Effects of Running a 50 Hz Alternator at 60 Hz: Voltage, Power Factor, Harmonics, Windings

Hello All:

Please, I need your help.

My company bought in Europe a 50 Hz alternator driven by a gas turbine; however, it must work to 60 Hz here in place. We know speed of the gas turbine must be raised in order to match the generator required speed to provide 60 Hz.  Electrical questions are:

1.) If the alternator was designed for work on 50 Hz, which parameters will be changed when the output frequency rise?... Power factor?... Output voltage?... Harmonics?... any other?

2.) Has the increased frequency a bad effect over electrical components of the alternator?... Rotor (field) winding?... Stator windings?... Exciter?...

Attached are the electrical characteristics of the alternator we pretend to work on 60 Hz.

Thanks in advance for your attention and help!!!...

Regards,


Ceo Suárez.

 

Hi,

Generally, the frequency is the one being changed to achieve 60 Hz Alternator. Here is some discussions from another forum that might help, http://www.eng-tips.com/viewthread.cfm?qid=143340

Kevin, thank you very much.

So, the fact will be with the voltage regulator which must be adjusted to the correct value... and that's all; isn't it?

Thanks, again.

you must adjust to the correct value...