Alternateur A.R.K184F

A.R.K184F Alternateur – Alternateur Sans Balais Haute Efficacité pour Applications Industrielles

L’A.R.K184F est un alternateur synchrone triphasé sans balais conçu pour les systèmes de puissance industriels, de location et de secours. Son excitation auto-excitée avec AVR SX460 offre une régulation de tension ±1 %, un THD < 5 % et un rendement jusqu’à 87,3 %. Avec classe H, IP23 et roulements graissés à vie, il combine performance, durabilité et faible maintenance pour les environnements difficiles.

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Alternator Model

A.R.K184F

50Hz (kVA)

25

60Hz (kVA)

28.8
Système d’excitationSELF EXCITED
A.V.R. OPTIONAL SX440
Régulation de tension à régime établi ± 1.0 %
Court-circuit prolongé >300% OF RATED CURRENT
Facteur de puissance nominal0.8

Electrical Performance

  • Type: Three-phase, brushless, self-excited synchronous alternator

  • Frequency: 50 / 60 Hz

  • Power Factor: 0.8

  • Voltage Range: 190–480 V (configurable in star, delta, or parallel star)

  • Voltage Regulation: ±1.0%

  • Total Harmonic Distortion (THD): <5% (balanced load), <1.5% (no-load)

  • Sustained Short Circuit Current: >300% of rated current

  • Efficiency: 84.2–87.3% (depending on frequency and voltage)

  • Telephone Harmonic Factor (THF): <2%

  • Telephone Interference Factor (TIF): <50

  • Excitation System: Self-excited, AVR-controlled

  • AVR Models: SX460 (standard), SX440 / AS440 / MX341 / MX321 optional (PMG-compatible)

  • Short Circuit Ratio (1/Xd): 6.1 typical

Reactances (Per Unit, Saturated)

  • Xd (Synchronous): 1.53–2.16

  • X’d (Transient): 0.158–0.210

  • X’’d (Subtransient): 0.10–0.15

  • Xq (Quadrature): 0.77–1.09

  • X’’q (Quadrature Subtransient): 0.17–0.25

  • X₂ (Negative Sequence): 0.14–0.20

  • X₀ (Zero Sequence): 0.07–0.09

  • Leakage Reactance (XL): 0.06–0.09

  • Time Constants:

    • Transient (T’d): 0.022 s

    • Subtransient (T’’d): 0.005 s

    • Armature (Ta): 0.0065 s

    • Open Circuit Field (T’do): 0.4 s

Construction & Design

  • Insulation Class: H (125°C rise at 40°C ambient)

  • Protection: IP23 (optional IP44 with 5–10% derating)

  • Cooling: Self-ventilated air cooling

    • 50 Hz: 0.095 m³/s (200 cfm)

    • 60 Hz: 0.119 m³/s (250 cfm)

  • Frame: Steel frame with cast aluminum front and rear covers

  • Stator: Double-layer winding, 2/3 pitch eliminates triple harmonics

  • Rotor: Damped cage rotor, dynamically balanced to BS6861 standards

  • Bearings:

    • Drive End: 6309-2RS (ISO standard, sealed-for-life)

    • Non-Drive End: 6306-2RS (ISO standard, sealed-for-life)

  • Overspeed Capability: 120% of rated speed (2250 rpm)

  • Leads: 12 reconnectable leads (star, delta, or parallel star)

  • Stator Resistance: 0.25 Ω/phase (22°C, star connection)

  • Rotor Resistance: 0.74 Ω (22°C)

  • Rotor Inertia (WR²): 0.1909 kg·m²

Dimensions & Weight

  • Rotor Weight: 49.7–50.5 kg

  • Stator Weight: 55 kg

  • Complete Alternator Weight: 151–154 kg

  • Shipping Weight: 141–156 kg (crated)

  • Packing Dimensions: 84 × 59 × 75 cm

Regulation & Control

  • Excitation: Self-excited, AVR-controlled

  • AVR Models: SX460 (standard), SX440 / AS440 / MX341 / MX321 optional

  • Voltage Regulation Accuracy: ±1.0%

  • Parallel Operation: Supported (AVR-dependent)

  • RFI Suppression: BS EN 61000-6-2 & BS EN 61000-6-4, VDE 0875G/N compliant

  • Standards Compliance: IEC60034, GB755, BS5000, VDE0530, NEMA MG1-22, CSA C22.2-100, AS1359

  • Certification: ISO9001 Quality Management System

Environmental Parameters

  • Operating Temperature: –15°C to +40°C

  • Relative Humidity: Up to 95% (non-condensing)

  • Altitude: Up to 1000 m without derating

  • Cooling Air Requirement: 0.095–0.119 m³/s

  • Noise & Vibration: Balanced per BS6861 mechanical standards

Performance Summary

  • Efficiency Range: 84–87.3%

  • Voltage Dip (Transient Load): ≤25% at 0.8 PF

  • Recovery Time: <0.5 seconds

  • Locked Rotor Motor Starting: >300% rated current

  • Applications: Prime power, standby, rental, telecom, mobile, lighting tower, refrigeration, and railway generator systems

Datasheet

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