Generator power

Lou Zehnder

Lou Zehnder

New member
How much power does it take to run and start a 115 burner?
How much power does it take to run and start a pump out in a reclaim drum (sirroco)?

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An AC motor uses 3 times the running amps to get started.
A burner draws 5 amps, and needs 15 amps to get started. That's 1800 watts

A pump out motor draws 8 amps running and 24 to start. That's 2880 watts.

If you have a burner running, and are starting a pump motor, you need a capacity of 5 amps plus 24 amps. That's 3500 watts.
 
The women in my life remind me daily how completely wrong I am about everything, but I believe that most blower motors and the Daton 4HU74 submersible are PSC motors.
One of the benefits of PSC motors, or permanent split capacitor motors is that they require comparatively less power at start up .
If Jerry is no longer using the Daton 4HU74, the above information maybe incorrect.
 
I have run my large largo burner + one of Jerry's pump outs at the same time on my Yamaha 2000 watt inverter generator. Never started the two at the same time, usually had the burner running first and had the pump working when needed. The generator did have to work when the pump out started, but it never seemed to work it close to kicking the breaker.

I wouldn't expect the same results from a home depot genrac or something similar, but you could try.
 
Russ spelled it out.
otherwise.. always upsize on electrical, or you are just testing your own ability to overcome the downtime when "it happens to you".
..when you go with a cheaper brand anything, you are subjecting to the same test of composure.
Those inver-style generatos kick butt for starting-power !! love'em !!

the new (more powerful) Liberty pumps draw 7.3 amps top run, 1800watts to start.
..but request the low-amp version, and we're down to 5 amps running, 1400watts to start.
call for more info.
 
The liberty 450-Series Submersible Sump Pumps are also permanent split capacitor Motors



http://www.leeson.com/TechnicalInformation/sphase.html

A permanent split capacitor (PSC) motor, has neither a starting switch, nor a capacitor strictly for starting. Instead, it has a run-type capacitor permanently connected in series with the start winding. This makes the start winding an auxiliary winding once the motor reaches running speed. Because the run capacitor must be designed for continuous use, it cannot provide the starting boost of a starting capacitor. Typical starting torques of PSC motors are low, from 30 to 150% of rated load, so these motors are not for hard-to-start applications. However, unlike split-phase motors, PSC motors have low starting currents, usually less than 200% of rated load current, making them excellent for applications with high cycle rates. Breakdown torque varies depending on the design type and application, though it is typically somewhat lower than with a cap start motors.
 
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