2013/10/12 Martin Koppenhoefer <dieterdre...@gmail.com> > > 2013/10/12 Ole Nielsen / osm <on-...@xs4all.nl> > >> I propose to change the meaning of "substation=distribution" to be used >> only on substations at the last level of voltage transforming, thus the >> small street-level transformer kiosks etc supplied with medium voltage >> (typically 10-30 kV) and delivering low voltage power to households and >> small businesses. >> > definitely +1
> IMHO the IEC are right with defining everything below 100kV as > distribution, I wouldn't use this given term with a different meaning. > I don't agree. Imagine you find several 90 kV and 63 kV lines in such a substation connected with busbars. Then, the operator can use this stuff to make power transit between lines of a given power level and use transformers to transit between both 90 kV and 63 kV. That's transmission and not distribution obviously and it's below 100 kV. Furthermore, we can't qualify of "distribution" voltage levels which accept industrial client feeding : CERN is connected to French 400 kV (and I hope everyone will agree 400 kV isn't distribution). As far as i know, in France : 400 kV / 225 kV : national transport (RTE) 150 kV, 90 kV, 63 kV : regional transport (RTE) 20 kV, 400 V : local distribution (ERDF) Cheers, *François Lacombe* francois dot lacombe At telecom-bretagne dot eu http://www.infos-reseaux.com
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