Study of surface flashover of conical insulators using 3 ns risetime pulses

Conference · Wed Dec 31 23:00:00 EST 1975

OSTI ID:7357626

Anderson, R A

Polymethyl methacrylate (Plexiglas) insulators in the form of truncated cones were subjected in vacuum (10/sup -3/ to 10/sup -4/ Pa pressure) to high-voltage pulses having 3 ns risetime. The relationship between breakdown voltage, cone angle, and time delay prior to breakdown was as expected if flashover is due to a secondary electron emission avalanche at the insulator surface. Evidence was also obtained that insulators of conventional design may be subject to an anode-initiated surface flashover mechanism.

• Research Organization: Sandia Labs., Albuquerque, N.Mex. (USA)
• OSTI ID: 7357626
• Report Number(s): SAND-76-5237; CONF-760815-2
• Country of Publication: United States
• Language: English

Related Subjects

200301* -- Power Transmission & Distribution-- AC Systems
EHV & UHV-- (-1989)
24 POWER TRANSMISSION AND DISTRIBUTION
AC SYSTEMS
BREAKDOWN
CONES
CURRENTS
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
ELECTRICAL EQUIPMENT
ELECTRICAL INSULATORS
EQUIPMENT
ESTERS
FLASHOVER
HVAC SYSTEMS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PERFORMANCE TESTING
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
PLEXIGLAS
POLYACRYLATES
POLYMERS
POLYVINYLS
POWER SYSTEMS
TESTING