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Alternator A.R.K164C

A.R.K164C Alternator – Brushless, Compact, and High-Efficiency Power Generation

The A.R.K164C alternator, manufactured by Arken Power Solutions, is a three-phase brushless synchronous alternator engineered for compact generator systems requiring reliable and efficient performance. Featuring a self-excited system with SX460 AVR for precise voltage control, it delivers ±1% voltage regulation, THD below 5%, and efficiency up to 82%. Built with Class H insulation, IP23 protection, and sealed-for-life bearings, the A.R.K164C ensures outstanding mechanical strength, long service life, and stable operation under varying load conditions. Complying with IEC60034, BS5000, NEMA MG1-22, CSA C22.2-100, and ISO9001, it is ideal for prime, rental, mobile, and standby power applications.

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Alternator Model

A.R.K164C

50Hz (kVA)

13.5

60Hz (kVA)

16.9
Control SystemSELF EXCITED
A.V.R. OPTIONAL SX440
Voltage Regulation ± 1.0 %
Sustained Short Circuit >300% OF RATED CURRENT
Rated Power Factor0.8

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 linear load), <1.5% (no-load)

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

  • Efficiency: Up to 82.4% depending on load and voltage configuration

  • Telephone Harmonic Factor (THF): <2%

  • Telephone Interference Factor (TIF): <50

  • Excitation System: Self-excited, AVR-controlled

  • AVR Models: SX460 (standard), SX440 (optional), MX341 (PMG optional)

  • Short Circuit Ratio (1/Xd): 6.2–8.9 typical

Reactances (Per Unit at Rated kVA)

  • Xd (Synchronous): 1.754–2.303

  • X’d (Transient): 0.166–0.236

  • X’’d (Subtransient): 0.104–0.147

  • Xq (Quadrature): 0.810–1.144

  • X’’q (Quadrature Subtransient): 0.187–0.263

  • X₂ (Negative Sequence): 0.156–0.221

  • X₀ (Zero Sequence): 0.071–0.100

  • Leakage Reactance (XL): 0.065–0.092

  • Time Constants:

    • Transient (T’d): 0.016 s

    • Subtransient (T’’d): 0.004 s

    • Armature (Ta): 0.005 s

    • Open Circuit Field (T’do): 0.3 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: 0.071 m³/s (150 cfm)

    • 60 Hz: 0.09 m³/s (191 cfm)

  • Frame: Robust 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 per BS6861 standards

  • Bearings:

    • Drive End: 6309-2RS (sealed-for-life ball bearing)

    • Non-Drive End: 6306-2RS (sealed-for-life ball bearing)

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

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

  • Stator Resistance: 0.785 Ω/phase (22°C, star connection)

  • Rotor Resistance: 0.52 Ω (22°C)

  • Rotor Inertia (WR²): 0.117 kg·m²

Dimensions & Weight

  • Rotor Weight: 31.4 kg (single bearing) / 32.18 kg (double bearing)

  • Stator Weight: 31.2 kg

  • Complete Alternator Weight: 103 kg (single bearing) / 106 kg (double bearing)

  • Shipping Weight: 110–116 kg

  • Packing Dimensions: 64 × 54 × 72 cm

Regulation & Control

  • Excitation: Self-excited, AVR-controlled

  • AVR Model: SX460 (standard), SX440 / 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: 0.071–0.09 m³/s

  • Noise & Vibration: Balanced per BS6861 mechanical standards

Performance Summary

  • Efficiency Range: 78–82%

  • 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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