Electricity: measuring and testing – Electromechanical switching device
Patent
1989-12-12
1991-02-26
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Electromechanical switching device
200148B, 324158R, G01R 3102
Patent
active
049964852
ABSTRACT:
Disclosed is a gas insulated switch device comprising at least two hollow cylindrical containers each accommodating top end portions of a system of line cables, and a disconnector having contacts coupled to the line cables via detachable conductors, wherein electrical tests on the cables, etc. in a first container can be conducted from a test window formed in a side wall of an adjacent second container, by means of a test tank attached thereto. The side walls of the first and second containers comprise a pair of opposing windows that are coupled to each other, via an electrically insulating spacer; branch conductors, which are disposed within the first container and have inner end portions that can be selectively coupled to the line cables or the contacts of the disconnector within the first container, comprise outer end portions projecting into the second container through the electrically insulating spacer disposed between two windows coupled to each other. The test tank, coupled to the test window of the second container, comprises test conductors which can be selectively coupled to: (1) the end portions of the branch conductors projecting into the second container, (2) the end portions of the branch conductors and the ends of the line cables within the second container, and (3) the contacts of the disconnector within the second container.
REFERENCES:
patent: 4687890 (1987-08-01), Yamamoto et al.
patent: 4774385 (1988-09-01), Toshima
patent: 4780577 (1988-10-01), Toshima
patent: 4821140 (1989-04-01), Takeuchi et al.
patent: 4821141 (1989-04-01), Torimi et al.
patent: 4835648 (1989-05-01), Yamauchi
Bischofberger et al., "Circuit-Breaker Type ELK with Closing Resistors", vol. 65, No. 4, Apr., 1978.
Eisenzopf Reinhard J.
Mitsubishi Denki & Kabushiki Kaisha
Mueller Robert W.
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