In article .com,
wrote:
hi all..
iam stuck in a gruesome situation..have placed orders for some heavy
duty wood working machinery from US.Most of these involve 3ph,220v,60hz
motors but i need to operate them at 220v,3ph,50hz supply.
can anyone please advice me on what will happen to the production(
efficiency wise.) in this case.
eagerly waiting for ur help..
thnks a ton.
sam.


Assuming you specified motors that can run on 50 hz (It is not unusual
for motors to be rated for both) they will run at about 83% of the
of their 60 hz rated speed when running at 50hz. Whether that is a
problem or not would depend on the specific application. If the motors
are NOT rated for 50 hz operation, they will run hot, though perhaps
on a lightly loaded machine you could be OK.



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Larry Wasserman Baltimore, Maryland