BEHNAM ET AL.: "Condition monitoring of circuit breakers: Current status and future trends", IEEE INTERNATIONAL CONFERENCE ON ENVIRONMENT AND ELECTRICAL ENGINEERING AND 2017 IEEE INDUSTRIAL AND COMMERCIAL POWER SYSTEMS EUROPE (EEEIC / I&CPS EUROPE, 2017
See also references of EP 3698388A4
See also references of EP 3698388A4
Attorney, Agent or Firm:
BOSS & YOUNG PATENT AND TRADEMARK LAW OFFICE (CN)
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