1、Volt Regulator: The frequency measuring circuit continuously monitors the output of the generator and protecting the excitation system by reducing the output voltage proportionally when the speed is lower than the pre output of the settable threshold. 2、Good Protection: In addition to regulating generator voltage, AVR circuit also includes low speed and inductive loss protection functions. 3、Better Control: The positive voltage build up from the residual level is ensured by AVR. High efficiency semiconductor AVR is used in the power circuit to connect with the main stator winding and exciter excitation winding to provide closed loop control of output voltage, and the load regulation is within 0%. 4、Generator Controller: Half wave phase controlled thyristor type automatic voltage regulator is a part of brushless generator excitation system. The excitation power comes directly from the generator terminals. 5、Easy to Install: Comes with a compact size and a light weight, the automatic voltage regulator is very convenient to install in minutes. 1 x Automatic Voltage Regulator1 x User Manual Item Type: Automatic Voltage RegulatorMaterial: ABSInput Voltage: Jumper optional, 95-132V AC or 190-264V AC. Frequency: 50-60 HzPhase: 1 PhaseOutput Voltage: Maximum 90V DC at 207V AC input. Current: Continuous current 4A DCIntermittent Current: 6 A, lasting for 10 seconds. Resistance: Minimum 15 ΩResponse: Typical system response. AVR Response: 20msExcitation Current to 90%: 80 ms. Machine Voltage to 97%: 300 msOperating Temperature: -40℃ to +70℃. Relative Humidity 0-70℃: 95%. Storage Temperature: - 55℃ to +80℃.