DIN EN 50209 VDE 0530-33:1998-11

The document applies to rotating electrical machines with rated voltages (UN) from 5 kV to 24 kV inclusive and with rated output from 5 MVA upwards for generators and from 5 MW upwards for motors. Requirements for machines with rated voltage above 24 kV should remain the subject of individual agreement. It is also applicable to machines with rated outputs between 1 MVA (1 MW) and 5 MVA (5 MW) and with rated voltages of 5 kV and above, provided its use has been agreed beforehand. In the case of machines whose windings are cured in the stator, tests on the separate winding elements are not possible. For these machines the requirements in Part B apply. The test of the conductor lamination insulation must be carried out in accordance with 2.3 of Part A.