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(11) | EP 0 246 820 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Electrical distribution apparatus having fused draw-out surge arrester |
(57) A pad-mounted electrical distribution transformer (10) including an electrically
grounded tank (12), an electrical element in the tank, and a draw-out surge arrester
assembly (200) which extends into the tank. The draw-out surge arrester assembly includes
a housing (202), and a draw-out device (204) removably disposed in the housing. The
draw-out device includes a fuse (292) 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. |