Hybrid particle traps and conditioning procedure for gas insulated transmission lines

Patent · Tue May 18 04:00:00 EDT 1982

OSTI ID:5198963

Cookson, A H; Dale, S J

A gas insulated transmission line includes an outer sheath, an inner conductor within the outer sheath, insulating supports supporting the inner conductor within the outer sheath, and an insulating gas electrically insulating the inner conductor from the outer sheath. An apertured particle trapping ring is disposed within the outer sheath, and the trapping ring has a pair of dielectric members secured at each longitudinal end thereof, with the dielectric members extending outwardly from the trapping ring along an arc. A support sheet having an adhesive coating thereon is secured to the trapping ring and disposed on the outer sheath within the low field region formed between the trapping ring and the outer sheath. A conditioning method used to condition the transmission line prior to activation in service comprises applying an ac voltage to the inner conductor in a plurality of voltage-time steps, with the voltage-time steps increasing in voltage magnitude while decreasing in time duration.

• Assignee: Department Of Energy
• Patent Number(s): US 4330682
• OSTI ID: 5198963
• Country of Publication: United States
• Language: English

Related Subjects

200300* -- Electric Power Engineering-- Power Transmission & Distribution-- (-1989)
24 POWER TRANSMISSION AND DISTRIBUTION
CABLES
COATINGS
CONDUCTOR DEVICES
DESIGN
DIELECTRIC MATERIALS
ELECTRIC CABLES
ELECTRIC CONDUCTORS
ELECTRICAL EQUIPMENT
EQUIPMENT
GAS-INSULATED CABLES
MATERIALS
MOBILITY
PARTICLE MOBILITY
PARTICLE PRODUCTION
POWER TRANSMISSION LINES
TRAPS