... Voltage Regulator 1,Designed for a brush/brushless AC generator. 2,Certificate of ISO9001:2008. Automatic voltage regulator ... SY-AVR-2058 1,Introduction:Model: 2058 series Introduction: SY-AVR-2058 generator automatic voltage regulators (AVR) are specifically ... control system, e.g. engine controller, water preheater, generator synchronizer, genset controller, power factor regulator, fuel solenoid, ...