Title :
PowerformerTM-the prototype and beyond
Author :
Leijon, Mats ; Owman, Fredrik ; Johansson, Stefan G. ; Karlsson, Thommy ; Lindahl, Sture ; Parkegren, Christer ; Thorén, Stellan
Author_Institution :
ABB Corp. Res., Vasteras, Sweden
Abstract :
The general concept of PowerformerTM, a high voltage generator connected directly to the grid, is described. By using high-voltage cable technology it is possible to confine the electrical field to inside the winding and reach high voltage levels on the generator terminals. The prototype high-voltage generator rated at 45 kV, 11 MVA has been operating since spring 1998. The accumulated operating time is now 3700 hours. Some test results are presented. Contracts for two Powerformer generators have been granted, one turbogenerator rated at 136 kV, 42 MVA and a hydropower generator rated at 155 kV. 75 MVA. Some data and background information for these two units is presented
Keywords :
AC generators; hydroelectric generators; power cables; power transformers; turbogenerators; 11 MVA; 136 kV; 155 kV; 42 MVA; 45 kV; 75 MVA; Powerformer; electrical field confinement; high voltage generator; high voltage levels; high-voltage cable technology; hydropower generator; turbogenerator; Cable insulation; Conducting materials; Cooling; Machine windings; Power cable insulation; Power cables; Power generation; Prototypes; Stator cores; Stator windings;
Conference_Titel :
Power Engineering Society Winter Meeting, 2000. IEEE
Print_ISBN :
0-7803-5935-6
DOI :
10.1109/PESW.2000.849944
