motor into a generator??

[mikec56]

Does anyone know if a typical 3 phase, 4 pole, induction motor that is rotated at 1500 rpm, can be used as a 3 phase generator producing nice sinusoidal waveform?

We would rotate this "generating" motor with another motor powered by a VFD. The equipment we are ultimately testing requires 50hz, 3 phase power. I'm sure we will have some issues to deal with regarding the output voltage level and efficiency of the system.

Our objective here is to build a 50hz generator from in-house surplus electrical pieces and 60hz service instead of renting the diesel units.

Thanks for your help. mikec56

 

[Skogsgurra]

There's a frequency inverter that outputs a CLEAN sine. But I not supposed to talk about that (have some shares in that company) :-(

Gunnar Englund

http://www.gke.org

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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...

 

[itsmoked]

Can you filter a VFD's output?

Keith Cress
Flamin Systems, Inc.-

http://www.flaminsystems.com

 

[rbulsara]

So what is that requires such nice clean sinewave? If it is so important, just buy a sychronous machine, why mess with clap-trap arrangement?