R230 Automatic Voltage Regulator (AVR) compatible with Leroy Somer R250
With two-line sensing, ADVR-250 is a hybrid analog-digital AVR for self-excited (shunt) generators. It’s compatible with Leroy Somer* R250 and can also replace R230. The innovative heat sink design significantly improves the heat radiation efficiency.
FEATURES:
Compact size, robust and high reliability
Innovative heat sink significantly increases cooling efficiency
Load Acceptance Module (LAM) protection
Soft start voltage ramping
Over excitation protection
Digital low frequency protection circuit, prevents thermal drift
EMI suppression
Built-in high capacity fuse
Sensing & Power Input(Average Reading):
Voltage:85 to 140 Vac 1 phase 2 wire
- Frequency:50/60 Hz (Potentiometer setting)
- Excitation Output:
- 63 Vdc @ 120 Vac single phase
- continuous 5A Max. 110 Vdc 5A for 10 seconds
- Excitation Resistance:Min. 18 ohms Max. 100 ohms
- Fuse Spec:Slow blow 5 x 20 mm 8A
- External Volts Adjustment :+/-14% with 1 kΩ 1 watt trimmer
Build Up Voltage:Residual volts at power input terminal > 5 Vac 25 Hz
Soft Start Ramp Time:3 seconds +/-10%
Volts Regulation:< +/-0.5% (with 4% engine governing)
Response Time:< 20 milliseconds
Static Power Dissipation:Max. 4 watts
EMI Suppression Internal electromagnetic interference filtering
- Under Frequency Protection(Factory Setting):
- 50 Hz system presets knee point at 48 Hz
- 60 Hz system presets knee point at 58 Hz
Over Excitation Current Limiting:Excitation Current 5A +/-10%
Voltage Thermal Drift:< 3% at -40 to +70 °C
Under Frequency Knee Point Thermal Drift:< +/-0.1 Hz at -40 to +70 °C
Environment:
- Operating Temperature:-40 to +70 °C
- Storage Temperature:-40 to +85 °C
- Relative Humidity:Max. 95%
- Vibration:5.5Gs @ 60 Hz
Dimension:
- 140.0 (L) x 81.0 (W) x 46.0 (H) mm
- 5.51 (L) x 3.19 (W) x 1.81 (H) inch
Weight 300 g +/-2% 0.66 lb +/-2%
