Electricity: electrical systems and devices – Safety and protection of systems and devices – Transformer protection
Patent
1985-11-18
1987-07-07
Pellinen, A. D.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Transformer protection
337 20, 361127, H02H 704
Patent
active
046791132
ABSTRACT:
Electrical distribution apparatus, such as a pad-mounted electrical distribution transformer, which has an electrically grounded tank or casing. A surge arrester assembly includes a housing, and a draw-out surge arrester having first and second insulatively spaced electrical contacts, with the draw-out surge arrester being removably disposed in the arrester housing. The arrester housing has first and second insulatively spaced metallic end members, with the first metallic end member functioning as a mounting structure for mounting the arrester housing in a tank opening, and as an electrical contact which automatically connects the first electrical contact of the draw-out surge arrester to the grounded tank of the apparatus to be protected. The second metallic end member of the housing electrically connects the second electrical contact of the draw-out surge arrester to an electrical circuit point within the tank to be protected against voltage surges.
REFERENCES:
patent: 2271890 (1942-02-01), Rebhan
patent: 3040212 (1962-06-01), Hermann et al.
Book William J.
Grace James A.
Scott Julian C.
Ginsburg Morris
Pellinen A. D.
Studebaker B. R.
Westinghouse Electric Corp.
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