I see you've already gotten a really quick answer to your question so there's nothing I can add there.
I reckon the industrial side will be quite different to what you've been doing. I've not been inivolved in that side of the job either; I do mostly residential with just a little very light commercial from time to time. That being the case, even where 3ph supplies are involved it's mostly single-phase loads, so it's so easy to forget those forumlas if you're not using them regularly.
Re: 3 phase kVA to amps per phase query#137477 07/09/0304:24 PM07/09/0304:24 PM
Appy, You've got that right!. When I last went to do a Refresher Lines Course at the Power Board, we were ALL handed an exam paper, made up by one of the Inspectors, in things like 3P theory, Neutral Currents in Star systems, etc. I had an OK time with it all, but some of the old Lineys, really kicked up a stink about it and they also failed miserably. They thought that they were just there to wear some gloves and do a few Pole Top Rescues. Was good to give the Grey matter a good work out though! [Steve, sorry about the threadjack!]
[This message has been edited by Trumpy (edited 07-10-2003).]
Re: 3 phase kVA to amps per phase query#137481 07/10/0305:24 AM07/10/0305:24 AM
Remember, it is usual to mark plant such as generators and transformers in kva and plant which "consumes" energy in kw. Thus a piece of piece of equipment requiring 30 kw at a power factor of 0.5 would need to be fed from a source that could deal with the current associated with 60kva.