3 phase 750ft to panel 200 amp

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There are many voltage drop calculators on line via google or at mike holt. You will find this out the first time you use one that you are missing some information.
What is 200 amp?
To others who would answer, please let the OP cme back with missing information.
 
What is the actual load that will be fed from the 200 amp feeder.? The actual load is often much less and voltage drop is based on the load.
 
As stated you need to know the maximum load for a full 200 amps you would need parallel 350 kcmil copper conductors according to Southwire.

Voltage Drop

Minimum Conductor Size

2.80%

350 kcmil


2 conductors per phase utilizing a 350 kcmil Copper conductor installed Direct Buried will limit the voltage drop to 2.80% or less when supplying 0200 amps for 750.0 feet on a 0240 volt 3 phase system.

Engineering information only

310

Amps Rated ampacity of selected conductor

0.038

Ohms Resistance (Ohms per 1000 feet)

0.04

Ohms Reactance (Ohms per 1000 feet)

0.9

Power Factor

7.199999999999999

Maximum allowable voltage drop at 3%

6.708

Actual voltage drop loss at 2.80% for the circuit
Click to expand...

Voltage Drop Calculator | Southwire

www.southwire.com www.southwire.com
 
So to answer your question, do a voltage drop calc based on the connected load. If its really 200 amps, that will be an expensive for the correct size feeder. If it really is 200 A then consider a step up to 480, and then step back down to 120/240.
 
tom baker said:
So to answer your question, do a voltage drop calc based on the connected load. If its really 200 amps, that will be an expensive for the correct size feeder. If it really is 200 A then consider a step up to 480, and then step back down to 120/240.
Click to expand...
Step up/step down may or may not cost less than larger conductors alone.

If 480 is already on premises, then best to run 480 for the long run and then step down at the load end.
 
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