... MX321,MX341, R448,R449,R230,YH-8A,YH-12A,etc. AVR for generator SX440 is a half-wave phase-controlled thyristor type Automatic ... note 2) Typical system responseAVR response20 msFiled current to 90%80 msMachine volts to 97%300msExternal voltage adjustment+/- 10% with 1 k ... frequency protectionSet point95% Hz(see note 4)slope170% down to 30 HzUnit power dissipation12 watts maximumBuild up voltage4 volts