hardworkingstiff
Senior Member
- Location
- Wilmington, NC
The manufacturer says their 10KVA unit will run 10 HP worth of motor so long as the largest starting motor in not greater than 5 HP.
OK, so I ordered that unit for a drill press that has (8) 1 HP motors. The customer said he can control the starting of the motors so only 1 is started at a time.
I picked up the unit today and the output is rated 22-amps.
The motors are rated 3.6-3.8 amps (208-230V). That's close to 30-amps.
3.6*(208*1.732)=1296*8=10368 VA.
I called the manufacturer and they confirmed it will run it OK.
Checking the web I found a HP = 746 watts. So, let's say 8*746=5968 W.
5968/10368=57.5%
So does this mean that the motors have a 57.5% power factor?
Am I wrong to be suspicious about the unit being cable of handling these motors?
Thanks
OK, so I ordered that unit for a drill press that has (8) 1 HP motors. The customer said he can control the starting of the motors so only 1 is started at a time.
I picked up the unit today and the output is rated 22-amps.
The motors are rated 3.6-3.8 amps (208-230V). That's close to 30-amps.
3.6*(208*1.732)=1296*8=10368 VA.
I called the manufacturer and they confirmed it will run it OK.
Checking the web I found a HP = 746 watts. So, let's say 8*746=5968 W.
5968/10368=57.5%
So does this mean that the motors have a 57.5% power factor?
Am I wrong to be suspicious about the unit being cable of handling these motors?
Thanks