| 摘要 |
<p>HIGH CONTINUOUS CURRENT CAPACITY OIL EXPULSION FUSE An oil expulsion fuse has multiple rupture-resistant fuse wire chambers for providing fault current protection in high voltage distribution circuits in the 25-35 KV range. In preferred forms, the fuse has a Teflon (a Trademark) core defining three discrete, small diameter cylindrical chambers, 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 chambers, even in t he face of high recovery voltage rates associated with distribution voltages above 15 KV. The ampacity of the fuse per unit cross-sectional area of fuse wire is increased over single wire fuses by virtue of greater heat loss by transverse convection from the multiple wires to oil in the chambers.</p> |
