This European Standard covers dry type transformers from 100 kVA to 3 150 kVA intended for operation in three phases distribution networks, for indoor continuous service, 50 Hz, natural cooling, with two windings:
- a primary (high voltage) winding with a highest voltage for equipment of 3,6 kV to 36 kV;
- a secondary (low voltage) winding with a highest voltage for equipment not exceeding 1,1 kV.
The object of this European Standard is to lay down requirements related to electrical characteristics, dimensions and designs of three phases distribution dry type transformers. These transformers should be in accordance with EN 60076-11 for general requirements.