Bus mounted capacitor expulsion-type fuses

Details Bus mounted capacitor expulsion-type fuses Bus mounted capacitor expulsion-type fuses

H - Electricity

01

H

H01H 85/36 (2006.01) H01H 85/042 (2006.01) H01H 85/30 (2006.01) H01H 85/43 (2006.01) H01H 85/48 (2006.01) H01H 85/38 (2006.01)

Patent

CA 2047619

An electrical fault protective device for providing power interruption in electrical circuits rated at 10,000 amperes and above. The device comprises a single- or double-vented expulsion-type fuse, connected at one vented end to a hollow bus and at the other end to a conductive expansion chamber for a double-vent fuse or an electrical contact for a single-vent fuse. A spring located in the hollow bus is attached to the fusible link for pulling the fusible link from the fuse tube to rapidly extinguish the arc when the fuse blows. The fuse tube is also retractable into the hollow bus when the fuse blows to provide a visual indication of fuse operation and to relieve the dielectric stress on the fuse tube.

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