Gene, The phaseperfect install guide did mention that when you need balanced voltage to ground to use a delta wye transformer after their device. So I have to assume they are out there but so far my google only turns up descriptions of the beast.
John On 5/27/2012 4:09 PM, gene heskett wrote: > Now, here John, is another thought if my train of thought follows and this > thing is hooked up delta on the outside, but is 3 individual loads to > ground inside the kit, and which I can see objecting to the over voltages > the phase converter generates,you might be very pleased with how it works > IF you interpose a 3 phase transformer between your phase converter output > and the supply to this kit. Hook the input side up as a delta load, > ignoring the center of the wye this idler motor has AND the center of the > primary side wye (other than making sure, if it has individual bolts per > phase, that they are connected together). > > Then ground to the machines neutral and effectively to ground, the center > of the wye of this 3 phase 1/1 transformers secondary, and feed your kit > with the outside 3 corners of the wye. That should go a long ways to > restore the "to ground" voltage balances. The transformer will of course > need to be rated at about 125% of the kits actual load. And not having > researched it, I'd have no clue as to the ready availability of such a > beast. > > Doing a google search, I came across this: > > <http://www.elec-toolbox.com/usefulinfo/xfmr-3ph.htm> > > which might make it a bit clearer than my word pictures. > > Cheers, Gene. ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
