Overview
FDGW-40.5/200A windproof cut-out fuse is a 35kV drop-out fuse developed according to the wind farm, which can avoid accidents. In view of the factors such as fault-free drop, high-current operation and instability of wind farms, this outdoor high-voltage protection equipment combining disconnector and fuse is developed, and the function of disconnector is improved in the fuse body, and the protection function of fuse is retained. The windproof drop-out fuse increases the thickness of the upper and lower contact steel support plates, changes the contact points, and adopts copper alloy precision castings to increase the flow rate, avoid the increase of contact resistance and operation changes, change the contact structure of the upper contact, increase the auxiliary contacts, install the locking status card and parts, improve the material of the conductive sheet and increase the thickness, and better increase the elasticity. Auxiliary contacts are added to the contacts on the high-pressure melt pipe to avoid falling during operation or failure to fall, etc., and changing the closing contact structure can effectively prevent and control the wind speed of 50 meters. The high-pressure fuse is made of quaternary alloy material with a fusing temperature of 219 degrees, which effectively reduces the arcing time and arcing temperature of the fault current. Our company's products are equipped with fixed structural parts in the drainage line, which is not easy to resonate with the wire and contact part during operation, so as to avoid electric sparks during operation.