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Running A 2.2kw Motor With Two 1.5kw Inverters


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#1 AB2005

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Posted 03 January 2009 - 05:19 AM

Dear friends,

I am working for a project at my corrugator machine where I want to run an AC motor 2.2kw, 380V, 4poles after connected with two 1.5kw inverters. The parameters and connections of inverters would be same. As this is just an experiment, I can not ask to management for a 3hp inverter for this motor. I have these inverters in my stock. When this experiment would be succeeded, then I will purchase a 2.2kw inverter.
Please assist me if it is possible or not.
"Don't assume any thing, always check/ask and clear yourself".

#2 marke

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Posted 03 January 2009 - 05:35 AM

Hello AB2005

If you want to run to VFDs in parallel, then the answer is a very loud NO. (The bang may even be louder!!)
Do not even try as it is impossible to put the smoke back again!!

If you have other ideas on how you intend to do this, please describe them.

You can run a 2.2KW motor on a 1.5KW inverter, you will be restricted in the maximum torque output, but that may be enough to prove the point.

Best regards,
Mark.

#3 AB2005

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Posted 03 January 2009 - 09:21 AM

QUOTE (marke @ Jan 3 2009, 10:35 AM) <{POST_SNAPBACK}>
Hello AB2005

If you want to run to VFDs in parallel, then the answer is a very loud NO. (The bang may even be louder!!)
Do not even try as it is impossible to put the smoke back again!!

Yes Mark, I want to run two VFDs in parallel but after reading your comments, I can not do such.
"Don't assume any thing, always check/ask and clear yourself".




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