AQT-1650 Diesel Generator Set – 1650 kVA Prime Power with Perkins 4012-46TAG2A Engine & Leroy Somer/Stamford Alternator

The AQT-1650 is a high-capacity, 3-phase diesel generator engineered for demanding industrial and commercial power applications. Powered by the robust Perkins 4012-46TAG2A engine, this set delivers 1650 kVA prime power at 50 Hz (1320 kW) and 1669 kVA at 60 Hz (1329 kW). The 12-cylinder, V-form, 4-stroke engine is turbocharged and air-to-air aftercooled, offering superior fuel efficiency and performance in continuous-duty applications.

With a displacement of 45.842 liters and a compression ratio of 13:1, the engine is managed by an electronic governor conforming to ISO 8528 Part 1 Class G3 standards. The system operates at 1500 RPM for 50 Hz and 1800 RPM for 60 Hz output, with an overspeed threshold of 2250 RPM. It includes a 48A, 24V DC charging alternator and water-cooled system for thermal management.

This generator integrates either a Leroy Somer LSA50.2 L8 or Stamford PI734B alternator, both featuring 4 poles, 6 winding leads, single-bearing design, and Class H insulation. The alternator operates with AREP excitation and R450 automatic voltage regulator, ensuring precise ±0.5% voltage regulation and clean power with THF under 2% and TIF under 50. Cooling airflow is rated at 1.8 m³/sec, and ingress protection is IP23-rated.

Specifications:

– Model: AQT-1650
– Rated Power: 1650 kVA (Prime)
– Frequency: 50 Hz @ 1500 RPM / 60 Hz @ 1800 RPM
– Voltage: 400 V (50 Hz), 480 V (60 Hz)
– Phases: 3-Phase
– Power Output (50 Hz): 1320 kW / 1650 kVA
– Power Output (60 Hz): 1329 kW / 1669 kVA
– Over Speed Limit: 2250 RPM
– Voltage Regulation: ±0.5%
– Harmonic Distortion (THF): <2%
– Telephone Influence Factor (TIF): <50
– Cooling Air Flow: 1.8 m³/sec

Engine Specifications
– Engine Make: Perkins
– Engine Model: 4012-46TAG2A
– Configuration: 12 Cylinders, 60° Vee form
– Cycle: 4-Stroke
– Aspiration: Turbocharged & air-to-air aftercooled
– Cooling System: Water-cooled
– Governing Type: Electronic
– Governing Class: G3 (ISO 8528 Part 1)
– Compression Ratio: 13:1
– Displacement: 45.842 litres
– Bore / Stroke: 160 mm × 190 mm
– Charging Alternator: 48A, 24V DC

Alternator Specifications
– Alternator Brands: Leroy Somer or Stamford
– Alternator Models: Leroy Somer LSA50.2 L8 / Stamford PI734B
– Poles: 4
– Winding Leads: 6
– Bearing Type: Single Bearing
– Insulation Class: H
– Temperature Rise: 125°C at 40°C ambient
– Ingress Protection: IP23
– Excitation System: AREP (Auxiliary Winding)
– AVR Model: R450

For further specifications or to inquire about this equipment and ReflowX's logistics services, Please contact ReflowX at info@reflowx.com