Title:
PRESSURE RELIEF FOR CURRENT LIMITER
Document Type and Number:
WIPO Patent Application WO2004095491
Kind Code:
A3
Abstract:
A current-limiting device is provided with pressure relief facilities that are responsive to relieve internal pressured during operation of the current limiter. In a specific arrangement, the pressure relief arrangement includes a passage that is opened upon operation of the current limiter to communicate between the interior and the exterior of the current limiter. The passage includes a fusible material therein that is melted by the heating within current limiter under predetermined high-current fault conditions. In a specific arrangement, the passage is formed through a contact terminal of the current limiter. In one arrangement, the current-limiting device includes an adjoining exhaust section and the contact terminal extends into the adjoining exhaust section.
Inventors:
BORCHARDT GLENN R (US)
Application Number:
PCT/US2004/008017
Publication Date:
February 10, 2005
Filing Date:
March 18, 2004
Export Citation:
Assignee:
S & C ELECTRIC CO (US)
BORCHARDT GLENN R (US)
BORCHARDT GLENN R (US)
International Classes:
H01H85/43; (IPC1-7): H01H85/00; H01H85/43
Foreign References:
| FR1263472A | 1961-06-09 | |||
| US5235307A | 1993-08-10 |
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