Генератор PRO18S C/4

General Characteristics:

The Linz Electric PRO18S C/4 is a heavy-duty, brushless, self-excited synchronous alternator designed for medium-scale generator sets. It features AVR regulation (HVR11 or HVR30), ensuring voltage stability within ±1%. Operating at 1500 rpm (50 Hz) or 1800 rpm (60 Hz), it complies with EN60034-1, ISO 8528-3, and EN55011 standards for electrical, mechanical, and EMC performance.

Electrical Specifications:

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

• Rated Voltage (Star): 380–480 V

• Frequency: 50 Hz / 60 Hz

• Power Factor: 0.8

• Efficiency (Class H): up to 90.5%

• Total Harmonic Distortion (THD): <3%

• Voltage Regulation: ±1%

• Sustained Short-Circuit Current: >250% rated current

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

• RFI Suppression: EN55011 compliant

• Cooling Air Requirement: 8.8–10 m³/min

Winding & Excitation System:

• Stator: Double-layer winding with auxiliary winding

• Rotor: Winding with damping cage for improved stability

• Winding Pitch: 2/3

• Leads: 12 (reconnectable)

• Stator Resistance: 0.084 Ω @ 20°C

• Rotor Resistance: 5.62 Ω @ 20°C

• Exciter Stator Resistance: 15.0 Ω

• Exciter Rotor Resistance: 1.87 Ω

• Excitation Current: 0.89 A (no load) / 2.02 A (full load)

Reactances & Time Constants (50 Hz):

• Xd: 275% – 170%

• X’d: 22.8% – 13.4%

• X’’d: 7.4% – 4.6%

• Xq: 145% – 102%

• T’do: 202 ms

• T’d: 14 ms

• T’’d: 7 ms

Mechanical Specifications:

• Frame Forms: B2, B3/B14, B3/B9

• Weight: 203–210 kg, depending on frame form

• Moment of Inertia: 0.260–0.300 kg·m²

• Bearings:

– Drive End: 6308-2RS-C3

– Non-Drive End: 6306-2RS-C3

• Maximum Overspeed: 2250 rpm

• Cooling System: Self-ventilated airflow

Performance & Efficiency:

• Efficiency (50 Hz):

– 25% load: ~87%

– 50% load: ~89%

– 75% load: ~90%

– Full load: ~90.5%

• Efficiency (60 Hz): up to 91%

• Transient Load Behavior: <25% voltage dip with <0.5 s recovery

• Low waveform distortion thanks to 2/3 pitch winding

Environmental & Operating Conditions:

• Nominal Ambient Temperature: 40°C

• Altitude Derating: Above 1000 m

• Protection Degree: IP23

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

• Complies with EN vibration and rotor balance specifications

Certifications:

• EN60034-1

• ISO 8528-3

• EN55011

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