Voltage Drop - Dip Caculator

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MyCleveland

Senior Member
Location
Cleveland, Ohio
I am posting a spreadsheet put together after getting feedback from multiple questions on site.

If downloading....MUST change file extension to " .xlsx " before opening.

Thanks for all the help. Hopefully I have the math correct.

Please let me know if it needs editing, or is useful.
 

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  • Post VDrop VDip.xls
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MyCleveland

Senior Member
Location
Cleveland, Ohio
you guys are killing me here...no interest at all.
Spreadsheet has most of Chap 9-Table 9, 430 motor fla, Lea tables built in.
If nothing else, Download and copy the tables into your spreadsheet if you don’t like it.
 

wsbeih

Member
Location
USA
Great effort.

I just came across the post.

I spot checked couple of formulas and found the following:
1- "Z ft / 1 set" needs attention. Reference G8 instead of G9 in the formula.
2- "Conduit & Wire VD : L-L": I believe the formula should be: =IF(AND(D5="Wire",G6=3), G10*O8*D15/1000*(SQRT(3)), "----").
dividing the Length/1000 also should be applicable to the VD: L-N

If I get a chance to review it all, I'll update and post it back here.
 

Julius Right

Senior Member
Occupation
Electrical Engineer Power Station Physical Design Retired
It is very interesting, indeed. I need a little time in order to check it.
 

MyCleveland

Senior Member
Location
Cleveland, Ohio
Thanks for running....definite error in PF angle reference.
Believe I have fixed...attaching Ver 2.

I made my R & X table values per foot, so division by 1000 should not be necessary.
 

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  • Ver2 Post VDrop VDip.xls
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Ingenieur

Senior Member
Location
Earth
you inspired me to cobble one together
not as detailed, but may help some

please check it yourself, and confirm the results, I make no guarantee
play with it, and ask questions if you like

mods, if you think this needs it's own thread, do what you like
 

MyCleveland

Senior Member
Location
Cleveland, Ohio
Ingenieur

Any feedback on Ver 2 ?
Your formulas from previous posts are in the V Dip portion.

On the general V drop you have a choice of Bus Duct or Wire calculation.
You inspired me on another previous post about Bus Duct V drop.

I used R-X-Z data on the Bus Duct from a Siemens catalog.
 
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