3-phase mineral oil-immersed power transformer

· KS 11 series mining transformers are suitable for the central substation of underground coal mine, well bottom yard, total air duct and main air duct. There is gas but no explosion risk. It is also suitable for the more humid environment of tunnels.

· Normal environment use conditions: the altitude shall not exceed 1000m. The ambient temperature was maximum + 40℃ and minimum-25℃.

· Special environment conditions: altitude over 1000m.

·The ambient temperature was maximum + 40℃ and minimum-45℃.(Details when ordering) · The relative humidity of the surrounding air is not greater than 95% (+ 25℃).

· No strong turbulence and the inclination with the vertical surface not exceeding 35°.

Performance Characteristic

·Tank structure,strong,can bear the pressure test of an atmospheric pressure,there is no storage tank lid tank walls on both sides of the welding of high and low voltage cable junction box,for the use of cable wiring.High voltage coil with rated voltage and the voltage of plus or minus 5%points,using tap-changer transform voltage,voltage transformation must cut off power supply first,and then remove the box wall tap-changer change points after the storm of the hood.

·the low voltage side of transformer to allow "Y"shaped into 690 v power supply,also can convert into a delta form into 400 v power supply.the cable terminal box directly to the subprime end raises six porcelain jacket for modified by the user.

·The lift,the transformer is to use the box wall hanging welding by mixing,transformer with the car at the bottom of bracket,equipped with mounting holes on the bracket,for the mine will be required to have car wheel.

Technical Parameters