Vibration analysis for diagnostic testing of circuit-breakers

Author

Runde, M. ; Ottesen, G.E. ; Skyberg, B. ; Ohlen, M.

Author_Institution

Norwegian Electr. Power Res. Inst., Trondheim, Norway

Volume

11

Issue

4

fYear

1996

fDate

10/1/1996 12:00:00 AM

Firstpage

1816

Lastpage

1823

Abstract

In order to assess the feasibility of vibration analysis for the diagnostic testing of high-voltage circuit breakers, a comprehensive field test program has been carried out. Vibration patterns from 31 breakers (93 identical single-phase units) have been acquired, compared and analyzed. The breakers were assumed to be in good condition with no known irregularities at the time of testing. However, several serious faults, including an incipient rupture of the contact plug shaft, an incorrectly assembled crank, and major lubrication problems were disclosed. Thus, this “blind test” performed under realistic conditions on circuit breakers in normal service demonstrates that vibration analysis can be a reliable and suitable tool for noninvasive diagnostic testing

Keywords

circuit breakers; electrical faults; nondestructive testing; switchgear testing; vibration measurement; blind test; contact plug shaft; field test programme; high-voltage circuit breakers; incipient rupture; incorrectly assembled crank; lubrication problems; noninvasive diagnostic testing; serious faults; vibration analysis; Assembly; Circuit breakers; Circuit faults; Circuit testing; Lubrication; Pattern analysis; Performance analysis; Performance evaluation; Plugs; Shafts;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.544262

Filename

544262