Product Overview
(H) GW9-35 series outdoor single-voltage AC disconnector is suitable for three-phase AC 50Hz, rated voltage 35KV and below high-voltage transmission and distribution lines, to cut off and close the single-phase or three-phase circuit with no load and voltage. Switches are available in 200, 400, 630 and 1000 A ratings. They are all composed of a base pillar insulator, a conductive part and a mechanism part. The gate knife structure is used to close the gate to cut off and close the line. Each phase blade is composed of two conductive plates, and the two sides of the blade are equipped with compression springs, and the contact pressure required by the switch blade can be obtained by adjusting the height of the spring. When the switch is opened and closed, the closing movement can be carried out with an insulated operating mechanism. The gate knife has a self-locking device.
Environmental Conditions
1) Installation site: Outdoor
2) Ambient temperature: +40, low -40 (ABB-15); The daily temperature difference does not exceed 25K
3) Altitude: no more than 2000m for ordinary type, no more than 4000m for tall type;
4) Wind speed: no more than 34m/s (equivalent to 700Pa);
5) Icing thickness: no more than 10mm;
6) Seismic intensity: not more than 8 degrees;
7) Solar radiation: 1000W/m2
8) The installation site should be free of gases, vapors, chemical depositions, salt spray, dust and dirt, and other explosive and corrosive media that seriously affect the insulation and conductivity of the beginning; The installation site should be free of frequent and violent vibrations.