(H) GW9-35 Series Outdoor Single Pole High Voltage AC Isolation Switch

Overview

(H) The GW9-35 series outdoor single voltage AC isolation switch is suitable for three-phase AC 50Hz, rated voltage 35KV and below high-voltage transmission and distribution lines, used to cut off and close single-phase or three-phase circuits with no load and voltage. The rated current of the switch is 200, 400, 630, and 1000A. They all consist of base pillar insulators, conductive parts, and structural parts. Adopting a knife type structure to close and cut off the circuit. Each phase switch blade is composed of two conductive pieces, and compression springs are installed on both sides of the blade. Adjusting the height of the springs can obtain the contact pressure required for the switch blade. The insulation operating mechanism can be used to perform closing movement when opening and closing the switch. The knife switch has a self-locking device.

ambient condition

1) Installation location: Outdoor

2) Environmental temperature:+40, low -40 (abb-15); Daily temperature difference not exceeding 25K

3) Altitude: ordinary type not exceeding 2000m, plateau type not exceeding 4000m;

4) Wind speed: not exceeding 34m/S (equivalent to 700Pa);

5) Ice thickness: not exceeding 10mm;

6) Seismic intensity: not exceeding 8 degrees;

7) Sunlight radiation: 1000W/m2

8) The installation site should be free of gases, vapors, chemical deposits, salt spray, dust, dirt, and other explosive or corrosive media that seriously affect the insulation and conductivity of the opening; The installation site should be free from frequent and severe vibrations.

Technical Parameter

Table 1: Main Technical Parameters

Table 2: Contact Pressure of Contact Points