ADVR-073

Automatic Voltage Regulator (AVR)

Specifications

Sensing Input	Voltage 170 to 520 Vac 1 phase 2 wire DIP switch selectable | Frequency 50/60 Hz DIP switch selectable
Power Input	Voltage 100 to 300 Vac 1 phase 2 wire
Output	Voltage Continuous 63 Vdc Max. 90 Vdc @ 220 Vac input | Current Continuous 7A | Intermittent 15A for 10 seconds | Resistance Min. 9 ohms | Max. 100 ohms
Voltage Regulation	Less than +/-0.5% (with 4% engine governing)
Build Up Voltage	Residual voltage at power input terminal more than 5 Vac 25 Hz
Over Excitation Protection	78 +/-5 Vdc @ 220 Vac 5 seconds
External Voltage Adjustment	7% with 1K ohms 1 watt potentiometer
Static Power Dissipation	Max. 8 watts
Soft Start Ramp Time	3 seconds
EMI Suppression	Internal electromagnetic interference filtering
Voltage Thermal Drift	0.03% per °C change in AVR ambient
Under Frequency Protection (Factory Presets)	50 Hz system presets knee point at 45 Hz | 60 Hz system presets knee point at 55 Hz

AVR Control Functions

VOLT	Voltage adjustment
STAB	Stability adjustment
U/F	Setting under frequency protection knee point

Indication LED

O/E	Over excitation protection indicator
U/F	Under frequency protection indicator

Environment

Operating Temperature	-40 to +60 °C
Storage Temperature	-40 to +85 °C
Relative Humidity	Max. 95%
Vibration	3.0 Gs @ 100 to 2K Hz

Physical Specifications

Dimensions	150.0 (L) x 115.0 (W) x 51.0 (H) mm
Weight	440 g +/-2%