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Alternateur PRO18L G/4

Alternateur Linz Electric PRO18L G/4 – Alternateur Synchrone Triphasé Sans Balais Haute Efficacité

L’alternateur PRO18L G/4 fournit 65 kVA à 50 Hz et 78 kVA à 60 Hz, offrant une excellente stabilité de tension grâce à l’AVR, une faible distorsion harmonique (<3 % THD) et un rendement jusqu’à 92 %. Construit avec isolation classe H, IP23 et excitation auto-excitée, il garantit une fiabilité durable dans des conditions industrielles exigeantes.

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Puissance Principale (kVA / kW)

Puissance Standby (kVA / kW)

Vitesse (r.p.m)

Tension Standard (V)

Facteur puissance (Cos Phi)

  • General Characteristics:

    The Linz Electric PRO18L G/4 is a brushless, self-excited, three-phase synchronous alternator designed for medium-to-heavy-duty generator sets. It uses an AVR-controlled excitation system (HVR11 or HVR30) that maintains ±1% voltage regulation accuracy. Operating at 1500 rpm (50 Hz) or 1800 rpm (60 Hz), the alternator is fully compliant with EN60034-1, ISO 8528-3, and EN55011 standards.

  • Electrical Specifications:

    • Rated Power: 65 kVA (50 Hz) / 78 kVA (60 Hz)

    • Frequency: 50 / 60 Hz

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

    • Power Factor: 0.8

    • Efficiency (Class H): 89.5% – 92.5%, depending on load and frequency

    • THD (Total Harmonic Distortion): <3% at no-load and full-load

    • Voltage Regulation: ±1% with AVR

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

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

    • RFI Compliance: EN55011

    • Cooling Air Requirement: 11.5–13 m³/min depending on frequency

  • Winding and Excitation System:

    • Stator: Double-layer winding with auxiliary winding

    • Rotor: Winding with damping cage to ensure stability

    • Winding Pitch: 2/3

    • Number of Leads: 12 (flexible reconnection)

    • Stator Resistance: 0.037 Ω @ 20°C

    • Rotor Resistance: 3.45 Ω @ 20°C

    • Exciter Stator Resistance: 10.8 Ω

    • Exciter Rotor Resistance: 0.55 Ω

    • Excitation Current: 1.13 A (no-load) / 2.89 A (full-load)

  • Reactances & Time Constants (50 Hz):

    • Xd: 225% – 152%

    • X’d: 17.8% – 12.0%

    • X’’d: 6.3% – 4.2%

    • Xq: 130% – 92%

    • T’do: 121 ms

    • T’d: 9 ms

    • T’’d: 6 ms

  • Mechanical Specifications:

    • Frame Forms: B2, B3/B14, B3/B9

    • Weight: 255–264 kg depending on frame form

    • Moment of Inertia: 0.510–0.560 kg·m² depending on mounting

    • Bearings:

    • Drive End: 6309-2RS-C3

    • Non-Drive End: 6307-2RS-C3

      • Cooling Method: Self-ventilated

      • Maximum Overspeed: 2250 rpm

  • Performance and Efficiency:

    • Efficiency (50 Hz):

    • 25% load: ~88%

    • 50% load: 91%

    • 75% load: 92.3%

    • Full load: up to 92.5%

      • Efficiency (60 Hz):

    • Up to 93% at full load

      • Transient Voltage Dip: <25% with fast recovery (<0.5 s)

  • Environmental & Operational Conditions:

    • Nominal Ambient Temperature: 40°C

    • Altitude Derating: Begins above 1000 m

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

    • Protection Degree: IP23

    • Vibration and noise compliant with EN standards

  • Certifications:

    • EN60034-1

    • ISO 8528-3

    • EN55011 (conducted and radiated emissions)

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

Datasheet

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