Ok, I'll try to recall as much as possible about the system used in Brazil. It is a 127/220 V 3ph system, that's the only thing I know for sure. House supply is mostly 3 ph. http://www.interpower.com/guide.htm indicates that Voltages from 110 to 220V are used, @60Hz. Both Euro plugs and grounded/ungrounded NEMA plugs used. Just my 2 cents.
It's often very hard to track down accurate information about electrical arrangements in many countries.
3-phase distribution in Brazil apparently uses both 127/220 and 220/380V systems. Whether there is a conversion program I have no idea, although some sources indicate that the 127 is available only in a few areas now, so it could well be the case.
Several other countries that used both 127/220 and 220/380 seem to have gradually converted everything to the higher voltages, e.g. I believe that all of the old 127/220 networks in France have now gone.