LuGao stands as a dedicated 15KV Indoor Type Disconnector Switch manufacturer.GN22-12(C) disconnector is an indoor high-voltage switchgear designed for use in power systems with three-phase AC 50Hz and a rated voltage of 12kV. Its primary function is to connect, disconnect, or switch lines under voltage conditions when there is no load on the equipment.
Lugao is a 15KV Indoor Type Disconnector Switch supplier.GN22-12 indoor high-voltage disconnect switch is suitable for a rated voltage of 10kV, three-phase AC 50Hz, and is utilized in high-voltage switchgear within the power system as a circuit breaker under voltage conditions with no load. The switch features a novel, reasonable, and unique structural design. It employs a two-step action locking method, providing excellent dynamic and thermal stability with low operating force. The use of epoxy resin, insulators, and silver-plated brushes, along with new materials and processes, ensures good conductivity, compact size, and light weight. The outgoing terminals facilitate easy connection with vacuum circuit breakers and oil circuit breakers, reducing the volume of switch cabinets, minimizing transition joints, and lowering costs.
Installation method: side-mounted, middle-mounted
Ambient air temperature: upper limit +40C, lower limit -30C; ;
Altitude: ≤2000m (if the altitude needs to be increased, the rated insulation level should be increased accordingly);
Wind pressure: no more than 700Pa (equivalent to wind speed of 34m/s);
Amplitude: earthquake intensity 8 degrees;
Contamination level: Class I;
Maximum daily temperature difference: no more than 25C.
item | unit | data | ||
rated voltage | kV | 12 | ||
rated frequency | Hz | 50 | ||
rated current | A | 1600~2000 | 2500~3150 | |
rated short time withstand current | kA | 40 | 50 | |
rated peak withstand current | kA | 100 | 125 | |
rated short circuit duration | s | 4 | ||
rated insulation level | 1 min power frequency withstand voltage | kV | pole to pole and pole to ground 42 fracture 40 | |
lightning impulse withstand voltage(peak) | kV | inter pole and pole to ground 75 fracture 85 |