Non-technical question about electric motor

[thinker]

I feel my question would sound a bit strange, but still hope for some feedback. We design and build high end dynamometer systems for R&D applications, and are recognized as one of the industry leaders worldwide. We typically specify and source various electric motors from established suppliers, and integrate these motors into dynamometers (including special frames,liquid cooling systems, torque and speed transducers etc., etc.). We put our company logo on the finished product surface, and stand behind its performance. The end user mostly does not know what brand of motors is installed. After one of our suppliers went out of business, we acquired all rights and documentation on manufacturing of certain motors.We have technical capacity to assemble these motors from pre-built stator and rotor assemblies.
Now my questions: since we are not motor manufacturer, do we have a right to place a nameplate on the motor? Do we need to have a testing facilities (with accreditation)for basic motor testing?
Can we build these special purpose motors without nameplate (nobody would see nameplates anyway)?

 

[ScottyUK]

Assuming that you are correct about having the manufacturing rights for the motor in question, I don't think you need a nameplate. It sounds like you aren't selling the motor as a product, so you can treat it as a component, just like any other component: how many of them do you apply nameplates to?

As for testing, well I personally would test it, but if you are confident that you can maintain the QA standards you require without testing then I doubt think you need to explicitly test the motor.

You probably will need to provide some sort of guarantee or warranty with the finished product though, and the finished product will need to meet whatever code requirements are in force where you sell the product.



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If we learn from our mistakes I'm getting a great education!

 

[Skogsgurra]

It sounds like you could do lots of testing using your finished dyno. Just add the transducers you may need (current, voltage, temperature etcetera) and use the existing transducers to keep track on speed, torque and any other variable you measure in the system.

I would love to have such a test bench to run motor tests in.

Gunnar Englund

http://www.gke.org

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