GW23(GT9)-252D/2500-50 double-column (horizontal break) folding outdoor AC high-voltage disconnector is suitable for systems with AC frequency of 50Hz and rated voltage of 220kV, which is used for electrical isolation of high-voltage lines, circuit breakers and other electrical equipment under the condition of no load, and can also be used for reverse operation.
1. Advanced friction contact
Good electrical conductivity
A low loop resistance is guaranteed
Each contact is equipped with its own spring
The spring does not carry current and has a long life
2.The two states of opening and closing can be selifocking,which can efectively prevent the dymamic and static contacts from detaching due to the infuenc of wind and electic power,
3. The transmission link adopts oi-free bearings and copper alloy bushings, which have selflubricating abiity and reduce rust and stagnation in the rotating link;,
4, Use anti-rust aluminum and stainless steel materials to avoid surface corrosion;
5. Diferent swrtace treatment metods are selented acordinato he place ofuse,indudinohotdio avanlzing and paintig Dagomet nicke-ohosphons aloy composite natig eirc: The nickel.phosphorus alloy composite plating process is used for the transmission parts, and the wear resistance is more superior than that of Dacromet;
6. The main switch is three-pole linkage, with two operation modes: electric and manual;
7. Equipped with grounding switch
Manual operation
Same short-circuit current carrying capacity as disconnector
It has electrical and mechanical double interlocking with the disconnector
8. Equipped with ice-breaking device
9.Large contact range of dynamic and static contacts
10. Return spring and clamping spring are used to make the tightening process stable and the clamping force is constant and reliable
11. The silver-plated surface is coated with new electronic oil to effectively delay the oxidation of the silver laver.
Technical parameters