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Genset Conversion

A

Anonymous-0

Well-known Member
I have recently acquired a 100 kw 240/480 generator. I am needing to find out 2 things. will a 277/480 volt motor run off this 240/480 genset ? Also what would be the largest motor would this genset pull at say 80 % load .I am needing to convert a sawmill from a 4-71 detroit t0 electric , I understand that the genset will consume a lot more fuel ,however electric on the saw will be a more steady speed Thanks
 
As long as both the genset and motor are connected for 480 volts/3 phase, the genset will run a 277/480 motor just fine.

Keep in mind this however: A 100 kw genset is the equivalent to about 135 horsepower at the generator terminals. Now take into account motor efficiency (90% for a 3 phase NEMA design B motor), the best you can expect is about 122 HP before the genset becomes overloaded and everything slows down. OTOH a healthy 4-71 properly RPM matched to the saw arbor will deliver about 160 HP.

So it's unlikely you are gonna see as steady RPM at the saw with genset/motor combination as with the 4-71 setup you have now.
 
I agree with my friend Bob M. It appears your genset is configured DELTA while the Motor is Y, but regardless, 480 v 3 phase Y or Delta will power the 480 volt 3 phase motor.......

John T
 
Ok Thanks guys .looks like will be hunting a pto for a 6-71 and possibly scraping the generator end then.
 
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