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dingbo@dieselgeneratortech.com
+86 134 8102 4441
Jul. 05, 2025
Technical data of 45kW/56.25kVA Diesel Generator Set
Genset Model: DB-45GF
Standby power: 50kW/62.5kVA
Prime power: 45kW/56.25kVA
Engine: Cummins 4BTA3.9-G2 (QC50/60E)
Alternator: Shanghai Stamford GR225E
Controller: SmartGen HGM6110N-4G-G
| Configuration Features | |
| Engine：Cummins 4BTA3.9-G2 (QC50/60E), Meet GB 20891-2014 China Stage II emission requirements | Alternator: Single bearing, IP23 protection, H class insulation. |
| 40/50°C genuine radiator with cooling fan and fan safety guard | Air filter, fuel filter, oil filter |
| Chassis and vibration absorber | Standard control panel (integrated) |
| 24V charging generator | Gas exhaust bellows, gas exhaust elbows, industrial silencers and standard parts for connections |
| Electronic Governor | Accompanying Documentation |
| Maintenance-free lead-acid batteries and battery connection cables | |
| Different voltage levels | ||||||
| Voltage (V) | Frequency (Hz) | Phase | Power factor | Current( A) | Standby power | Prime Power |
| 440/254 | 50 | 3 | 0.8 | 73.8 | 50kW/62.5kVA | 45kW/56.25kVA |
| 415/240 | 50 | 3 | 0.8 | 78.3 | 50kW/62.5kVA | 45kW/56.25kVA |
| 400/230 | 50 | 3 | 0.8 | 81.2 | 50kW/62.5kVA | 45kW/56.25kVA |
| 380/220 | 50 | 3 | 0.8 | 85.5 | 50kW/62.5kVA | 45kW/56.25kVA |
Prime power (PRP): is available for an unlimited number of annual hours in variable load application, in accordance with GB/T 2820(eqv ISO 8528); A 10% overload capacity is available for a period of 1 hour within a 12-hour period of operation.
Standby power(ESP): is the maximum power limit for emergency use and cannot be overloaded, i.e. the fuel cut-off power.
| Engine Specifications | ||
| Manufacturer & engine Model： | Cummins 4BTA3.9-G2 (QC50/60E) | |
| Air intake system: | Turbochanger& Aftercooler | |
| Fuel system： | BYC A Direct Injection | |
| 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： | 50kW / 67hp | |
| Engine maximum power： | 55kW / 74hp | |
| Governor system： | Electronic Governor | |
| Noise: | 100.3dB | |
| Exhaust system | ||
| Exhaust Gas Flow： | 9.9m³/min | |
| Exhaust Gas Temperature： | 560°C | |
| Maximum Back Pressure： | 10 kpa | |
| Air intake/ Exhaust system | ||
| Maximum Intake Air Restriction: | 6 kPa | |
| Gas Flow Rate： | 2 m3/min | |
| Exhaust Gas Flow Rate： | 136 m3/min | |
| Fuel system | ||
| Fuel Consumption @ 100% prime power | 213g/kW·h | 12.9 L/h |
| Fuel Consumption @ 75% prime power | 219g/ kW·h | 10.0 L/h |
| Fuel Consumption @ 50% prime power | 230g/ kW·h | 7.0 L/h |
| Lubrication system | ||
| Minimum Required Lube System Capacity | 11L | |
| Engine Oil Consumption rate： | ≤4g/kwh | |
| Sump Oil Capacity： | 8.9~9.5L | |
| Cooling System | ||
| Total Coolant Capacity ： | 24L | |
| Maximum Top Tank Temperature for Prime Power： | 100°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： | 50kW / 62.5kVA |
| 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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E-mail: dingbo@dieselgeneratortech.com
WhatsApp: +86 134 8102 4441
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