NDLI: Experimental investigation of influence of a contact separation time on the breaking capacity of a vacuum circuit breaker

Content Provider	IEEE Xplore Digital Library
Author	Lavrinovichi, V.A. Popov, S.A. Schneider, A.V. Batrakov, A.V.
Copyright Year	2014
Description	Author affiliation: Inst. of High-Current Electron., Tomsk, Russia (Popov, S.A.; Schneider, A.V.; Batrakov, A.V.) \|\| Nat. Res. Tomsk Polytech. Univ., Tomsk, Russia (Lavrinovichi, V.A.)
Abstract	In the present work, influence of the beginning of the contact opening of the vacuum circuit breaker on the main characteristics of the discharge and the breaking capacity of the breaker is studied. In the experiment, Cu-Cr bulk electrodes with a diameter of twenty millimeters were used. Synthetic circuit generated a half-sinusoidal current with duration of 10 ms and amplitude of 10 kA, followed by the transient recovery voltage with amplitude of 30 kV. The velocity of a movable electrode was close to 1.35 m/s. In the experiment, only the beginning of movement of electrode was changeable. All other parameters were fixed. Traces of arc voltage, post-arc current, Langmuir probe current, as well as images of the arcing gap were recorded and analyzed. The earlier electrode starts moving, the longer both time interval at arc operation and interelectrode gap distance during the arc. With this, radial contraction of the arc column is amplified, arc voltage increases, thermal energy dissipated in the anode increases also, and the breaking capacity goes down.
Sponsorship	Plansee
Starting Page	505
Ending Page	508
File Size	813559
Page Count	4
File Format	PDF
ISBN	9781479967506
e-ISBN	9781479967520
DOI	10.1109/DEIV.2014.6961730
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-09-28
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Probes Discharges (electric) Anodes Plasmas Interrupters Circuit breakers
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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