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Alternator PRO22M F/4

Linz Electric PRO22M F/4 Alternator – 150 kVA Three-Phase Industrial Brushless Alternator

The PRO22M F/4 alternator from Linz Electric is a high-performance, three-phase, 4-pole brushless synchronous alternator designed for industrial generator sets. Delivering 150 kVA at 50 Hz and 180 kVA at 60 Hz, it ensures clean and stable power with AVR voltage regulation, <3% THD, and excellent efficiency. Built with Class H insulation, IP23 protection, and a highly durable self-excited excitation system, the PRO22M F/4 offers long-lasting reliability for both standby and continuous duty applications.

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Alternator Model

PRO22M F/4

50Hz (kVA)

150

60Hz (kVA)

180
Control Systemself-excited
A.V.R.HVR11-HVR30
Voltage Regulation± 1 %
Sustained Short Circuit> 250 % of rated current
Rated Power Factor0.8

  • General Characteristics:

    The Linz Electric PRO22M F/4 is a heavy-duty, brushless, self-excited synchronous alternator engineered for medium–large industrial generator systems. It features an AVR regulator (HVR11 or HVR30) providing ±1% voltage regulation. Designed to operate at 1500 rpm (50 Hz) and 1800 rpm (60 Hz), it complies with EN60034-1, ISO 8528-3, and EN55011 (EMC) standards.

  • Electrical Specifications:

    • Rated Power: 150 kVA (50 Hz) / 180 kVA (60 Hz)

    • Rated Voltage (Star): 380–480 V

    • Frequency: 50 / 60 Hz

    • Power Factor: 0.8

    • Efficiency: up to 94% depending on load

    • Total Harmonic Distortion (THD): <3%

    • Voltage Regulation: ±1%

    • Sustained Short-Circuit Capability: >250% of nominal current

    • Overload Rating: 110% for 1 hour every 6 hours

    • Cooling Air Requirement: 22–27 m³/min

  • Winding & Excitation System:

    • Stator: Double-layer winding with auxiliary winding

    • Rotor: Wound rotor with damping cage

    • Winding Pitch: 2/3

    • Number of Leads: 12

    • Stator Resistance: 0.018 Ω @ 20°C

    • Rotor Resistance: 1.90 Ω @ 20°C

    • Exciter Stator Resistance: 7.8 Ω

    • Exciter Rotor Resistance: 0.27 Ω

    • Excitation Current:

    – No-load: 1.65 A

    – Full load: 4.40 A

  • Reactances & Time Constants (50 Hz):

    • Xd: 150% – 100%

    • X’d: 15.3% – 10.0%

    • X’’d: 5.0% – 3.2%

    • Xq: 85% – 60%

    • T’do: 95 ms

    • T’d: 7 ms

    • T’’d: 5 ms

  • Mechanical Specifications:

    • Frame Configurations: B3, B3/B14, B3/B9

    • Weight: 345–365 kg depending on configuration

    • Moment of Inertia: 1.20–1.38 kg·m²

    • Bearings:

    – Drive End: 6313-2RS-C3

    – Non-Drive End: 6310-2RS-C3

    • Maximum Overspeed: 2250 rpm

    • Cooling Method: Self-ventilated airflow system

  • Performance & Efficiency:

    • 50 Hz Efficiency:

    – 25% load: ~92%

    – 50% load: ~93%

    – 75% load: ~94%

    – 100% load: ~94%

    • 60 Hz Efficiency: up to 94.5%

    • Transient Load Response: <25% voltage dip with <0.5 s recovery

    • Low waveform distortion thanks to 2/3 pitch winding

  • Environmental & Operating Conditions:

    • Ambient Temperature: 40°C

    • Altitude Derating: Above 1000 m

    • Insulation Class: Class H

    • Protection: IP23

    • Mechanical and vibration compliance per EN standards

  • Certifications:

    • EN60034-1

    • ISO 8528-3

    • EN55011

    • Optional UL/CSA certification packages

Datasheet

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