OVERVIEW
Overview
The LEROY SOMER R130 Automatic Voltage Regulator (AVR) is a precision-engineered voltage control solution designed specifically for industrial and commercial generator applications. This professional-grade AVR is manufactured in three distinct commercial series—R130A, R130B, and R130C—which are technically identical but differentiated for market segmentation purposes. The R130 is engineered to operate within compound excitation circuits, delivering exceptional voltage stability by shunting excess exciting current to maintain output voltage at rated values. With single-phase sensing as standard configuration, this regulator provides reliable voltage regulation for LEROY SOMER alternators across diverse operating conditions, from prime power installations to standby emergency systems.
Designed for demanding applications where consistent electrical output is critical, the R130 AVR ensures your generator system delivers clean, stable power to protect sensitive electronic equipment and industrial machinery. The regulator's advanced shunt control technology actively monitors generator output and makes real-time adjustments to the excitation system, compensating for load variations and maintaining voltage within tight tolerances. Whether you're operating a hospital backup system, data center generator, manufacturing facility, or construction site power source, the LEROY SOMER R130 AVR provides the dependable voltage regulation essential for mission-critical applications. This genuine OEM component is built to exacting standards with high-quality materials and components, ensuring long service life and minimal maintenance requirements in the field.
Key Specifications
| Specification | Value |
|---|---|
| Model Number | R130 (R130A, R130B, R130C series) |
| Sensing Type | Single Phase (1-phase sensing standard) |
| Excitation System | Compound circuit compatible |
| Regulation Method | Shunt control technology |
| Voltage Regulation Accuracy | ±0.5% to ±1.0% (typical) |
| Frequency Range | 50/60 Hz |
| Operating Temperature Range | -40°C to +70°C |
| Voltage Output Capability | Above rated voltage (compound circuit configuration) |
| Response Time | Fast transient response for load changes |
| Protection Features | Over-excitation protection, under-frequency protection |
| Mounting Type | Standard panel mount configuration |
| Weight (Approximate) | 0.8 kg (1.76 lbs) |
| Build Quality | Conformal coated PCB for harsh environments |
Compatible Alternator Models
The LEROY SOMER R130 AVR is specifically designed for compatibility with a wide range of LEROY SOMER alternator series. This voltage regulator is commonly specified for use with LEROY SOMER LSA alternator models including the LSA 40, LSA 42.1, LSA 42.2, LSA 42.3, LSA 43.2, LSA 44.2, LSA 44.3, LSA 46.1, LSA 46.2, LSA 46.3, LSA 47.2, and LSA 49.1 series alternators. The R130 is engineered to work seamlessly with both industrial and marine generator applications where LEROY SOMER alternators are installed. This AVR is suitable for generator sets manufactured by leading OEMs who integrate LEROY SOMER alternators into their power generation systems, including applications in construction equipment, telecommunications towers, healthcare facilities, commercial buildings, and industrial manufacturing plants. When selecting an AVR replacement, it is essential to verify compatibility with your specific alternator model number and configuration. The R130's compound circuit design makes it particularly well-suited for applications requiring voltage boost capability beyond standard rated output. If you need assistance determining whether the R130 is the correct AVR for your generator system, our technical support team can cross-reference your alternator serial number and provide expert guidance on compatibility and installation requirements.
Why Buy from General Power
When you purchase your LEROY SOMER R130 AVR from General Power, you're partnering with an authorized dealer committed to delivering genuine OEM parts with unmatched customer service. We stock authentic LEROY SOMER voltage regulators sourced directly from authorized distribution channels, ensuring you receive factory-quality components with full manufacturer backing. Our inventory management system enables same-day shipping on orders placed before our cutoff time, minimizing your generator downtime and getting your power system back online quickly. We understand that generator failures don't operate on business hours, which is why we provide comprehensive bilingual technical support (English and French) to assist with product selection, compatibility verification, and installation guidance.
Our experienced team of generator parts specialists understands the critical nature of power generation systems and the importance of reliable components. Whether you're a generator service technician, facility maintenance manager, or equipment operator, you can count on General Power for accurate product information, competitive pricing, and responsive customer service. We maintain deep inventory levels of popular AVR models including the complete R130 series, ensuring availability when you need it most. Need assistance or have questions about your order? Contact our team directly at 1-888-769-3758 and speak with knowledgeable representatives who can provide expert guidance on LEROY SOMER AVRs, compatibility issues, and technical specifications. When you choose General Power, you're choosing a partner dedicated to keeping your power systems running reliably.
Installation Overview
Installing the LEROY SOMER R130 AVR requires electrical knowledge and should be performed by qualified generator technicians. Here's a general overview of the installation process:
- Step 1: Safety Preparation and System Shutdown – Before beginning any AVR replacement, completely shut down the generator system and disconnect all power sources including battery connections. Allow the alternator to cool completely and discharge any residual voltage in the excitation system. Tag out the generator controls to prevent accidental startup during maintenance. Photograph or carefully document existing wire connections to the old AVR before removal to ensure correct reconnection.
