AVK COSIMAT C2.2 Automatic Voltage Regulator - Premium AVR for Nonlinear Loads

The AVK COSIMAT C2.2 is an advanced compact automatic voltage regulator (AVR) specifically engineered to control synchronous alternators in demanding power generation applications. This sophisticated voltage regulation system stands out from its predecessor, the C2.1, by incorporating a true RMS (Root Mean Square) effective value measuring system that makes it exceptionally suitable for nonlinear alternator loads commonly found in modern electrical installations. Whether you're managing generator systems with variable frequency drives, UPS systems, LED lighting, or electronic equipment, the COSIMAT C2.2 delivers precise voltage regulation that ensures stable, clean power output under challenging load conditions.

As an authorized AVK dealer, General Power proudly offers genuine OEM AVK COSIMAT C2.2 voltage regulators backed by factory warranties and expert technical support. This advanced AVR provides two distinct methods of influencing alternator voltage while accounting for alternator frequency through its integrated U/F function and comprehensive under-speed protection features. The compact design allows for straightforward installation in generator control panels while delivering industrial-grade performance and reliability that AVK is renowned for worldwide.

Key Technical Specifications

Advanced Features & Technical Capabilities

• True RMS Measurement Technology: Unlike standard AVRs, the COSIMAT C2.2 utilizes effective value measurement that accurately responds to distorted waveforms created by nonlinear loads such as computers, variable speed drives, LED lighting systems, and modern electronic equipment
• Dual Voltage Control Methods: Provides two independent ways of influencing alternator output voltage, giving operators flexibility in optimizing generator performance for specific applications and load profiles
• Integrated U/F Function: The voltage-to-frequency ratio function automatically adjusts voltage output based on alternator frequency, ensuring proper excitation levels throughout the operating speed range
• Under-Speed Protection: Protects the alternator from over-excitation during startup and low-speed operation, extending generator lifespan and preventing component damage
• Frequency-Dependent Regulation: Automatically accounts for alternator frequency variations, maintaining consistent voltage output even during speed fluctuations
• Compact Installation Profile: Space-efficient design fits into tight control panel locations while maintaining full functionality and serviceability
• Enhanced Load Response: Superior transient response characteristics ensure voltage stability during sudden load changes and motor starting events
• Temperature-Compensated Operation: Maintains accurate regulation across wide ambient temperature ranges typical in generator enclosures
• Robust Construction: Built with industrial-grade components designed for continuous duty in harsh power generation environments

Compatible Generator and Alternator Models

The AVK COSIMAT C2.2 voltage regulator is designed as a direct replacement AVR for numerous AVK alternator families and is also compatible with select alternators from other manufacturers when properly configured. This genuine OEM regulator is commonly specified for:

• AVK DSG Series Synchronous Alternators
• AVK DIG Series Industrial Generators
• AVK DMG Series Marine Alternators
• AVK DSLG Series Low Voltage Alternators
• AVK DIH Series High-Output Generators
• AVK RSG Series Rotating Field Alternators
• Custom and OEM generator configurations requiring true RMS voltage regulation
• Retrofit applications replacing older C2.1 models where nonlinear load compatibility is required
• Industrial power systems with significant harmonic distortion from electronic loads
• Marine vessel auxiliary generators with variable load characteristics
• Rental fleet generators serving mixed commercial and industrial applications
• Data center and telecommunications backup power systems
• Manufacturing facilities with VFD-driven machinery

Note: Always verify compatibility with your specific alternator model number before ordering. General Power's technical team can assist with cross-referencing and compatibility confirmation for your application.

Installation Overview for the COSIMAT C2.2

Installing the AVK COSIMAT C2.2 automatic voltage regulator requires basic electrical knowledge and adherence to proper generator servicing procedures. General Power recommends installation by qualified generator technicians following these general guidelines:

Pre-Installation Preparation: Before beginning installation, ensure the generator is completely shut down with all power sources disconnected. Verify you have the correct replacement AVR by checking the existing unit's model number and alternator specifications. Photograph existing wiring connections for reference during reinstallation.

Mounting Procedure: The compact COSIMAT C2.2 typically mounts directly to the alternator or within the generator control panel using standard mounting provisions. Ensure adequate ventilation around the AVR for heat dissipation during operation. The unit should be mounted in an orientation that prevents moisture accumulation and allows access for future service.

Electrical Connections: Connect wiring harnesses according to AVK's wiring diagram specific to your alternator model. Key connections include excitation field output, sensing inputs for voltage monitoring, frequency sensing for U/F function operation, and auxiliary power where required. Use properly sized conductors and ensure all connections are tight and properly insulated.

Initial Setup & Calibration: After installation, the COSIMAT C2.2 may require voltage adjustment to match your alternator's rated output. Use a calibrated multimeter to verify output voltage under no-load conditions, then test with representative loads to confirm stable regulation. Adjust potentiometers per manufacturer specifications to achieve desired voltage setpoint.

Function Testing: Verify proper operation of all protective features including under-speed protection and U/F compensation. Test voltage regulation under varying load conditions, particularly with nonlinear loads to confirm the true RMS measurement system is functioning correctly. Monitor for stable voltage output without hunting or oscillation.

