dingbo@dieselgeneratortech.com
+86 134 8102 4441
Jul. 19, 2025
Technical data of 400KW 500kVA Cummins Diesel Generator Set
Genset Model: DB-400GF
Rated power:400KW/500kVA
Standby power:440kW/550kVA
Engine: Cummins QSZ13-G3
Alternator: Shanghai Stamford GR355D
Controller: SmartGen HGM6110N-4G-G

| Configuration Features of 500kVA Cummins generator set | |
| Engine: Cummins QSZ13-G3, meet GB 20891-2014 China Stage II emission requirements | Alternator: Single bearing, IP23 protection, H class insulation. | 
| 50℃ original water radiator, cooling fan, with fan safety cover | 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 | 656 | 440kW/550kVA | 400KW/500kVA | 
| 415/240 | 50 | 3 | 0.8 | 695 | 440kW/550kVA | 400KW/500kVA | 
| 400/230 | 50 | 3 | 0.8 | 720 | 440kW/550kVA | 400KW/500kVA | 
| 380/220 | 50 | 3 | 0.8 | 759 | 440kW/550kVA | 400KW/500kVA | 
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 QSZ13-G3 | |
| Air intake system: | Turbocharged & Charge air cooled | |
| Fuel system: | HPCR | |
| Cylinders no. & Type: | 6 Cylinders, in line | |
| Displacement: | 13.0L | |
| Bore x Stroke: | 130×163mm | |
| Compression Ratio: | 17:1 | |
| Engine Speed: | 1500rpm | |
| Engine minimum power: | 450kW/603hp | |
| Engine maximum power: | 470kW/629hp | |
| Governor system: | Electronic Governor | |
| Noise: | 102.3dB | |
| Exhaust system | ||
| Exhaust Gas Flow: | 81.8m³/min | |
| Exhaust Gas Temperature: | 530°C | |
| Maximum Back Pressure: | 13kpa | |
| Air intake/ Exhaust system | ||
| Maximum Intake Air Restriction: | 6.2kPa | |
| Inlet Air Flow: | 30.7m³/min | |
| Exhaust air rate: | 588m³/min | |
| Fuel system | ||
| Fuel Consumption @ 100%prime power | 193g/kW•h | 101.0L/h | 
| Fuel Consumption @ 75%prime power | 189g/ kW•h | 74.2L/h | 
| Fuel Consumption @ 50%prime power | 187g/ kW•h | 48.9L/h | 
| Lubrication system | ||
| Minimum Required Lube System Capacity: | 46L | |
| Oil Capacity with Oil Pan: | 42.3~45.1L | |
| Cooling System | ||
| Coolant Capacity: | 64L | |
| Maximum Top Tank Temperature for Prime Power: | 104°C | |
| Alternator Specifications | |
| Meet BS5000, VDE0530, NEMAMG1-22, 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 | 
| Protection: | IP23 | 
| Altitude requirements: | ≤1000m | 
| Exciter type: | Brushless Self-Excited | 
| Insulation/temperature rise class: | H/H | 
| Waveform TIF: | <50 | 
| Waveform THF: | <2% | 
| Rated Power/Capacity: | 400KW/500kVA | 
| 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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