NDLI: Direct and automatic measurement of the overlapping time in GCB applications

Content Provider	IEEE Xplore Digital Library
Author	Maret, Y. Zlatanski, M. Marinkovic, S.
Copyright Year	2015
Description	Author affiliation: Corp. Res., ABB Schweiz AG, Baden-Dättwil, Switzerland (Maret, Y.; Zlatanski, M.; Marinkovic, S.)
Abstract	The overlapping time of double-contact circuit breakers is defined as the time delay elapsing between the opening of the nominal and the arcing contacts. It is an important criteria for the circuit breaker lifetime. It is usually determined indirectly on live breakers, e.g. derived from the number of breaking operations and the interrupted current amplitude, or directly during the breaker overhaul, using the dynamic resistance measurement (DRM) method. This paper presents a system which is able to perform a direct measurement of the overlapping time of a generator circuit breaker (GCB) with an accuracy better than hundred microseconds, which is up to an order of magnitude better than for DRM. The proposed method can be extended to measure the overlapping time online, i.e. on live GCBs.
Sponsorship	IEEE
Starting Page	003359
Ending Page	003363
File Size	339856
Page Count	5
File Format	PDF
e-ISBN	9781479917624
DOI	10.1109/IECON.2015.7392618
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-11-09
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Impedance Couplers Circuit breakers Time measurement Electrical resistance measurement Generators Monitoring segmentation GCB ablation online monitoring overlapping time dynamic resistance condition monitoring diagnostics lifetime change detection
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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