- #1
Jobrag
- 551
- 28
Why do alternator manufacturers fit PMGs to alternators that are not black start machines.
On site today we are doing some maintenance on a 27MW alternator, for this machine to run there must be electrical power available (to run oil pumps fans etc), so why do we need a PMG when we could supply power for excitation from another source?
On site today we are doing some maintenance on a 27MW alternator, for this machine to run there must be electrical power available (to run oil pumps fans etc), so why do we need a PMG when we could supply power for excitation from another source?