Gas insulated device and failure rating method

Details Gas insulated device and failure rating method Gas insulated device and failure rating method

2005-02-01

2005-02-01

Sircus, Brian (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

C361S132000

Reexamination Certificate

active

06850399

ABSTRACT:
The present invention combines sensor portions22,23of the device for measuring either current flowing through the line from the power inlet to the power outlet or voltage, or both, and bushings150, 160installed at either the power inlet or the power outlet, or both, so as to reduce the size of the gas insulating apparatus. Specifically, the above-mentioned sensor portions22,23are installed in the space inside the porcelain tube15that constitutes the bushings150, 160. As this space, it is preferable to use the space on the outer-periphery side of the electric field relaxation member21provided inside the porcelain tube15.

REFERENCES:
patent: 4810840 (1989-03-01), Okuno
patent: 6256592 (2001-07-01), Roberts et al.
patent: 50-78845 (1975-06-01), None
patent: 58-39203 (1983-03-01), None
patent: 8-124753 (1996-05-01), None
patent: 8-275323 (1998-08-01), None
patent: 10-210613 (1998-08-01), None

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