"smitha4u" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed) oups.com...
>
> >
> > What are you trying to do?
> >
> > I have found that testing can be done with out removing the motor if you
> > have the right equipment. Having the spare 20 kw drive around is just
not an
> > opinoin where I work.
>
> I need to write a test plan/ procedure how in vaious methods we can
> bench test a 20Kw motor rated with 260-350 volts. we have motor in our
> lab so we need to test the performance of that. do you have any
> suggesstions for that
> thanks
> regards
Your going to need something substantial to bolt it down. Torque on a 25 hp
motor can surprise ya. Next your going to need a load. I suggest a
generator and resistive heaters in stages that can be switched on and off at
will. This load should be go beyond the service factor of the motor. The lab
should be able to be cooled and heated along with the humidity levels so
that you can actually see real life applications. Motors are installed in
some pretty dirty, ugly hot and humid places. All that has to be taken into
consideration.
Your going to need some calibrated test equipment. Volts, amps, rpm,
megger, possibly a hi pot. I have used a hi pot on low voltage motors
because that is the method that the engineer asked for, usually you do not.
Your going to need a calibrated power supply so you can do high and low
voltage.
Sure hope management has some deep pockets. This course is not going to be
cheap.
http://www.avotraining.com/training/index.asp
http://www.reliabilityweb.com/fa/motor_testing.htm
http://www.magtrol.com/motortesting/
Similar Threads
Linear Mode
