From: "Stephen A. Lawrence" <[EMAIL PROTECTED]>
http://www.edf.fr/download.php4?coe_i_id=54806
It turns out that the French system is variable between 49-51
Hz and that the higher number would be expected when the plant
is running at thremal maximum... in l'été, shall we say...
Je ne comprend pas!
How can the system be _variable_? I mean, don't all stations
have to agree on a frequency?
Oui, exactment ...but that does not mean that when the temperatue
on a July day is pushing 38 that the single operator (EDF) will
not tell every plant to max out at 51 Hz, no?
Again, that is probably only feasible when you have only one
operator (is that right Terry?) - and EDF wants all its turbines
spinning at the maximimum permissible rate because of the demand -
and this jacks up the frequency slightly....
... or this is my guess
See the graphic on page 8 of the previous cite - looks like
anything between 48 and 52 in "normal"....
