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Will 250-255v From Rpc Fry My 3p Motor?????

GT Mills

Mohawk Aero
Registered Member
Joined
Oct 31, 2016
Messages
26
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9
#1
My rotary phase converter measured 247-258V when I tested it today under no load. I have a brand new $750 mill motor that just arrived to replace the one that I fried when I first ran my new purchase, an Enco 100-1525 mill, last week. I don't want to cook this motor, so can anyone tell me if it is safe to run these voltages? I thought 220-230V was what it was supposed to be, so I am concerned.

The first motor had a low speed lead crossed up with a high speed wire, so I was pretty sure that's what burned out the original motor when I ran it on high after only a few minutes. But after testing the RPC, I have to ask.

Thanks
 

jim18655

Active User
H-M Supporter-Premium Member
Joined
Nov 23, 2013
Messages
512
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361
#2
I'm not a RPC expert as many are on here but no-load voltages are usually higher than loaded voltages. The motor should be OK +- 10% on the voltage.
 
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