Speed Torque Curves
Speed Torque Curves
(OP)
Hi,
I am seeking the speed torque curves for two motors on separate centrifugal pump duty.
1) 250 Kw 1450 rpm 380v
2) 315 kW 1500 rpm 6000v
Any good sources I can down load from?
I am seeking the speed torque curves for two motors on separate centrifugal pump duty.
1) 250 Kw 1450 rpm 380v
2) 315 kW 1500 rpm 6000v
Any good sources I can down load from?





RE: Speed Torque Curves
RE: Speed Torque Curves
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RE: Speed Torque Curves
Unfortunately, JP and EP have given you the right advice. There are major differences between the speed torque curves for motors of the same size and speed. The Locked Rotor Torque can vary from less than 80% to higher than 240%. It is too dangerous to assume a generic curve! You must use the correct curve for the motor in question.
The torque speed curve is largely determined by the rotor design.
Best regards,
Mark Empson
http://www.lmphotonics.com
RE: Speed Torque Curves
The approach I shall take is to estimate the best and worst case and undertake a sensitivity analysis of the pumps start up.