Generator
- Thread starter mannyb
- Start date
- Location
- Illinois
- Occupation
- retired electrician
You have to look at the motors. There can be significantly large voltage and frequency dips when lager motors are started.
One rule of thumb I have read is that the KW of the generator shall be 2 to 2.5 times the HP of the largest motor plus the sums of the horsepower of all of the other motors that will run at the same time. (for this rule of thumb, you just assume that HP = KW)
One rule of thumb I have read is that the KW of the generator shall be 2 to 2.5 times the HP of the largest motor plus the sums of the horsepower of all of the other motors that will run at the same time. (for this rule of thumb, you just assume that HP = KW)
- Location
- Wisconsin
- Occupation
- PE (Retired) - Power Systems
Do you have large soft-starters? Some of the old ones didn't play well with generators that were not oversized.
qcroanoke
Sometimes I don't know if I'm the boxer or the bag
- Location
- Roanoke, VA.
- Occupation
- Sorta retired........
I'm just an electrician but there is no way I'd be sizing a generator for a municipality.
Their engineers would be telling me.
Their engineers would be telling me.
Unfortunately there are no Soft Starts at all.
I agree with you. But we have been pretty successful so far
- Location
- Bremerton, Washington
- Occupation
- Master Electrician
Is this a design build?
And can you ask the generator supplier to size the generator?
And can you ask the generator supplier to size the generator?