Electrical distribution apparatus having fused draw-out surge ar

Details Electrical distribution apparatus having fused draw-out surge ar Electrical distribution apparatus having fused draw-out surge ar

1987-07-17

1988-05-10

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Transformer protection

361 38, 361349, 337 31, 337 34, H02H 704

Patent

active

047439963

ABSTRACT:
Electrical distribution apparatus, such as a pad-mounted electrical distribution transformer, including an electrically grounded tank, an electrical element in the tank, and a draw-out surge arrester assembly which extends into the tank. The draw-out surge arrester assembly includes a housing, and a draw-out device removably disposed in the housing. The draw-out device includes a fuse connected in series with the surge arrester, between the electrical element and grounded tank, with the fuse being sized to isolate the surge arrester from the electrical element, should the surge arrester fail to recover properly from a voltage surge.

REFERENCES:
patent: 1988683 (1935-01-01), Diehl
patent: 2918557 (1959-12-01), Link
patent: 3313983 (1967-04-01), Mallett et al.
patent: 3916260 (1975-10-01), Westrom et al.
patent: 3953818 (1976-04-01), Martin et al.

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