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GW5 series disconnector is one of the most commonly used disconnector types with one switch base for three phases in the world which both insulators is V type layout and rotate to open and close the switch.
Features:
Rated voltage from 40,5 to 126kV;
Reliable in adverse operating conditions such as high winds and heavy ice;
High short circuit carrying capacity up to 40kA;
Long mechanical endurance 5000;
Free maintenance design, the two insulator rotate on weather-sealed, rotor bearing requires no maintenance;
rectangular aluminum tube arm and silver-plated contact finger;
Low operating torque;
Galvanized structural steel channel base assures high strength and rigid design;
Corrosion free materials mean virtually no maintenance;
Easy start-up and commissioning;
Modular design and Supplied or easily retro-fitted with 1 or 2 earthing switches;
esigned according to IEC,GB
|
Type |
GW5－40.5 |
GW5－72.5 |
GW5 |
|
Rated voltage kV |
40.5 |
72．5 |
126 |
|
Rated frequency Hz |
50/60 |
|
Rated current A |
630/1250/1600/2000 |
|
Rated short-duration power frequency withstand voltage(1min )
kV |
Across the isolating distance |
118 |
180 |
230+70 |
|
To earth |
95 |
140 |
230 |
|
Rated lightning impulse withstand voltage kV |
Across the isolating distance |
215 |
385 |
550+100 |
|
To earth |
185 |
325 |
550 |
|
Rated short-time withstand current kA |
20/31.5/40 |
|
Rated duration of short- circuit s |
4 |
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Rated peak withstand current kA |
50/80/100 |
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