28kW/28kVA brushless AC single-phase diesel alternator designed for Caterpillar genset applications. Manufactured by WERNA with CE and ISO9001 certifications.

• Permanent magnetic generators providing invariable excitation
• Easy connection with power networks or other generators
• Standard 2/3 pitch windings control excessive midline current
• Balanced rotor with single or two sealed ball bearings
• Convenient installation with easy access to terminals and components
• Wide range of flange adaptors and coupling discs

Class H insulation with special materials and vacuum impregnation dipping process. Components are treated to withstand corrosive environments and ensure reliable operation.

2/3 pitch winding design effectively eliminates third harmonic waves (3rd, 9th, 15th), making it ideal for UPS applications with nonlinear loads. The structure controls excessive currents in the midline when connected in parallel with networks.

THF (BS4999) <2%, TIF (ASAC50.12) <50. Brushless apparatus and quality AVR ensure minimal radio interference. RFI noise filter available as option.

• Each unit undergoes 4+ hours of commissioning testing
• Comprehensive testing including idle load, full load, and 10% overload
• Noise level testing and verification
• Control panel meter calibration and functionality check
• Complete appearance and labeling inspection