Diesel generator - AC vs. DC?

doofusMarch 12, 2013

Our new generator has outputs for both 110V and 240V AC as well as 12V DC.

Is any of those "primary" or the preferred, while the others are converted from the first one?

In other words, suppose a hypothetical device could use both AC or DC -- what should I connect it to? Thanks!

Thank you for reporting this comment. Undo

Either AC is "primary". DC is converted.

The AC likes to be balanced. I.e. A 240V motor will pull the same amps from each 120V leg, good. Plug one 120V cord into the gen and load everything on it, bad. Spread the 120V loads evenly between all the receptacles, good.

Available DC is only 8.3 amps. That's only 100 watts.

This post was edited by glennsparky on Wed, Mar 13, 13 at 5:40

    Bookmark   March 13, 2013 at 4:59AM
Thank you for reporting this comment. Undo
Ron Natalie

The DC is very limited. They put it there primarily for ancillary purposes like charging the batteries to start the thing.

If you want to get the rated power out of that thing you're going to need to plug your loads into the L14-30R (round four pin thing) on the generator. The regular 110 outlets are both connected to the same leg and are limited to 20A.

    Bookmark   March 13, 2013 at 10:07AM
Thank you for reporting this comment. Undo

The DC is derived from the AC just like a car battery charger derives DC from the AC input. There is basically a half-wave or full-wave rectifier in there. Which means there is a lot of ripple on that DC. It's only good for charging batteries. But it is not a smart charger by any means.

    Bookmark   March 13, 2013 at 2:57PM
Thank you for reporting this comment. Undo

Hi, Before you decide on AC or DC you better check the voltage.

    Bookmark   March 13, 2013 at 7:53PM
Thank you for reporting this comment. Undo

doofus, other than charging a battery, what would you possibly use the DC for in a home???

    Bookmark   March 13, 2013 at 9:31PM
Thank you for reporting this comment. Undo

The regular 110 outlets are both connected to the same leg and are limited to 20A (total).

Thank you, ronnatalie, for this particular bit. But how do you know about this? Is this just how generators normally are, or do you have one like this? I could not find much information about the layout in the manual...

It would've certainly made more sense to me, if the two outlets were each attached to a separate "leg" âÂ" to allow better load-balancing with fewer wires...

Thanks again!

Here is a link that might be useful: User manual for Powerland's PDU6500E generator

    Bookmark   November 11, 2013 at 1:50PM
Sign Up to comment
More Discussions
Multiple Fluorescent Ballasts in one light fixture
Hello GardenWeb. I'm not new here, but couldn't log...
Help with 240V 50A location
I'm trying to do a challenging kitchen layout. I will...
Doorbell goes off by itself.
Can anyone tell me why this would happen? It's a wired...
Light boxes on/in 6X8 timber floor joists for log home
Just trying to figure how to wire a couple light fixtures/chandelier...
electrical outlet distance to radiator
how far from a radiator should a wall electrical outlet...
© 2015 Houzz Inc. Houzz® The new way to design your home™