Would a time nut in Europe in a typical single family home have access to all three phases ?
If so would there be any benefit to monitoring the frequency of each phase ? Mark Spencer [email protected] 604 762 4099 > On Apr 1, 2020, at 9:50 AM, Poul-Henning Kamp <[email protected]> wrote: > > -------- > In message <[email protected]>, jimlux > writes: > >> In EU, where 240V is the default line voltage, I wonder what the 3 phase >> distribution is? Is it 415 delta / 240 star > > 230V actually, and yes, it is universally 400 delta / 230 star. > > That's also why you only ever see an auto-tranformer if somebody > imported gear (typically computers) from USA. > > The most important difference from US is that co-poling of LV and > MV has almost never been practiced over here, so transients almost > only happen in thunder. > > For the same reason MV (typically 10kV) to LV transformers are > typically larger than the polemounted "buckets" used in USA. > > Her in DK MV/LV's are usually around 1MW, and they will supply > about a square kilometer of town or ten square kilometers of > rural landscape. > > An advantage of the large number of installations per trafo is that > load is even across the three phases, so you can run the transformer > closer to spec than any utility in USA would be happy with. > > Protective grounding differs, between countries and in countries, depending > on how hard it is to drive a good PE electrode (DK: Trivial, NO: Forget it) > > On the flip side, while we have agreed on the voltage, there are 13 different > national standards for the plugs and sockets on consumer-stuff... > > -- > Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 > [email protected] | TCP/IP since RFC 956 > FreeBSD committer | BSD since 4.3-tahoe > Never attribute to malice what can adequately be explained by incompetence. > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
