Loading an induction motor
Loading an induction motor
(OP)
I want to test an induction motor. I want to load it with a dc motor works as a generator. The motor is 2.2kW/1430rpm. How should i choose the dc motor? At same speed and power? Or are there any other choices available which is practical to use as a load?





RE: Loading an induction motor
Your limiting parameter will probably be the torque that the DC motor can "absorbe".
Gunnar Englund
www.gke.org
RE: Loading an induction motor
RE: Loading an induction motor
If you are looking for very short load cycles, you could also use another induction motor with DC injected into its stator, or for longer term loading, use and induction motor with a regenerative drive (preferably a drive with torque control).
Best regards,
Mark Empson
http://www.lmphotonics.com
RE: Loading an induction motor
Of course caution should be taken to operate the motors and drives so that you do not overstress the drive electronics or the motor windings. You should also find out any instabilities in the system. e.g resonance points etc. I recommend that you model and simulate this setup first before you actually try it especially if you are dealing with high power. You might need to include a stablizing network [resistor loads] basically to move the poles or zeors.