@Chris15 - I know very little about Vectors. Thank you again for taking the time to reply to my post. With that said I agree with Derek.
@derekleffew - Thats exactly what I was trying to figure out, the exact load per
phase to make sure that it was A.) Balanced and B.) more importantly not over drawing the 80% of each
phase.
I realized that instead of trying to calculate the rig per Breakout I need to look at it as a whole. I was getting stumped when trying to calculate 5 lights on a 6
circuit breakout. Using a
power calculated app I couldn't figure out how it was getting the final amps per
leg. What I should be looking at is how many fixtures of the same type are on each
phase for the entire lighting rig. As long as I evenly distribute all of the
fixture types across the three different phases it will be easy to calculate the total amps per
phase.
Just to make sure I understand, if I wanted to quickly calculate a rig that has 24 x VL3000 Spot and 35 x
Mac 2k Spot I would do the following to calculate the total amps per
leg. Please correct me if I am wrong in my calculations.
1. Take 24 & 35 and Divide them both by 3 which will give me 8 and 11.6. Would it be better to just round this number up? Doing so would give me an even load across all 3 phases.
2. Take 8 x VL3000 and 12 x
Mac 2K per
phase and multiply those two numbers by the Amps per
fixture. VL3000 = 11A ,
Mac 2k = 10.3A. This gives me VL3000 at 88A per
phase and
Mac 2k 123.6 per
phase.
3. Add the two
fixture totals together to get 211.6A per
phase.
4. Multiply the result by
1.732 (Square Root of 3) to give me the total amps per
phase.
5. So the total amps would be 367A 120/208v 3
Phase. I would need to order a 1 x 400A & 1 x 60A 120/208v 3
Phase system keeping in mind that each service should only be used to its 80% capacity. The result would give me 320A on the 400A service and 46 amps on the 60A service.
If one did not multiply the total amps per
leg by
1.732 then they would think they could fit the entire rig on single 400A
system, or if they didn't take into account for the 20% buffer they would think it would fit on a single 400A service.
Once again please correct me if I am wrong in any of the above calculations. Is there any circumstances that I would not want to calculate a rig in the fashion I used above?
Thanks for your time and expertise,
Jon