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Alternator PRO22M E/4

Linz Electric PRO22M E/4 Alternator – 130 kVA Three-Phase Industrial Brushless Alternator

The PRO22M E/4 alternator by Linz Electric is a robust, three-phase, 4-pole brushless synchronous alternator delivering 130 kVA at 50 Hz and 156 kVA at 60 Hz. Engineered for industrial generator systems, it provides stable and clean output with AVR regulation, <3% THD, and high efficiency up to 93.5%. Featuring Class H insulation, IP23 protection, and a high-performance self-excited excitation system, the PRO22M E/4 ensures durable, reliable operation under demanding continuous or standby load conditions.

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Alternator Model

PRO22M E/4

50Hz (kVA)

130

60Hz (kVA)

156
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 PRO22M E/4 is a heavy-duty synchronous alternator designed for medium–large industrial generator sets. With a brushless, self-excited excitation system and advanced AVR (HVR11/HVR30), it maintains ±1% voltage accuracy. Designed for 1500 rpm (50 Hz) and 1800 rpm (60 Hz) operation, the alternator meets EN60034-1, ISO 8528-3, and EN55011 (EMC) standards.

  • Electrical Specifications:

    • Rated Power Output: 130 kVA (50 Hz) / 156 kVA (60 Hz)

    • Rated Voltage Range (Star): 380–480 V

    • Frequency: 50 Hz / 60 Hz

    • Power Factor: 0.8

    • Efficiency: 92–93.5% depending on load

    • Total Harmonic Distortion (THD): <3% (no load + full load)

    • Voltage Regulation: ±1%

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

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

    • Required Cooling Airflow: 16–20 m³/min depending on frequency

    • EMC/RFI: Compliant with EN55011

  • Winding & Excitation System:

    • Stator: Double-layer winding with auxiliary winding

    • Rotor: Wound rotor with damping cage

    • Winding Pitch: 2/3 for low harmonic distortion

    • Number of Leads: 12

    • Stator Resistance: 0.025 Ω @ 20°C

    • Rotor Resistance: 2.45 Ω @ 20°C

    • Exciter Stator Resistance: 8.4 Ω

    • Exciter Rotor Resistance: 0.30 Ω

    • Excitation Current:

    – 1.40 A (no-load)

    – 3.60 A (full load)

  • Reactances & Time Constants (50 Hz):

    • Xd: 175% – 118%

    • X’d: 16% – 10.5%

    • X’’d: 5.2% – 3.3%

    • Xq: 92% – 66%

    • T’do: 102 ms

    • T’d: 8 ms

    • T’’d: 5 ms

  • Mechanical Specifications:

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

    • Weight: 315–335 kg depending on frame

    • Moment of Inertia: 0.98–1.15 kg·m²

    • Bearings:

    – Drive End: 6312-2RS-C3

    – Non-Drive End: 6309-2RS-C3

    • Maximum Overspeed: 2250 rpm

    • Cooling: Self-ventilated airflow

  • Performance & Efficiency:

    • 50 Hz Efficiency:

    – 25% load: ~91%

    – 50% load: ~92.5%

    – 75% load: ~93%

    – 100% load: ~93.5%

    • 60 Hz Efficiency: Up to 94%

    • Transient Response:

    – <25% voltage dip on sudden load

    – Voltage recovery <0.5 s

    • Stable waveform under nonlinear loads due to low THD

  • Environmental & Operational Conditions:

    • Ambient Temperature Rating: 40°C

    • Altitude Derating Above: 1000 m

    • Insulation Class: Class H (125°C rise)

    • Protection Class: IP23

    • Vibration: Compliant with EN mechanical balance requirements

  • Certifications:

    • EN60034-1

    • ISO 8528-3

    • EN55011

    • Optional UL1446, CSA-C22.2 No.100, UL1004-1 / UL1004-4 packages

Datasheet

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