GW9 outdoor high-voltage isolation switch
Short Description:
GW9 outdoor high-voltage isolation switch is an AC 50Hz outdoor high-voltage electrical equipment with rated voltage levels of 10kV, 15kV, and 24kV. It is used for opening and closing high-voltage lines under no-load conditions, as well as for electrically isolating high-voltage lines with live electrical equipment such as high-voltage busbars and circuit breakers under maintenance. It can also be used for opening and closing small capacitor or inductor currents.
Product details
summary:
GW9 outdoor high-voltage isolation switch is an AC 50Hz outdoor high-voltage electrical equipment with rated voltage levels of 10kV, 15kV, and 24kV. It is used for opening and closing high-voltage lines under no-load conditions, as well as for electrically isolating high-voltage lines with live electrical equipment such as high-voltage busbars and circuit breakers under maintenance. It can also be used for opening and closing small capacitor or inductor currents.
This series of outdoor isolating switches meets the relevant provisions of GB1985 "AC High Voltage Isolating Switches and Grounding Switches", IEC60129 "AC Isolating Switches and Grounding Switches", GB/T11022 "Common Technical Requirements for High Voltage Switchgear and Control Equipment Standards" and other standards.
Normal usage conditions:
◇ Altitude not exceeding 1000m;
Surrounding air temperature: upper limit+40 ℃, lower limit -30 ℃ in general areas, -40 ℃ in high-altitude areas;
The wind pressure shall not exceed 700Pa (equivalent to a wind speed of 34m/s);
The seismic intensity shall not exceed 8 degrees;
◇ Places without frequent and severe vibrations;
Ordinary installation sites should be free of gases, vapors, chemical deposits, salt spray, dust, and other explosive and corrosive substances that seriously affect the insulation and conductivity of isolation switches;
Anti pollution type is suitable for heavily polluted areas, but should not contain substances that can cause fires or explosions.
Main technical parameters:
Project unit parameters
Rated voltage kV 10 18 20
Rated working voltage kV 12 17.5 24
Rated insulation level 1-minute power frequency withstand voltage (effective value) to ground kV 42 55 65
Fracture 48 65 79
Lightning impulse withstand voltage (peak) to ground 75 105 125
Fracture 85 120 145
Rated frequency Hz 50
Current in eastern Hubei: A 200 400 630 1250 400 630
4s short-time withstand current KA 6.3 12.5 20 31.5 16 20
Rated peak withstand current KA 16 31.5 50 80 40 50
Creepage distance mm 300 380
Mechanical lifespan: 2000, 2000, 2000
Appearance and installation dimensions:
