Comments on: Homemade 1.8kW Inverter-Generator

By: SSD99

SSD99 — Thu, 03 Jun 2010 04:30:35 +0000

I have a smaller …
I have a smaller un-finushed gen-set using an electric-start 3.5 B&S driving a Delco 140A Alternator, electrically identical to the one in this video. I shot a crude video of it with my camera-phone, but plan to re-shoot it with my digi-cam. I seriously doubt the 3.5′er could handle the 140A at full-load. Doing the math and taking into account the inefficiencies of the standard Lundell alternator (~60-70%) for a maximum output of 1960W (14V x 140A), I would need 4kW, or over 6hp.

By: SSD99

SSD99 — Thu, 03 Jun 2010 04:30:34 +0000

Just the stock OEM …
Just the stock OEM starter. I got lucky- it was the 12V version. There were several 6V versions, which would have made charging a bit difficult from a 12V source w/o over-charging.

By: UBERKron

UBERKron — Thu, 03 Jun 2010 04:30:34 +0000

what starter are …
what starter are you using? i built a 2 stroke version a few years ago using a dyna start.

By: rca50a

rca50a — Thu, 03 Jun 2010 04:30:34 +0000

woulden’t be easer …
woulden’t be easer to buy a honda?

By: MrJetjoe

MrJetjoe — Thu, 03 Jun 2010 04:30:33 +0000

try electric moter …
try electric moter to power the gen. no gas or polution ness.

By: UBERKron

UBERKron — Thu, 03 Jun 2010 04:30:33 +0000

cheers. i got a …
cheers. i got a similar engine but 5.5hp. good to know its six volt! that explains why it doesnt charge my battery. starts quick though.

By: SSD99

SSD99 — Thu, 03 Jun 2010 04:30:33 +0000

Nope. The whole …
Nope. The whole idea was to DIY it. Beside, even the best, biggest, most powerful Honda inverter-generator (7kW) can’t run in total silent-mode (engine off). Mine can.

By: syncmaster710n14

syncmaster710n14 — Thu, 03 Jun 2010 04:30:32 +0000

Cool.
I baught a …
Cool.
I baught a honda a couple of years back and Its bean good for back up (live in the countryside lots of power cuts) but it was no good to leave runing all night so what I did was got 20 car batteries riged them up to an AC converter and I can now run all my house for 2-3 days off them with no generator at all.

By: SSD99

SSD99 — Thu, 03 Jun 2010 04:30:32 +0000

And where will the …
And where will the electric “moter” get its power from?

By: syncmaster710n14

syncmaster710n14 — Thu, 03 Jun 2010 04:30:31 +0000

In siries (I live …
In siries (I live in the UK so 240V) and the inverter is a 10KW AC converter I got from a yard sale. Think it was originaly used as part of a home wind turbine kit, but runs my batteries just fine. Also to charge the batteries I have 10 24v truck battery charges so I can chage them all at once. It takes alot of juice though.