- Step 2: Remove Existing AVR – Carefully disconnect all wiring harnesses from the existing voltage regulator, labeling each connection point as you proceed. Remove mounting hardware securing the AVR to its mounting bracket or panel location. Inspect all wiring terminals and connectors for signs of heat damage, corrosion, or wear that might indicate underlying electrical issues. Clean mounting surfaces and connection points as needed before installing the new unit.
- Step 3: Mount and Connect New R130 AVR – Secure the new LEROY SOMER R130 AVR to the mounting location using appropriate hardware, ensuring adequate ventilation around the unit for heat dissipation. Reconnect all wiring according to the wiring diagram provided with the AVR and your documentation from the removal process. Pay special attention to proper connection of sensing inputs, exciter field outputs, and power supply connections. Verify that all connections are tight and properly seated.
- Step 4: Testing and Calibration – After installation is complete, perform a thorough pre-start inspection of all connections. Reconnect the battery and prepare for initial startup. Start the generator and allow it to reach operating temperature while monitoring voltage output with calibrated test equipment. Verify that output voltage stabilizes at the correct rated value and responds appropriately to load changes. Adjust voltage trim potentiometers if necessary to achieve precise voltage setpoint. Monitor the system during initial operation to ensure stable regulation without hunting or oscillation.
Frequently Asked Questions
Q: What does the LEROY SOMER R130 AVR do in my generator system?
A: The R130 Automatic Voltage Regulator controls the excitation system of your generator's alternator to maintain stable output voltage regardless of load changes or engine speed variations. It continuously monitors generator output voltage and adjusts the exciter field current to keep voltage at the rated setpoint. The R130 uses shunt control technology specifically designed for compound circuit applications, allowing it to provide voltage higher than rated when needed while shunting excess exciting current to prevent over-voltage conditions.
Q: How do I know if my R130 AVR is failing and needs replacement?
A: Common symptoms of AVR failure include unstable voltage output that fluctuates significantly with load changes, inability to maintain rated voltage (either consistently high or low output), complete loss of generator output voltage, or erratic voltage regulation that causes lights to flicker or equipment to malfunction. In some cases, you may notice physical signs such as burn marks on the AVR circuit board, damaged components, or a burning smell. If you're experiencing voltage regulation issues, testing the AVR with proper diagnostic equipment can confirm whether replacement is necessary.
Q: Is this an OEM LEROY SOMER part or an aftermarket replacement?
A: General Power supplies genuine OEM LEROY SOMER R130 AVRs manufactured by LEROY SOMER to original equipment specifications. These are authentic factory parts, not aftermarket substitutes or generic replacements. Genuine OEM parts ensure proper fit, reliable performance, and compatibility with your LEROY SOMER alternator's electrical characteristics. Using authentic LEROY SOMER components helps maintain your generator system's warranty compliance and ensures long-term reliability.
Q: What warranty coverage is included with the R130 AVR?
A: The LEROY SOMER R130 AVR includes manufacturer warranty coverage against defects in materials and workmanship. Specific warranty terms and duration vary by region and application, so please contact our team at 1-888-769-3758 for detailed warranty information applicable to your purchase. We recommend retaining your purchase documentation and following proper installation procedures to maintain warranty eligibility. Our customer service team can assist with warranty claims and provide guidance on the warranty process if issues arise.
Q: Can I get technical support for installing or troubleshooting my R130 AVR?
A: Absolutely! General Power provides comprehensive technical support for all LEROY SOMER products we sell. Our bilingual support team (English and French) can assist with compatibility verification, installation guidance, wiring questions, and troubleshooting assistance. Call us at 1-888-769-3758 to speak with experienced generator parts specialists who understand LEROY SOMER systems. We can help you determine if the R130 is the correct AVR for your application, provide wiring diagrams, and offer guidance on proper installation and adjustment procedures.
Order Today
Don't let a failed voltage regulator keep your critical power system offline. Order your genuine LEROY SOMER R130 AVR from General Power today and benefit from our same-day shipping, competitive pricing, and expert support. Whether you're performing preventive maintenance, responding to an emergency failure, or stocking spare parts for your facility, we have the inventory and expertise to meet your needs. Our authentic OEM components ensure reliable performance and long service life for your LEROY SOMER alternator. Need assistance selecting the right part or have questions about compatibility? Our knowledgeable team is ready to help—call 1-888-769-3758 now to speak with a generator parts specialist. Order with confidence from General Power, your trusted source for genuine LEROY SOMER AVRs and generator components. Keep your power systems running strong with quality OEM parts and exceptional customer service.