Brand | Switchgear parts |
Model NO. | HV Drop Out Fuse |
Rated voltage | 27kV |
Rated normal current | 200A |
Rated short circuit breaking current | 10kA |
Series | WYF-22 WYF-23 WYF-24 |
Outdoor high-voltage AC drop out fuses (hereinafter referred to as "fuses") are suitable for outdoor overhead distribution systems with a rated frequency of 50Hz and rated voltage, as protective components for circuits or electrical equipment in the event of overload or short circuit faults in the power system. When the fuse operates normally, it is connected in series in the power line, with the fuse in a taut state and the movable joint locked. When a fault occurs in the circuit, the fault current causes the fuse to melt, the movable joint to be released, and the fuse tube to quickly fall, cutting off the circuit and providing safety protection for the maintenance of the circuit and equipment. Load type fuses add elastic contacts and arc extinguishing covers on the basis of ordinary types, used for switching load currents in power systems. The fuse complies with technical standards such as GB/T 15166.3-2008 "High Voltage AC Fuses Part 3: Spray Fuses" and DL/T 640-1997 "Technical Conditions for Ordering Outdoor AC High Voltage Drop out Fuses and Fuses"