DATAKOM AVR-40

Description

DATAKOM AVR-40 is a high-performance Automatic Voltage Regulator (AVR), specifically engineered to control the output voltage of generator alternators by adjusting the excitation current. It ensures consistent voltage levels even under fluctuating load conditions, providing stable power to connected systems.

Features:

Voltage Regulation:

• Maintains voltage regulation at ±1%, ensuring precise control over output voltage for optimal equipment performance.

High Excitation Capacity:

• Supports up to 40 A DC continuous excitation current, making it suitable for larger alternators or those requiring significant excitation power.

Built-in Protection:

• Overload Protection: Safeguards the AVR and alternator from damage due to excessive loads.
• Short Circuit Protection: Prevents faults in the system from damaging the AVR.
• Overtemperature Protection: Reduces output or shuts down the AVR during overheating.
• Sensing Loss Protection: Detects and protects against voltage sensing faults.

Capability:

• Provides a 2-second soft-start function, reducing the risk of sudden voltage spikes during startup.

Frequency:

• Compatible with both 50 Hz and 60 Hz systems, with under-frequency protection settings.
• Adjustable range of 42-50 Hz for 50 Hz systems.
• Adjustable range of 52-60 Hz for 60 Hz systems.

Functionality:

• Features a droop adjustment terminal, allowing parallel operation of multiple generators with synchronized load sharing.

External Adjustments:

• Terminals for external trimmer connections enable ±10% voltage adjustment using a 2 kΩ 1W potentiometer.

Remote Voltage Adjustment:

• Accepts a ±3V DC analog signal for remote voltage control, making it compatible with modern control systems.

Technical Specifications:

Electrical Input:

• Sensing Input Voltage: 195-265 V AC (L-N) or 340-450 V AC (L-L).
• Power Input Voltage: 195-265 V AC (L-N).

Electrical Output:

• Maximum Output Voltage: 90 V DC at 207 V AC input.
• Maximum Continuous Output Current: 40 A DC.

Regulation:

• Thermal Drift: ±0.03% per °C.
• Soft Start Duration: ~2 seconds.
• Unit Power Dissipation: 18 W (maximum).

Build-up Voltage:

• Requires at least 4 V AC at the AVR terminals to begin operation.

Environmental Tolerance:

• Operating Temperature Range: -20°C to +70°C.
• Storage Temperature Range: -30°C to +80°C.
• Humidity Tolerance: 95% non-condensing.
• Physical Dimensions: Height 80 mm.
• Weight: ~800 g.

Applications:

Generator Alternator Voltage Control:

• Ideal for alternators requiring precise voltage regulation.

Parallel Generator Operations:

• Enables load sharing via droop functionality in multi-generator setups.

Industrial Voltage Stabilization:

• Maintains stable output in industrial environments with variable load demands.

Remote Monitoring and Control:

• Suitable for integration into advanced generator control systems.

Advantages:

• Durable and robust design for demanding environments.
• Easy installation and compatibility with a wide range of alternators.
• Versatile frequency support for global applications.
• Enhanced safety features to protect connected equipment.

Maintenance and Installation:

• Installation is straightforward using the provided wiring terminals and diagrams.
• Requires minimal maintenance due to its rugged design and self-protection features.