3 phase amps per leg
3 PHASE AMPERES - 80% POWER FACTOR* (Extended Table). Assuming delta connected, the line voltage is across each phase and the current is 56,000/240 = 230 A. How many amps per leg can you pull on a 50 amp 3 phase connector? phase 2 apparent power = 70 x 230 = 16,100 VA = 16.1 kVA      By writing an electrical note, you will be educating our users and at the same time promoting your expertise within the engineering community.

If you have some expert knowledge or experience, why not consider sharing this with our community. A three phase circuit consists of three alternating current conductors combined into a single power line. And now I would like to know how does the calculation works when a generator has to be used?

Please tell me about calculation of overload setting. I guess in a simple way, complex power is understanding the the real and reactive components are 90° out of phase. For a given number of wires, N, N-1 wattmeters are required to measure total quantities such as power. Try to look at the following post. From this post learn complete about how to calculate the load current of 3 phase motor. Reference // The Fundamentals of Three Phase Power Measurements – Application Note by Tektronix.

21,000 / 230 = 91 A. For three phase motor amps calculation, the below formula is used. = kW / (√3 x pf x VLL) - your formulae What normally happens in star is that because the voltage is less across each winding, you end up delivering less power then you would in delta (less power is less current). I work in the entertainment industry and definitely work with a star connected (wye) system where all legs measured to neutral is 120V and leg to leg is 208V.   P 1ph = P 3, Single phase apparent power S1ph (VA):      I know this probably is easy to understand, but I got myself to a completely confused state. Based in Atlanta, Georgia, W D Adkins has been writing professionally since 2008. Although only two wattmeters are required to measure total power in a three-wire system as shown earlier, it is sometimes convenient to use three wattmeters. Depending on the primary and secondary voltage rating of the “3-phase transformer” and it’s winding configuration, (i.e.