Description
Specifications
Environmental Conditions
Overall dimension
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Description
GNF38-12 12kV series of indoor disconnecting switch is designed and manufactured to meet the needs of the development of fixed high-voltage cabinets and ring network cabinets towards compactness and miniaturisation. The switch is designed and manufactured to meet the needs of the development of fixed high-voltage It has a three-position structure, fully insulated base plate structure, fully insulated base plate, and equipped with coaxial locking and perfect mechanical interlocking mechanism. mechanical interlocking mechanism, compact and small in appearance. It is a compact box-type switch. It is the best option for compact box-type switchgear.
Specifications
Product model specifications | GNF38-12/630-20 | GNF38-12/1000-31.5 | GNF38-12-1250-31.5 | |
Item | GNF38-12D/630-20 | GNF38-12D/1000-31.5 | GNF38-12D-1250-31.5 | |
Rated voltage (kV) | 12 | 12 | 12 | |
Maximum voltage (kV) | 12.7 | 12.7 | 12.7 | |
Rated current (A) | 630 | 1000 | 1250 | |
Thermal stability current (kA) | 20 | 31.5 | ||
Thermal stabilization time (s) | 4 | |||
Dynamic stable current (kA) | 50 | 80 | ||
Rated insulation level | Lightning impulse voltage (kV) | Interphase Phase to ground 75 Fracture 85 | ||
1min power frequency withstand voltage (kV) | Interphase Phase to Ground 42 Fracture 48 | |||
Environmental Conditions
Ambient Conditions:
1.Ambient temperature: -25°C ~ +40°C;
2.Altitude: ≤2000m;
3.Relative humidity: daily average ≤95%, monthly average ≤90%;
4.Earthquake intensity: ≤8 level;
5.Installation places: no fire, explosion hazard, serious filthy, chemical corrosion or severe vibration.
Overall dimension
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