Automatic Voltage Regulator AVR EA42-7 for Kutai

Sensing Input

 Voltage 220~252VAC ¡À10% 1 phase 2 wire
 Frequency 50/60 Hz selectable

Power Input

Voltage 220~260 VAC ¡À10% 1 phase 2 wire
 Frequency 50/60 Hz

Output

Voltage Max. 42 Vdc
Current Continuous 7A Intermittent 15A for 10 sec. Resistance Min. 6 ohm , Max. 105 ohm

Volts Regulation

< ¡À1% (with 4% engine governing)

Build Up Voltage

Residual volts at AVR terminal > 5 VAC

VoltageAdjustable Range

180~277VAC

External Volts Adjustment

 ¡À10% with 1K ohm 1 watt trimmer

Unit Power Dissipation

 Max. 20 watts

EMI Suppression

 Internal electromagnetic interference filtering

Thermal Drift

 0.05% per¡ãC change in AVR ambient

Under Frequency Protection
(Factory Setting)

60Hz system presets knee point at 55Hz
50Hz system presets knee point at 45Hz

Over Excitation Shutdown

Field volts shut down after a time delay, If exciter field volts exceed 52¡À2VDC

Quadrature Droop

Max. Sensitivity 1VAC 2%
Max. Input 5 VAC @ 5 ohm Burden

Environment

Operation Temperature -40~60¡ãC
Storage Temperature -40~85¡ãC
Relative Humidity Max. 95%
Vibration 1.5G @ 5~30Hz / 5.0G @ 30~500Hz

AVR Controls Functions

VOLT : Voltage Adjustment
STAB : Stability Adjustment
U/F : To Set the U/F Knee Point (*U/F : Under Frequency Protection)

Shock

Withstands up to 20 G in each X, Y, Z axes

Dimensions

140.0 x 125.0 x 79.4 mm