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Alternator PRO40M D/4

Linz Electric PRO40M D/4 Alternator – 1350 kVA Three-Phase Brushless Synchronous Alternator

Description:

The PRO40M D/4 alternator from Linz Electric is a high-performance, three-phase, 4-pole brushless synchronous alternator engineered for industrial generator applications. Delivering 1350 kVA at 50 Hz and 1620 kVA at 60 Hz, it ensures reliable voltage stability, low harmonic distortion, and efficient long-term operation. Built with Class H insulation, IP23 protection, and AVR-controlled excitation, it is suitable for demanding continuous-duty and standby power systems.

Alternator Model

PRO40M D/4

50Hz (kVA)

1350

60Hz (kVA)

1620
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 voltage regulation

  • Rated speed: 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

Electrical Specifications

  • Rated Power at 50 Hz: 1350 kVA

  • Rated Power at 60 Hz: 1620 kVA

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

  • Rated current: 332.0 A

  • Power factor: 0.8

  • Frequency: 50 / 60 Hz

  • Phase: Three-phase

  • Efficiency:

    • 93.0% at 50 Hz

    • 94.1% at 60 Hz

  • Short-circuit transient reactance X’’d: 0.064 p.u.

  • Harmonic distortion (THD): < 5%

  • Winding pitch: 2/3

Excitation & Regulation

  • Brushless excitation with auxiliary winding

  • AVR located inside terminal box

  • 12-lead reconnectable winding

  • Stable voltage control under load steps

Mechanical Specifications

  • Frame size: 40

  • Dimensions:

    • Length (L): 1088 mm

    • Height (H): 758 mm

    • Width (W): 620 mm

  • Shaft diameter: 65 mm

  • Total weight: 490 kg

  • Cooling: Shaft-mounted fan

  • Mounting: Suitable for single-bearing generator coupling

Operational Performance

  • Excellent voltage recovery during sudden load changes

  • High electrical efficiency supports better fuel economy

  • Suitable for continuous-duty and standby operation

  • Works reliably with inductive, resistive, and nonlinear loads

Applications

  • Industrial generator sets

  • Commercial emergency power systems

  • Rental & construction gensets

  • Utility, telecom, and infrastructure backup power

Datasheet

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