Hybrid particle traps and conditioning procedure for gas insulat

Details Hybrid particle traps and conditioning procedure for gas insulat Hybrid particle traps and conditioning procedure for gas insulat

1980-11-14

1982-05-18

Askin, Laramie E.

Electricity: conductors and insulators

With fluids or vacuum

With fluid maintenance or conditioning means

134 1, 134 42, 174 28, 361233, H01B 906, H01B 904, H02G 506, B08B 702

Patent

active

043306829

ABSTRACT:
A gas insulated transmission line includes an outer sheath, an inner condor 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.

REFERENCES:
patent: 3515939 (1970-06-01), Trump
patent: 3765941 (1973-10-01), Gordon
patent: 3792188 (1974-02-01), Cronin
patent: 3895176 (1975-07-01), Cookson et al.
patent: 3911937 (1975-10-01), Sletten et al.
patent: 4064353 (1977-12-01), Bolin
patent: 4084064 (1978-04-01), Bowman

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