2006-12-07 03:33:20 · 3 answers · asked by senthil v 1 in Science & Mathematics ➔ Engineering
Voltages are usually within ±20% or so, but frequency and phase angle from each generator have to be controlled *much* more closely (typically within .01%) because, if they aren't, you'll have generators tied together on the power distribution grid that are constantly out of phase and wasting huge amounts of energy.
Doug
2006-12-07 03:43:17 · answer #1 · answered by doug_donaghue 7 · 0⤊ 0⤋
Frequency changes are a big problem to power generators. A decrease to 49.9 raises issues. Some large users get paid to shed load in the event the frequency drops to this value so restoring it back to 50.
Voltages can be more tolerant and depend on the application. Installation regulations such as 16th edition give allowable volt drops in an installation.
2006-12-07 04:41:58 · answer #2 · answered by Poor one 6 · 0⤊ 0⤋
I don't know if it is between 49.8Hz and 50.2Hz or what in Europe.
Or maybe even better and sine wave accurate shape? Just don't know.
2006-12-07 03:38:40 · answer #3 · answered by winter_new_hampshire 4 · 0⤊ 0⤋