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Alternator PRO35L H/4

Linz Electric PRO35L H/4 Alternator – 800 kVA Three-Phase Brushless Synchronous Alternator

The PRO35L H/4 alternator from Linz Electric is a high-capacity three-phase, 4-pole brushless synchronous alternator designed for industrial-grade generator systems. Delivering 800 kVA at 50 Hz and 960 kVA at 60 Hz, it provides stable voltage regulation, low harmonic distortion, and long-term reliability. With Class H insulation, IP23 protection, optimized ventilation, and AVR-controlled excitation, this alternator is ideal for heavy-duty and continuous-power applications.

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Alternator Model

PRO35L H/4

50Hz (kVA)

800

60Hz (kVA)

960
Control Systemself-excited
A.V.R.HVR30
Voltage Regulation± 1 %
Sustained Short Circuit> 300 % of rated current
Rated Power Factor0,8

General Characteristics

  • Three-phase synchronous alternator

  • 4-pole, brushless, self-excited

  • Electronic AVR regulation

  • Rated speed: 1500 rpm (50 Hz) / 1800 rpm (60 Hz)

  • Cooling system: 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: 800 kVA

  • Rated Power at 60 Hz: 960 kVA

  • Rated voltage: 400/230 V (50 Hz) / 480/277 V (60 Hz)

  • Rated current: 505.1 A

  • Frequency: 50 / 60 Hz

  • Phase: Three-phase

  • Power factor: 0.8

  • Efficiency:

    • 93.6% at 50 Hz

    • 94.6% at 60 Hz

  • Transient reactance X’’d: 0.056 p.u.

  • Harmonic distortion (THD): < 5%

  • Winding pitch: 2/3

Excitation & Voltage Regulation

  • Brushless excitation with auxiliary winding

  • AVR positioned inside terminal box

  • 12-lead reconnectable stator winding

  • Stable voltage under dynamic load conditions

Mechanical Specifications

  • Frame size: 35

  • Dimensions:

    • Length (L): 1148 mm

    • Height (H): 806 mm

    • Width (W): 660 mm

  • Shaft diameter: 65 mm

  • Total weight: 630 kg

  • Cooling: Shaft-mounted fan

  • Compatible with single-bearing coupling arrangements

Operational Performance

  • Excellent voltage stability under sudden load application

  • High electrical efficiency improves genset fuel performance

  • Suitable for continuous-duty, standby, and heavy-load operation

  • Performs effectively with inductive, resistive, and nonlinear loads

Applications

  • Industrial generator packages

  • Heavy-duty commercial power systems

  • Rental & construction power modules

  • Backup and emergency power for utilities and infrastructure

Datasheet

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