AVR-KRS440B, automatic voltage regulator(AVR)

Features

Be applicable for self excited alternator, brushless generator with the frequency of 50Hz or 60Hz;

Adopt Surface Mounting Technology(SMT);

With Parallel Operation Function;

Under Frequency Roll Off Protection;

With Under Frequency LED Indication;

Over Excitation Protection.

Technical parameters

Build Up Voltage                   4V ac @ AVR terminals 

Power Input

Voltage                                 100-264V ac

Frequency                             50-60Hz (nominal)

Sensing Input

Voltage                                 170-264V ac or 352-528V ac (Jumper Selectable)

Frequency                             50-60Hz  (Jumper Selectable) 

Output

Voltage                                  Max. 82V dc @ 200V ac input

Current                                  4A consecutive current output 
                                             Transient 7.5A for 10secs.
Excitation Resistance             Min.15 ohms (Min.10 ohms @ 175V Power Input)

Over Excitation Protection       65V dc (Default Value)

                                             Time Delay:   10secs.

Under Frequency Protection    92-94%Hz rated frequency(By factory)

(UFRO)

Adjustment                           ±1%(with 4% engine governing)

others provided as follows :

AVR-SX460  

AVR-SX440

AVR-MX321

AVR-MX341  

AVR-KRS440