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General Characteristics:
• Three-phase, 4-pole synchronous alternator
• Brushless, self-excited excitation system
• Electronic voltage regulation (AVR)
• Rated speeds: 1500 rpm (50 Hz) / 1800 rpm (60 Hz)
• Cooling system: Self-ventilated
• Protection degree: IP23
• Insulation class: H
• Standards: EN 60034-1, IEC 60034-1, ISO 8528-3
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Electrical Specifications:
• Rated Power (50 Hz): 400 kVA
• Rated Power (60 Hz): 480 kVA
• Rated voltage: 400/230 V (50 Hz) / 480/277 V (60 Hz)
• Rated current: 289.0 A
• Power factor: 0.8
• Frequency: 50 / 60 Hz
• Phase: Three-phase
• Efficiency:
– 92.3% at 50 Hz
– 93.3% at 60 Hz
• Transient reactance X’’d: 0.058 p.u.
• Harmonic distortion (THD): < 5%
• Winding pitch: 2/3
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Excitation & Regulation:
• Brushless excitation with auxiliary winding
• AVR installed inside terminal box
• 12-lead reconnectable stator winding (various voltage configurations)
• Stable voltage under load variations
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Mechanical Specifications:
• Frame size: 28
• Dimensions:
– Length (L): 973 mm
– Height (H): 690 mm
– Width (W): 540 mm
• Shaft diameter: 55 mm
• Total weight: 396 kg
• Cooling system: Forced by shaft-mounted fan
• Mounting: Suitable for single-bearing generator coupling
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Operational Performance:
• Stable voltage recovery during sudden load steps
• High electrical efficiency improves fuel performance of gensets
• Suitable for continuous and standby duty
• Works with resistive, inductive, and nonlinear loads
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Applications:
• Industrial and commercial generator sets
• Backup/emergency power plants
• Rental and construction gensets
• Telecommunications, utilities, infrastructure systems
