Nitrogen filled transformer
It is suitable for methane gas and coal dust and other explosive danger in the mine.
Technical specifications
1) Rated power: 500kva
2) Number of phases: 3
3) Insulation: VPI
4) Primary voltage: 1000V (tapping:+3*5%)
5) Secondary voltage: 1000V
6) Frequency: 50Hz
7) Vector group: Dyn11
8) Copper windings
9) GNAN (include shell)
10) Primary: Delta Connected Winding
11) Secondary: Star Connected Winding
Including the earth screen shield.
