Free Shipping Automatic Voltage Regulator compatible with Leroy Somer R250

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%