Recent content by Gadol

davidbeach, Data is not the problem, I get from my power monitoring board more then enough data. let's go to the basic: I get voltage and current for each phase: I1=47.8A I2=59.1A I3=69.7A V1=244.4V V2=247.3V V3=245.9V PF=~1 What is the Power for Delta connection? My board gives a power...

Hi, now I'm confused, Delta connection doesn't have N leg, so how come we still have the V(LN) we should only have V(LL)..? davidbeach, what is the correct answer? so given the current for each phase, which voltage should we used to calculate the power? and if the total power in the sum of...

David and all, thank you so much, now it is making sense. Happy Holidays, Gadol

Hi, the monitor gives me total power in Kw. Current per phase: 44.2, 48.3, 49.2 Amps pf=~1 Thanks, Gadol.

Yes I have used the correct formula. For each phase: Pph=(Aph*Vph(LN)*PF*3)/1000 Pph1=32.77kw Pph2=36.42kw Pph3=36.83kw the Power monitoring board gives P=38.6kw So avereging the phases is more like it, is it correct? Thanks, Gadol

Thank you so much, it is very helpful info. When I add the 3 calculated power for each phase I get unrealistic value of total power, but when I avgerage the 3 power values per phase it's matchs my device power rating? Do I do the right calculation by averaging the power for each phase? Thanks...

Bill, Alan thank you so much for replaying. The data that I get from my monitoring board are: A, V(LL), KVA,PF and KW with accumaltive Kwhr. the reason for my question is that my calculated power, the sum of (A*V(LL)*PF*3)/1000 per phase does not match the KW from my board. In addition can I...

Hello, I Monitor power of 3 Phase 480V (Delta connection), I get the power in Kw for each phase, how can calculate the total power? Thanks.