how do I "hook up" a 7500 watt portable generator

 

I've just ordered a 7500 continuous 13500 surge generac tri-fuel
generator.

It suddenly occurs to me that I need to balance the load accross the
outlets.
At surge (of 13500 watts), the unit will need to put out over 112 amps.

How do I split that load accross the circuits.

here are the outlets:
Model Number    04360
Receptacles    -
120 V Duplex NEMA#5-20R    2-20 Amp
120 V Twistlock NEMA#5-30R    1-30 Amp
120/240 V Twistlock NEMA#14-30R    1-30 Amp
120/240 V Straight Blade NEMA#14-50R    1-50 Amp
12 VDC    1-10 Amp
Circuit Breaker Protection (resetable) at each outlet


thanks
Phil

 

I have the Generac 7500 Exl, do you know how noisy it is!  Get a
transfer panel with watt meters and auxilary V meters and do it right.
I use a 6 circuit,  later I found I could have run my house with 2000w.

 

Where do you get that amperage. It is rated at 7500 watts, this gives you 31
amps per leg. You cannot count on the surge except for motor starting needs,
if you run it over its rated capacity or into its surge capacity it will not
last for long.

Never count on a generator's surge capacity, this is bragged about strictly
for advertising purposes and serves no other purpose except to cover
momentary surge draw when a motor kicks in.

 

If you really want it to last more than 500 hrs keep it around 3000w and
yes surge is momentary , for a second to start mainly motors

 


We currently run on a slightly smaller Honda ES6500 - which has a
rating of
6000w continuous and   6500 surge versus the
7500w continuous and 13500 surge of the Generac....
But the gasoline Honda costs about twice what the tri-fuel Gererac does
and we want to go to propane for lower emissions and  easier fuel
delivery and storage.

I'm trying to determine how to balance the load among the various
recepticles.
So far, it seems like our best bet is to split the load across the 50
amp 240 volt recpticle by using 50 amps for each of two 120 volt
cicuits.

Is there a better way to use the recepticles shown above?


Regarding the other responses:
"I have the Generac 7500 Exl, do you know how noisy it is!"
Your point is well taken - and though I have seen the ratings, I
haven't heard the Generac run. Fortunately for us, noise is not an
issue in this installation due to the isolated location.

-----
"Get a transfer panel with watt meters and auxilary V meters and do it
right. "
We are not on the  "grid".
Why do we need a transfer panel?
We have sub boxes that we feed from the Honda today - by splitting a
240 volt receptical.




-----
"Never count on a generator's surge capacity, this is bragged about
strictly
for advertising purposes and serves no other purpose except to cover
momentary surge draw when a motor kicks in. "

Yes, I agree - but motor start WILL happen  - and is an important part
of our load.
Why is this point relevant to chosing among the recepticles to use?
Are you saying that the 112 amp surge current won't last long enough to
 trip the breakers? If so, that may actually ease our situation.
Please explain - I don't see how this affects our choice of  solution.

----
"If you really want it to last more than 500 hrs keep it around 3000w
..."
All our load is 120 volt.
And is nominally about 4000watts.
We intend to run about 1000 hours per year and sell  the unit after 12
months  and replace it while it is still under warrantee. Roughly 7
hours per day- 3 days per week.
Does this seem reasonable?
Do you have experience with the life of the Generac 410cc engine on
propane?
Or is your concern failure of the generator head or electronics rather
than the engine?

Thanks all!
Phil