Gas insulated switchgear

Details Gas insulated switchgear Gas insulated switchgear

1986-04-03

1987-08-18

Envall, Jr., Roy N.

Electricity: electrical systems and devices

Safety and protection of systems and devices

High voltage dissipation

200148R, 361 14, 361115, H02H 100

Patent

active

046881360

ABSTRACT:
A protective device in a gas insulated switchgear having a housing providing a gas chamber containing a gaseous medium and insulating a bus bar circuit inside the gas chamber. The protective device includes a fault detector outside the gas chamber and connected to the bus bar circuit to detect a fault and an arc detector inside the gas chamber to detect an arc generated upon the occurrence of a fault. A circuit interrupter connected in the bus bar circuit is operated responsive to the concurrent operation of the detectors.

REFERENCES:
patent: 3881766 (1975-05-01), Pratsch
patent: 4275431 (1981-06-01), Swoish et al.
patent: 4485422 (1984-11-01), Takanashi
patent: 4492831 (1985-01-01), Oakes
patent: 4493009 (1985-01-01), Lorenz et al.
patent: 4528437 (1985-07-01), Burnett et al.
patent: 4536814 (1985-08-01), Theisen et al.
patent: 4570202 (1986-02-01), Nishida et al.

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