Complete installation instructions are provided with each genuine AVK COSIMAT C2.2 purchased from General Power. Our technical support team is available to assist with installation questions and troubleshooting.

Why Purchase Your AVK COSIMAT C2.2 from General Power

When you choose General Power as your source for the AVK COSIMAT C2.2 automatic voltage regulator, you're partnering with an industry-leading supplier committed to your success:

Authorized AVK Dealer: General Power is an authorized distributor of genuine AVK generator parts and voltage regulators. Every COSIMAT C2.2 we sell is an authentic OEM component sourced directly from AVK, ensuring you receive factory-quality parts with full manufacturer warranty coverage.

Guaranteed Genuine OEM Parts: We never sell aftermarket, counterfeit, or refurbished voltage regulators. Each AVR is factory-new and includes original packaging, documentation, and serial number verification for complete peace of mind.

Same-Day Shipping Available: With extensive inventory of popular generator parts including the COSIMAT C2.2, we offer same-day shipping on orders placed before our cutoff time. Minimize generator downtime with fast delivery directly to your location.

Expert Technical Support: Our team includes experienced generator technicians who understand AVK products and can provide application guidance, compatibility verification, and installation support. We're here to ensure you get the right part for your specific alternator.

Competitive Pricing: As a high-volume AVK parts dealer, General Power offers competitive pricing on the COSIMAT C2.2 and all generator components without compromising on quality or service.

Easy Returns & Warranty Support: In the unlikely event you receive an incorrect or defective part, our hassle-free return process and warranty administration ensure quick resolution to keep your generator operational.

Frequently Asked Questions About the AVK COSIMAT C2.2

Q: What is the main difference between the COSIMAT C2.2 and the C2.1 voltage regulator?

A: The primary difference is that the COSIMAT C2.2 features a true RMS (effective value) measuring system, while the C2.1 uses average value measurement. This makes the C2.2 significantly better suited for applications with nonlinear loads such as electronic equipment, computers, LED lighting, and variable frequency drives. The true RMS measurement allows the C2.2 to accurately sense and regulate voltage even when the waveform is distorted by harmonics from modern electronic loads. If your generator serves facilities with significant electronic loads, the C2.2 is the superior choice for stable voltage regulation.

Q: Can I use the COSIMAT C2.2 as a direct replacement for other AVK voltage regulators?

A: The COSIMAT C2.2 is designed for specific AVK alternator models and applications. While it may be compatible with alternators previously using other AVK AVRs, you should verify compatibility before ordering. The C2.2 is specifically recommended for applications where nonlinear loads are present. General Power's technical team can cross-reference your existing AVR part number and alternator model to confirm whether the COSIMAT C2.2 is the appropriate replacement for your application.

Q: How do I know if my generator has nonlinear loads that require the C2.2's true RMS measurement?

A: Nonlinear loads are extremely common in modern electrical systems. If your generator powers computers, servers, UPS systems, variable frequency drives, LED lighting, battery chargers, welding equipment, or most electronic devices, you have nonlinear loads. These loads draw current in non-sinusoidal patterns that create harmonic distortion. Standard AVRs using average value measurement can misread the distorted voltage waveform, leading to regulation errors. The COSIMAT C2.2's true RMS measurement accurately senses the actual voltage regardless of waveform distortion, providing superior regulation for these challenging applications.

Q: What does the U/F function do on the COSIMAT C2.2?

A: The U/F (voltage-to-frequency) function automatically adjusts the voltage regulation based on alternator frequency. Since alternator frequency is directly related to engine speed, this function ensures proper excitation throughout the operating range. At lower frequencies during startup or reduced speed operation, the U/F function prevents over-excitation that could damage the alternator. As frequency increases to rated speed, excitation is proportionally adjusted to maintain correct voltage output. This feature works in conjunction with the under-speed protection to safeguard your alternator during all operating conditions.

Q: Is technical support available if I have questions during installation of the COSIMAT C2.2?

A: Absolutely! General Power provides comprehensive technical support for all AVK products we sell, including the COSIMAT C2.2 voltage regulator. Our experienced technicians can assist with compatibility verification, wiring questions, adjustment procedures, and troubleshooting. We recommend having your alternator model number, generator serial number, and any existing AVR part numbers available when contacting support. We're committed to ensuring successful installation and operation of your new voltage regulator.

Order Your Genuine AVK COSIMAT C2.2 Today

Don't compromise your generator's performance with aftermarket alternatives or incorrect voltage regulators. The AVK COSIMAT C2.2 automatic voltage regulator delivers the precise voltage control your synchronous alternator requires, especially when powering modern electronic equipment and nonlinear loads. As an authorized AVK dealer, General Power guarantees you'll receive a genuine OEM COSIMAT C2.2 with full factory warranty support.

With our extensive inventory, same-day shipping options, and expert technical support, General Power makes it easy to get your generator back in service quickly. Whether you're replacing a failed voltage regulator, upgrading from an older model, or stocking critical spares for your generator fleet, we have the AVK parts you need at competitive prices.

Order now to take advantage of our same-day shipping and minimize your generator downtime. If you have questions about compatibility, need assistance with installation, or want to verify this is the correct AVR for your application, contact our knowledgeable team today. We're here to keep your power generation equipment running reliably with genuine OEM AVK components.