transformer
1. Latitude: 1000M
2. Ambient temperature: +40 -25
3. Relative humidity: 95%, 90%

transformer

1. Rated high-voltage:20kV Connection group: Dyn11 or Yyno
2. Rated low-voltage:0.4kV Insulating level: L1 125AC 50/L1 0AC3
3. Tapping range of high voltage: 5% or 2 2.5%.
Ambient condition
1. Latitude: 1000M
2. Ambient temperature: +40 -25
3. Relative humidity: daily average 95%, monthly average 90%
4. Earthquake intensity: 8 degree
5. Outer insulation creepage distance: indoor 20mm/kv, outdoor 30mm/kv.