motor cycle
motor cycle
(OP)
can a 60cycle motor use in a country where there they use 50cycle.what will be some of the problem.
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RE: motor cycle
"Venditori de oleum-vipera non vigere excordis populi"
RE: motor cycle
You should adjust the voltage so that the V/Hz ratio is kept constant.
RE: motor cycle
There are many posts that have addressed this, try using eng-tips search feature.
RE: motor cycle
Assuming we discuss an ordinary AC induction motor:
1) Yes, the motor will run at 5/6 speed.
Provided the supply voltage is also 5/6 of the nominal voltage for the motor, this is appropriate. (As correctly stated by Skogsgurra).
But:
2) A normal AC motor will put out as much torque as the driven machine requires, until it stalls.
This will in many applications be OK, but expect only 5/6 power output from the machine. The current uptake and heat generation will also remain what it was at 60Hz. It might run a little hotter, due to the reduced capacity of the fan.
3) There is no direct dependency between variation in reactive power uptake and variation in frequency. If you look at the equivalent diagram for the motor, the L (inductances) should remain constant, so the reactances should be proportional to the frequency.
This is all for now, as I'll try to keep it short.
RE: motor cycle
Did you really read and understand the quesetion and answers given by me and jraef?
The higher torque (mentioned by jraef) is a real problem since it will shorten life of (possibly break) couplings and gear during start. It is true that the load torque is dependent on load - but that is not even necessary to mention here.
And, yes, the reactive power consumption will increase if you go from 60 Hz to 50 Hz without adjusting the voltage. mehteh asks for things to watch for when changing from 60 to 50 Hz. And this is one of them. I think you should consider what happens when the reactance is decreased - which is what happens when you decrease frequency.