Generator Automatic Voltage Regulator – ADVR-250
Analog／Digital，Single-phase detection，Excitation Current 3.5 Amps. For use in brushless, self-excited (shunt) generators Compatible with Leroy Somer* R250/R230, AVR
*Notice：Technical terms, brand names and model numbers used here are only for reference, these are not original manufacturer products; however are compatible with these products.
Sensing Input ( 0V、110V ) Avg. reading
- Voltage 85 140 Vac single phase, 2-wire
- Frequency 50/60 Hz (DIP switch setting)
Excitation Output ( E+、E- )
- 120V single-phase Continuous 63 Vdc 3.5A
- Max. 110 Vdc 5A 10Sec
- Resistance Min.18Ω 、 Max.100Ω
- Fuse Spec. 5 x 20mm 8A (slow blow)
External Voltage Adjustment( 1KΩ )
- Max.+/- 14% @ 1 KΩ 1 watt potentiometer
Build Up Voltage
- Residual voltage at AVR terminal > 5 VAC, 25Hz
Soft start ramp time
- 3 secs +/- 10%
Voltage Regulation
- Less than +/- 0.5% (with 4% engine governing)
Response Time
- Less than 20 milliseconds
EMI Suppression
- Internal electromagnetic interference filtering
Static Power Dissipation
- Max. 8 watts
Under Frequency Protection (Dip switch setting)
- 50 Hz system knee point at 48 Hz
- 60 Hz system knee point at 58 Hz
Over Excitation Protection
- Excitation Current 5 A +/- 10 %
Voltage Thermal Drift
- -40 to +70 °C，less than 3%
Under Frequency Knee Point Thermal Drift
- -40 to +70 ˚C，less than +/- 0.1 Hz
Environment
- Operation Temperature -40 to +70 ˚C
- Storage Temperature -40 to +85 ˚C
- Relative Humidity < 95%
- Vibration 5.5Gs @ 60Hz
Dimensions
- 140.0 (L) x 81.0 (W) x 46.0 (H) mm
- 5.51 (L) x 3.19 (W) x 1.81 (H) inch
