pokerplayer
Member
I Need The The Proper Way To Figure A Load Calculation For A Gernerator To Submit With My Permit Application.
generator load calculation
- Thread starter pokerplayer
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cadpoint
Senior Member
- Location
- Durham, NC
- Occupation
- Electrician - but not by NC Law.
It might be a shadow answer but Gen-Rac has a slide chart, thingie...
OK the Brown Box.
I also like the Square D one (but thats off thread)
OK the Brown Box.
I also like the Square D one (but thats off thread)
DW
Thats close but you have to add extra capacity to start the A/C unit if it is on the generator. Try this location for a caculator to get the right size.
http://www.kohlerpower.com/resident...nNumber=13561&nodeNumber=1&contentNumber=103#
Thats close but you have to add extra capacity to start the A/C unit if it is on the generator. Try this location for a caculator to get the right size.
http://www.kohlerpower.com/resident...nNumber=13561&nodeNumber=1&contentNumber=103#
Thanks but
Thanks but
That calculator is no good, unless you like the black box approach. It teaches nothing.
My attachmment is an example by the book. I added 25% to largest motor just as the protocol says. Sorry but I can't do a perfect load calc unless I know what the gentleman wants to run. I don't know if its back-up power he wants or just minimal emergency. I was trying to show him the fundamentals. I stand behind my post. Yours? Would you be able to submit that to the building department? I would like to see a copy of the way you would calc his loads? (if you knew what they were) I'm not saying it's a finished product but for a pro, it's the place to start. No hard feelings.
DW
Thanks but
That calculator is no good, unless you like the black box approach. It teaches nothing.
My attachmment is an example by the book. I added 25% to largest motor just as the protocol says. Sorry but I can't do a perfect load calc unless I know what the gentleman wants to run. I don't know if its back-up power he wants or just minimal emergency. I was trying to show him the fundamentals. I stand behind my post. Yours? Would you be able to submit that to the building department? I would like to see a copy of the way you would calc his loads? (if you knew what they were) I'm not saying it's a finished product but for a pro, it's the place to start. No hard feelings.
DW
Last edited:
cadpoint
Senior Member
- Location
- Durham, NC
- Occupation
- Electrician - but not by NC Law.
It's always tough sitting here pondering what they are trying to do there!
I meant to say "shallow" not shadow. I do agree with you "DW", that all appreciate loads need to be met, as well as AHJ or other authorities, rules.
A tool is just a tool and will remain that tool, its always the operator's fault for lack of knowledge about this tool that gets one in trouble.
I meant to say "shallow" not shadow. I do agree with you "DW", that all appreciate loads need to be met, as well as AHJ or other authorities, rules.
A tool is just a tool and will remain that tool, its always the operator's fault for lack of knowledge about this tool that gets one in trouble.
- Location
- Massachusetts
Can we assume that if an EC is doing the calculations this is a single family home or very small commercial?
Not everything needs to be complicated for small jobs it is pretty straight forward. :smile:
Use Article 220 and make the calcs, submit these for the permit and submit them to the genset supplier.
Not everything needs to be complicated for small jobs it is pretty straight forward. :smile:
Use Article 220 and make the calcs, submit these for the permit and submit them to the genset supplier.
tryinghard
Senior Member
- Location
- California
Use Article 220 and follow examples in Annex D, D2 works good for residential (dwelling) & D3 for non-dwelling.
They really are simple but you'll need the plan and specs, just use excel spreadsheet for the math. If your not comfortable with excel pencil, paper & calculator are great!
They really are simple but you'll need the plan and specs, just use excel spreadsheet for the math. If your not comfortable with excel pencil, paper & calculator are great!
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