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Le PRO28S B/4 délivre 200 kVA à 50 Hz et 240 kVA à 60 Hz, assurant une tension stable, une excellente efficacité et une faible distorsion harmonique. Doté d’une isolation classe H, d’une protection IP23 et d’une régulation AVR, il convient aux groupes électrogènes industriels et de secours.
General Characteristics:
• Three-phase synchronous alternator
• 4-pole, brushless, self-excited
• Electronic AVR voltage regulation
• Rated speed: 1500 rpm (50 Hz) / 1800 rpm (60 Hz)
• Cooling: Self-ventilated
• Protection degree: IP23
• Insulation class: H
• Compliance: EN 60034-1, IEC 60034-1, ISO 8528-3
Electrical Specifications:
• Rated Power at 50 Hz: 100 kVA
• Rated Power at 60 Hz: 120 kVA
• Rated voltage: 400/230 V (50 Hz) / 480/277 V (60 Hz)
• Rated current: 144.3 A
• Frequency: 50 / 60 Hz
• Phase: Three-phase
• Power factor: 0.8
• Efficiency:
– 91.1% at 50 Hz
– 92.3% at 60 Hz
• Short-circuit transient reactance X’’d: 0.076 p.u.
• Harmonic distortion (THD): < 5%
• Winding pitch: 2/3
Excitation & Regulation:
• Brushless excitation with auxiliary winding
• AVR installed inside terminal box
• 12-lead reconnectable winding
• Stable voltage output during load variation
Mechanical Specifications:
• Frame size: 28
• Dimensions:
– Length (L): 804 mm
– Height (H): 630 mm
– Width (W): 520 mm
• Shaft diameter: 42 mm
• Total weight: 259 kg
• Cooling: Shaft-mounted fan
• Mounting: Suitable for single-bearing generator coupling
Operational Performance:
• Excellent response to sudden load changes
• High efficiency reduces generator fuel consumption
• Suitable for continuous-duty and standby systems
• Compatible with resistive, inductive, and nonlinear loads
Applications:
• Industrial and commercial generator sets
• Emergency backup power systems
• Rental and construction sector gensets
• Telecom, utilities, infrastructure power support
