-Voltage regulation ±0.5%
-Short circuit capability: 3 x Irated for 10 seconds (AREP or PMG excitation)
-Voltage sensing:
       95 to 140 volts (50/60 Hz) or
       170 to 260 volts (50/60 Hz) or
       340 to 520 volts (50/60 Hz)
-response time: 
       Normal (1 sec) for ±20% voltage variation or Rapid (0.3 sec) for ±20% voltage variation
-Remote voltage adjustment range of: ±5%