AVR R250
Voltage regulation Around ± 0.5 %
Supply range 85 to 139 V
Potentiometer for voltage setting 1000 /0.5W min. setting range ±5%
Operating at 50 Hz " Threshold at 48 Hz without LAM forimpactsbetween 30 and 40% of the rated
Load"
"Threshold at 48 Hz with LAM 13% forimpacts between 40 and 70% of the rated
Load."
Threshold at 48 Hz with LAM 25% for impacts > 70% of the rated load
Operating at 60 Hz " Threshold at 58 Hz without LAM forimpacts between 30 and 40% of the
Rated load"

Threshold at 58Hz with LAM 13% for impacts 40 and 70% of the rated load
Threshold at 58Hz with LAM 25% for impacts > 70% of the rated load
Specific operating Threshold at 57Hz without LAM for speed variations at a steady state > 2 Hz
Threshold at 65Hz without LAM for speed and tractelec / gearlec (U/F gradient)
" Special: the factory setting 48Hz 2U/F gradient; a special programme is
Possible on request."
Threshold at 47.5 Hz without LAM for speed variations at a steady state > 2 Hz