Sincro SK500 4-pole Alternators Constant Speed. Brushless / AVR (1500-1800 rpm)

Sincro SK500 Series Alternators for industrial gen-sets

4-Pole Synchronous Brushless/AVR |  Synchronous Low Voltage AC IP23 | 3-Phase | 1875-2600 kVA | 50 Hz/60 Hz | 1500/1800 rpm

Ultra-High Capacity Synchronous Alternators for Critical Power Infrastructure

The Sincro SK500 series represents the ultimate expression of industrial power generation technology, delivering exceptional capacity, precision, and reliability for the most demanding applications. These premium 4-pole synchronous alternators with PMG excitation combine superior electrical performance with robust mechanical design to provide dependable power generation at the highest capacity levels.

Key Features

• Power Range: 1875-2600 kVA at 50 Hz

• Configuration: 4-pole, three-phase, brushless with AVR

• Protection Rating: IP23 standard (IP44 optional)

• Excitation System: Brushless with Permanent Magnet Generator (PMG)

• Voltage Regulation Accuracy: ±0.25% with load from 0-100%, speed variation from -2% to +5%

• Compact Design: Optimized footprint-to-power ratio

• Easy AVR Access: Simplified maintenance and adjustments

• Multiple Certifications: BV marine, DNV, CSA/UL, UL 1446 insulation system

Technical Specifications

Electrical Performance

• Insulation Class: H

• Terminal Configuration: 4 leads standard (12 leads optional)

• Electromagnetic Compatibility: EN 61000-6-2, EN 61000-6-4

• Short Circuit Current: > 300% of rated current (In) for 10 seconds

• Total Harmonic Distortion: < 2% (line to line, at full linear and balanced rated load)

• Underspeed Protection: Included in standard version

• Standards Compliance: EN 60034-1, IEC 60034-1, ISO 8528-3

Mechanical Characteristics

• Protection Degree: IP23 standard

• Bearings: Heavy-duty dimensioned for industrial applications

• Transient Performance: Less than 18% voltage drop for rated step load at 0.8 power factor

• Tropicalization: Standard on all models

Operating Conditions

Power ratings are based on the following reference conditions:

• Ambient Temperature: 40°C

• Altitude: Below 1000m above sea level

• Power Factor: 0.8

• Load Type: Symmetrical, non-distorting

Stand-by Power Rating Conditions

• Maximum Ambient Temperature: 27°C

• Application: Continuous supply during utility power failure

• Overload Capability: No overloads permitted

Customization Options

The SK500 series offers extensive customization possibilities to meet specific application requirements:

• Special Voltage Configurations: Custom voltage outputs for specific regional or application needs

• Terminal Arrangements: Standard 4 leads or optional 12 leads for application flexibility

• Enhanced Protection: Optional IP44 rating for more demanding environments

• Enhanced Insulation: Double impregnation for extreme environmental conditions

• Temperature Management: Optional heaters for cold climate operation

• Control Options: Droop-kit for parallel operation

• Temperature Monitoring: PTC or PT100 temperature sensors

• Power Factor Correction: PFC options available

• Specialized Versions: Customized configurations for marine, military, medium voltage, and oil & gas applications

Applications

The SK500 series is engineered for the most critical power applications requiring massive capacity:

• Major Data Centers: Hyperscale and colocation facilities with multi-megawatt requirements

• Large Industrial Complexes: Heavy manufacturing, process industry, and petrochemical facilities

• Power Plants: Auxiliary power systems and black-start capabilities

• Healthcare Infrastructure: Major medical centers and regional hospital networks

• Maritime Applications: Large vessels, offshore platforms, and port facilities

• Defense Installations: Military bases and strategic infrastructure

• Mining Operations: Large-scale mining and mineral processing facilities

• Water Management: Major municipal water treatment and distribution systems

• Transportation Hubs: International airports and large railway terminals

Engineering Excellence

Precision Voltage Control

With industry-leading voltage regulation accuracy of ±0.25%, the SK500 series delivers exceptional stability for sensitive equipment and critical processes. The standard PMG excitation system ensures reliable performance even under the most challenging load conditions.

Superior Power Quality

Engineered to deliver clean power with total harmonic distortion below 2%, these alternators ensure compatibility with sensitive electronic systems and complex control equipment. This exceptional harmonic performance minimizes interference with communications systems and extends the life of connected equipment.

Robust Fault Management

The ability to deliver over 300% of rated current for 10 seconds during fault conditions ensures reliable operation of protection systems and contributes to overall electrical system stability and safety.

Thermal Management

Advanced cooling system design enables sustained operation at full capacity even in high ambient temperatures, ensuring reliable performance in diverse global installations.

Mechanical Durability

Constructed with premium materials and heavy-duty bearings, the SK500 series provides extended service life with minimal maintenance requirements, even in continuous operation scenarios.

Integration & Support

System Integration

Designed for seamless integration with large prime movers, control systems, and power distribution equipment. Compatible with leading generator control panels and power management systems.

Contact your Sincro representative today to explore how the SK500 series can address your most challenging power infrastructure requirements.