Evaluation of the effect of pressurized bushings on seismic qualification of SF sub 6 circuit breakers

Journal Article · Sun Apr 01 00:00:00 EST 1990 · IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (USA)

DOI:https://doi.org/10.1109/61.53107· OSTI ID:6731456

Okuno, M; Setoyama, T; Murase, S ^[1]; Hellested, R ^[2]

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1. Mitsubishi Electric Corp., Amagasaki, Hyogo (Japan)
2. WM Power Products Inc., Pittsburgh, PA (US)

Stresses on the porcelain of high voltage switchgear under seismic vibration are statically biased by internal pressure. However, restrictions from the seismic test facility pose some difficulties in practical procedure of test with pressure. This paper discusses the effect of pressure on the strain and proposes an equivalent test method to simulate a pressurized condition without actually filling the SF{sub 6} gas to the operating pressure.

• OSTI ID: 6731456
• Journal Information: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (USA), Vol. 5:2; ISSN 0885-8977
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
POWER SYSTEMS
SEISMIC EFFECTS
CIRCUIT BREAKERS
EARTHQUAKES
ENVIRONMENTAL IMPACTS
IN-SERVICE INSPECTION
RESPONSE FUNCTIONS
SILICON FLUORIDES
ELECTRICAL EQUIPMENT
ENERGY SYSTEMS
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
FLUORIDES
FLUORINE COMPOUNDS
FUNCTIONS
HALIDES
HALOGEN COMPOUNDS
INSPECTION
SEISMIC EVENTS
SILICON COMPOUNDS
240500* - Power Transmission & Distribution- Environmental Aspects- (1990-)
240100 - Power Systems- (1990-)