METHOD AND DEVICE FOR MONITORING CIRCUIT BREAKER

Title:

METHOD AND DEVICE FOR MONITORING CIRCUIT BREAKER

Document Type and Number:

WIPO Patent Application WO/2016/049825

Kind Code:

A1

Abstract:

A method for monitoring a circuit breaker is provided. The method comprises the following steps: obtaining (110) a characteristic force associated with an actuating mechanism (2) of the circuit breaker over the time；and determining (120) 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 (120) 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.

Inventors:

ZHUANG ZHIJIAN (CN)
YE XIN (CN)
LU CONGWEN (CN)

Application Number:

PCT/CN2014/087840

Publication Date:

April 07, 2016

Filing Date:

September 29, 2014

Export Citation:

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Assignee:

ABB TECHNOLOGY LTD (CH)
ZHUANG ZHIJIAN (CN)
YE XIN (CN)
LU CONGWEN (CN)

International Classes:

G01R31/327; G01M13/00

Foreign References:

CN102269650A	2011-12-07
CN102522268A	2012-06-27
CN103487748A	2014-01-01
CN203572932U	2014-04-30
US20140130575A1	2014-05-15
US6963203B2	2005-11-08

Other References: