64kW/80kVA Cummins Diesel Generator Set Technical Specifications

Jul. 05, 2025

Technical data of 64kW/80kVA Diesel Generator Set 

 

Genset Model: DB-64GF

Prime power: 64kW/80kVA

Standby power: 70kW/87.5kVA

Engine: Cummins 4BTA3.9-G11

Alternator: Shanghai Stamford GR225G

Controller: SmartGen HGM6110N-4G-G

 

64kW/80kVA Cummins Diesel Generator Set Technical Specifications


Configuration Features
Engine:Cummins 4BTA3.9-G11, Meet GB 20891-2014 China Stage II  emission  requirementsAlternator: Single bearing, IP23 protection, H class insulation.
40/50°C genuine radiator with cooling fan and fan safety guardAir filter, fuel filter, oil filter
Chassis and vibration absorberStandard control panel (integrated)
 24V charging generatorGas exhaust bellows, gas exhaust elbows, industrial silencers and standard parts for connections
Electronic GovernorAccompanying documentation
Maintenance-free lead-acid batteries and battery connection cables


Different voltage levels
Voltage (V)  Frequency (Hz) PhasePower factor Current( A)Standby powerPrime Power
440/2545030.810570kW/87.5kVA64kW/80kVA
415/2405030.8111.370kW/87.5kVA64kW/80kVA
400/2305030.8115.570kW/87.5kVA64kW/80kVA
380/2205030.8121.570kW/87.5kVA64kW/80kVA


Prime power (PRP): According to GB/T 2820 (equivalent to ISO 8528), the generator can operate unlimited hours within a specified power range, allowing a cumulative 10% overload for 1 hour every 12 hours of operation.

 

Standby power(ESP): Standby power represents the maximum power limit for emergency use. It shall not be exceeded and is equivalent to the fuel cut-off power. 


Engine Specifications
Manufacturer & engine Model:Cummins 4BTA3.9-G11
Air intake system:Turbochanger& Aftercooler
Fuel system:BYC PB
Cylinders no. & Type:4 cylinders, in-line
Displacement:3.9 L
Bore x Stroke:102×120 mm
Compression Ratio:17.3:1
Engine Speed:1500rpm
Engine minimum power:70kW / 93hp
Engine maximum power:80kW / 107hp
Governor system:Electronic Governor
Noise:100.9dB
Exhaust system
Exhaust Volume:8.04m³/min
Exhaust Gas Temperature:548°C
Maximum Back Pressure:10 kpa
Air intake/ Exhaust system
Maximum Intake Air Restriction:6 .2kPa
Air Flow Rate:4.2 m3/min
Exhaust Gas Flow Rate:158m3/min
Fuel system
Fuel Consumption @ 100% prime power208g/kW·h      17.6L/h
Fuel Consumption @ 75% prime power208g/ kW·h   13.2 L/h
Fuel Consumption @ 50% prime power214g/ kW·h   9.1 L/h
Lubrication system
Minimum Required Lube System Capacity11L
Engine Oil Consumption rate:≤4g/kwh
Sump Oil Capacity:8.9~9.5L
Cooling System
Total Coolant Capacity:24L
Maximum Top Tank Temperature for Standby Power:104°C


Alternator Specifications
Meet BS5000,  VDE0530,  NEMA MG1-22, IEC34, CSA C22  and  AS1359  standards
Technical Data
Phase:3
Wire connecting method:Y type, 3 phase 4 wire
Bearing:1
Power Factor:0.8 lag
Protection:IP23
Altitude requirements:≤1000m
Exciter type:Brushless Self-Excited
Insulation/temperature rise class:H/H
Waveform TIF<50
Waveform THF<2%
Rated Capacity:64kW / 80kVA
Efficiency:90%
Genset Technical Specifications
Voltage adjustment rate:≥±5%
Steady-state voltage regulation rate:≤±1%
Transient voltage deviation (100% sudden power reduction):≤+25%
Transient voltage deviation (sudden power increase):≤-20%
Voltage stability time (100% sudden power reduction):≤6S
Voltage stability time (sudden power increase):≤6S
Frequency adjustment rate:0-5%
Steady-state frequency band:≤1.5%
Transient frequency deviation (100% sudden power reduction):≤+12%
Transient frequency deviation (sudden power increase):≤-10%
Frequency stability time (100% sudden power reduction):≤5S
Frequency stability time (sudden power increase):≤5S


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