| Brand | : Helmerverken | 
                    
                                 
                  | Year of Manufacture | : 2003 | 
                    
                                 
                  | Condition | : Used | 
                    
                                 
                  | Basic Transformer Design | : Cast Resin | 
                    
                                 
                  | Ingress Protection | : IP00 | 
                    
                                 
                  | Classifications | : C2 - E2 - F1 | 
                    
                                 
                  | Application | : Power Transformer | 
                    
                                 
                  | Number of Phases | : Three-phase | 
                    
                                 
                  | Rated Power | : 1250 kVA | 
                    
                                 
                  | Cooling | : AN | 
                    
                                 
                  | Voltage Ratio | : 30 500/ 420 V | 
                    
                                 
                  | Prim .Ins. Level | : 36 kV | 
                    
                                 
                  | Sec. Ins. Level | : 1,1 kV | 
                    
                                 
                  | Voltage Regulation | : off-circuit, bolted links | 
                    
                                 
                  | Tapping Range | : +-2x2.5%, see table below | 
                    
                                 
                  | Temperature Class (HV/LV) | : Class F / Class F | 
                    
                                 
                  | Temperature Rise (HV/LV) | : 100/100 K | 
                    
                                 
                  | Frequency | : 50 Hz | 
                    
                                 
                  | Vector Group | : Dyn11 | 
                    
                                 
                  | Standards | : IEC 60076-11 | 
                    
                                 
                  | Impedance | : 6 % | 
                    
                                 
                  | Total Weigth | : 3800 kg | 
                    
                                                  |  | 
                    
                                                  |  | 
                    
                                                  | Tapping, Voltage | 
                    
                                                  |  | 
                    
                                                  | 2	31 500	V | 
                    
                                                  | 1	30 750	V | 
                    
                                                  | 0	30 000	V | 
                    
                                                  | -1	29 250	V | 
                    
                                                  | -2	28 500	V |