I lived in Argentina (suburb of Buenos Aires) from 1965-1967, and many of the utilities were old and overtaxed, including the electric power distribution. The voltage would drop in the evening, and most people had step-up transformers with a knob and several taps to compensate.
The power on our street was 3-phase delta, and the power company did a cheap fix by converting to wye and running a light gauge neutral wire on the poles. They counted on the houses using random phases so there wouldn't be much current in the neutral wire, and by converting to wye they increased the voltage on the wires, decreasing the current and the losses in the wires. Houses still got 220 volts single phase, by switching from phase-phase to phase-neutral. -----Original Message----- From: Af [mailto:[email protected]] On Behalf Of Josh Reynolds Sent: Sunday, January 15, 2017 11:16 AM To: [email protected] Subject: Re: [AFMUG] OT In search of 400/201 volts Mmmmmm MX2010s... On Sun, Jan 15, 2017 at 6:58 AM, Paul Stewart <[email protected]> wrote: > Very interesting….. I’m far from a power expert - actually never been my > thing … > > But when we first ordered Juniper MX2010 we ordered them with WYE power as we > thought we could make it work in a datacenter environment - never got it > working because the ordered rail system was only 400V (if I got my info > straight) …. so seeing someone actually using something related to WYE and > working is awesome! ;) > > >> On Jan 14, 2017, at 2:09 PM, [email protected] wrote: >> >> It lives!!!!! >> >> Successful transgender surgery of a 30 kva transformer. >> >> Turned a delta-delta into a wye-wye. >> And she is even a pretty wye-wye. <photo.JPG> > >
