H - Electricity – 01 – H
Patent
H - Electricity
01
H
306/148
H01H 33/68 (2006.01)
Patent
CA 1130350
HIGH CONTINOUS CURRENT CAPACITY OIL EXPULSION FUSE Abstract of the Disclosure An oil expulsion fuse has multiple rupture-resistant fuse wire arc bores for providing fault current protection in high voltage distribution circuits in the 25-35 KV range. In preferred forms, the fuse has a Teflon core defining three discrete, small diameter cylindrical bores, each containing a respective fuse wire, whereby sufficient deionizing gas flow is generated upon fusing of the wires to effectively extinguish arcs formed in the bores, even in the face of high recovery voltage rates associated with distribution voltages above 15 XV. The multiple bores communicate with common chambers at respective ends thereof which are vented to allow connective oil flow through the fuse during normal operation. One chamber has a larger effective vent area than the other and the chambers at opposite ends of the fuse intercommunicate so that upon sequential melting of the fuse wires which occurs during fault interruption, the greater resistance to gas expulsion at one end of the fuse than the other causes gas to be directed down through the bores to prevent arc restrike.
342552
Chance (a. B.) Company
Gowling Lafleur Henderson Llp
LandOfFree
High continuous current capacity oil expulsion fuse does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High continuous current capacity oil expulsion fuse, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High continuous current capacity oil expulsion fuse will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-175682