General(Automatic Voltage Regulator for Generator SX440 series)
Automatic Voltage Regulator for Generator SX440 series is a half-wave phase-controlled thyristor type Automatic Voltage Regulator(AVR) and forms part of the excitation system for a brushless alternator, such as Stamford or Stamford technical alternator.

Technicial specification(Automatic Voltage Regulator for Generator SX440 series):

Input
        Voltage       190~260VAC
        Frequency   50~60Hz
Output
        Voltage       Max 90VDC at 207VAC input
        Current        Continuous 4ADC
                           Intermittent 6A for 10 secs
        Resistance   15 ohms minimum