Leroy-Somer R230 Automatic Voltage Regulator AVR

Description:

The R230 Automatic Voltage Regulator (AVR) is used in generator systems to maintain stable alternator output voltage by controlling the exciter field current. Commonly installed in brushless alternators and generator sets to ensure consistent voltage regulation under varying load conditions. Maintenance teams and generator technicians use the R230 AVR for generator repairs, preventive maintenance, and replacement of failed voltage regulators to maintain reliable power generation.

Applications:

The R230 Automatic Voltage Regulator is widely used in diesel and gas generator systems requiring automatic voltage regulation. It is commonly found in standby generators, industrial power systems, commercial backup generators, and mobile power units where maintaining stable output voltage is critical for protecting connected equipment and ensuring reliable operation. The R230 is compatible with many brushless alternators using shunt excitation systems.

Technical Specifications:

• Manufacturer: Leroy Somer / Compatible Aftermarket Manufacturers
• Part Number: R230
• Product Type: Automatic Voltage Regulator (AVR)
• Excitation Type: Shunt Excitation
• Voltage Regulation Accuracy: ±0.5% Typical
• Input Voltage: 85–139 VAC
• Frequency: 50/60 Hz
• Excitation Output Voltage: Up to 90 VDC
• Excitation Current: 6 A Continuous, 10 A for 10 Seconds
• Response Time: 500 ms for ±20% Voltage Variation
• Remote Voltage Adjustment: ±5% with External Potentiometer
• Underspeed Protection: Adjustable
• Fuse Protection: 8 A Slow-Blow
• Operating Temperature: -40°C to +70°C
• Mounting Type: Panel Mounted
• Compatible Equipment: Brushless Alternators and Generator Sets
• Application: Voltage Regulation for Diesel and Gas Generators
• Features: Fast Response, Stable Voltage Control, Overexcitation Protection
• Status: Active Replacement Component Available Through OEM and Aftermarket Suppliers

Common Replacements:

• Leroy Somer R230
• Leroy Somer R250
• Leroy Somer AEM110RE014