s gottwald

[steve gottwald]

What would the voltage drop be from supply(power pole) to breaker panel using 3/0 copper in a 450 foot run be.(200 amp main)

 

[roger]

What would the voltage drop be from supply(power pole) to breaker panel using 3/0 copper in a 450 foot run be.(200 amp main)

It would depend on the load.

Roger

 

[480sparky]

And the voltage.

 

[don_resqcapt19]

And the voltage.

You don't need the circuit voltage to find the voltage drop...you only need that to find the percentage of drop.

 

[charlie b]

It would also depend on whether you are talking about a single phase or three phase system.

 

[brian john]

You guys SOOOOOOOO complicate everything.

 

[480sparky]

You guys SOOOOOOOO complicate everything.

OK, here's a simple answer: Somewhere between 0.001 to 99.999%.

 

[charlie b]

We should not be so hard on a new member.

Steve, your question does not give us enough information to help you get an answer. But we generally want to see you make some attempt to come up with an answer on your own. Let us know what you have tried, and what difficulties you have encountered, and we will know how best to help you.

 

[brian john]

Steve:

A very easy to calculate VD


http://www.csgnetwork.com/voltagedropcalc.html

 

[steve gottwald]

steve gottwald

steve gottwald

480 sparky funny guy

 

[brian john]

Steve that makes two people on this forum that think that you and 480.

 

[electricalperson]

VD = 2KIL/CM

K = constant 12.9 copper 21.9 AL
I = amps
L = distance one way
CM = circular mils

3 phase

VD = 1.73KIL/CM

1.73 is the square root of 3

find wire size you need swap VD and CM

CM = 2kil/vd

you find VD by multiplying voltage by the % you want. 2.5 for example