Генератор PRO18M E/4

• General Characteristics:

  The Linz Electric PRO18M E/4 is a heavy-duty, brushless, self-excited synchronous alternator designed for medium and large generator systems. It uses an AVR (HVR11 or HVR30) to maintain voltage regulation within ±1% under dynamic load conditions. Designed to run at 1500 rpm (50 Hz) or 1800 rpm (60 Hz), this alternator meets EN60034-1, ISO 8528-3, and EN55011 standards, ensuring compliance with global industrial requirements.

• Electrical Specifications:

  • Rated Power: 80 kVA (50 Hz) / 96 kVA (60 Hz)

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

  • Frequency: 50 / 60 Hz

  • Rated Power Factor: 0.8

  • Efficiency (Class H): 90.5% – 93% depending on load

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

  • Voltage Regulation: ±1% via AVR

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

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

  • Cooling Air Requirement: 12–14 m³/min depending on frequency

  • RFI Suppression: EN55011 standard compliant

• Winding and Excitation System:

  • Stator Type: Double-layer winding with auxiliary winding

  • Rotor: Winding with dampening cage for stability

  • Winding Pitch: 2/3

  • Number of Leads: 12

  • Stator Resistance: 0.035 Ω at 20°C

  • Rotor Resistance: 3.10 Ω at 20°C

  • Exciter Stator Resistance: 10.8 Ω

  • Exciter Rotor Resistance: 0.55 Ω

  • Excitation Current: 1.25 A (no load) / 3.10 A (full load)

• Reactances and Time Constants (50 Hz):

  • Xd: 215% – 142%

  • X’d: 16.8% – 10.9%

  • X’’d: 5.8% – 3.9%

  • Xq: 122% – 87%

  • T’do: 115 ms

  • T’d: 9 ms

  • T’’d: 6 ms

• Mechanical Specifications:

  • Frame Forms: B2, B3/B14, B3/B9

  • Weight: 278–290 kg depending on frame

  • Moment of Inertia: 0.64–0.70 kg·m² depending on flange/base

  • Bearings:

  • Drive End: 6310-2RS-C3

  • Non-Drive End: 6308-2RS-C3

    • Cooling Method: Self-ventilated airflow

    • Maximum Overspeed: 2250 rpm

• Performance and Efficiency:

  • Efficiency (50 Hz):

  • 25% load: ~89%

  • 50% load: ~92%

  • 75% load: ~92.8%

  • 100% load: 93%

    • Efficiency (60 Hz): Up to 93.5% at full load

    • Transient Voltage Dip: <25%, recovery time <0.5 s

• Environmental and Operational Conditions:

  • Nominal Ambient Temperature: 40°C

  • Altitude Derating: Begins >1000 m

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

  • Protection Degree: IP23

  • Complies with EN vibration and mechanical balancing norms

• Certifications and Compliance:

  • EN60034-1

  • ISO 8528-3

  • EN55011 (EMC)

  • Optional: UL 1446, CSA-C22.2 No.100, UL1004-1, UL1004-4

The PRO18M E/4 combines high efficiency, robust electrical stability, and strong mechanical construction, making it an excellent choice for industrial generator sets requiring consistent, clean, and dependable power output.