| Unit type data | |||||||||||||||
| Fuel type | Natural gas | ||||||||||||||
| Equipment type | 520NG/520NGS | ||||||||||||||
| Assembly | Power supply + Heat Dissipation System+ Control cabinet | ||||||||||||||
| Genset compliance with standard | ISO3046,ISO8528,GB2820, CE,CSA,UL,CUL | ||||||||||||||
| Continuous output | |||||||||||||||
| power modulation | 50% | 75% | 100% | ||||||||||||
| Electrical output | kW | 260 718 | 390 1039 | 520 1337 | |||||||||||
| Fuel use | kW | ||||||||||||||
| Efficiency in mains parallel mode | |||||||||||||||
| Continuous output | 50% | 75% | 100% | ||||||||||||
| Electrical efficiency % | 38.5 | 38.9 | 38.8 | ||||||||||||
| Current(A)/ 400V / F=0.8 | 469 | 703 | 938 | ||||||||||||
| Prime power Operating Data Insolated Mode | ||||||||
| Synchronous alternator | Star, 3P4h | |||||||
| Frequency | Hz | 50 | ||||||
| Power factor | 0.8 | |||||||
| Rating (F) KVA prime power | KVA | 650 | ||||||
| Generator voltage | V | 400 | ||||||
| Current | A | 938 | ||||||
| Genset performance data and manufacturing technology | ||||||||
| Overload run-time at 1.1xSe(hour) | 1 | Telephone interference factor (TIF) | ≤50 | |||||
| Voltage setting range | ≥±5% | Telephone harmonious factor (THF) | ≤2%,as perBS4999 | |||||
| Steady-state voltage deviation | ≤±2% | Manufacturing technology 
 
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| Transient-state voltage deviation | -12%~18% | |||||||
| Voltage recovery time (s) | ≤2 | |||||||
| Voltage unbalance | 1% | |||||||
| Steady-state frequency regulation | ±1.5% | |||||||
| Transient -state frequency regulation | -15%~10% | |||||||
| Frequency recovery time (s) | ≤5 | |||||||
| Steady-state frequency band | 1.5% | |||||||
| Recovery time response (s) | 0.5 | |||||||
| Line Voltage Waveform Sine Distortion Ratio | ≤ 5% | |||||||
| Emission data[1] | ||||||||
| Exhaust flow rate | 2520 kg/h | |||||||
| Exhaust temperature | 465℃ | |||||||
| Maximum allowable exhaust back pressure | 4 Kpa | |||||||
| Emission: (Option) NOx: | ≤500 mg/Nm³ at 5% residual oxygen | |||||||
| CO | ≤650 mg/ Nm³ at 5% residual oxygen | |||||||
| NMHC | ≤125 mg/ Nm³ at 5% residual oxygen | |||||||
| H2S | ≤20 mg/ Nm3 | |||||||
| Environmental noise | ||||||||
| Sound pressure level at a distance of up to 7 m(based on surroundings) | 98dB (A) / Open Type 85dB (A) / Silent Type | |||||||
| AC alternator performance data Efficient gas engine | |||
| Alternator brand | MECC ALTE | Engine brand | MAN | 
| Motor type | ECO40-2L/4A | Engine model | E 3262 LE202 | 
| Voltage(V) | 400 | Engine type | V-12 cylinders , turbocharger with intercooler | 
| Rating (H) KW prime power | 544 | Bore x stroke | 132mm×157mm | 
| Rating (H) KVA prime power | 680 | Displacement (L) | 25.8 | 
| Alternator efficiency (%) | 95 | Compression ratio | 12:1 | 
| Power factor | 0.8 | Rated output power | 550kW/1500rpm | 
| Wiring connection | D/Y | Oil consumption max. | 0.35 g/ kw * h | 
| Rotor insulation class | H class | Min Intake flow, (kg/h) | 2400 | 
| Temperature-rise rating | F class | Ignition method | Electrically controlled single cylinder independent high-energy ignition | 
| Excitation method | Brush-less | Fuel control mode | Equivalent combustion, closed loop control | 
| Rated speed(min-1) | 1500 | Speed regulation mode | Electronic governor | 
| Housing protection | IP23 | 
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| Main functions | |||||
| Engine running timeAlarm Protection Function 
 
 | 12V or 24V DC StartingRemote Control Interface as an optionAutomatic Start/Stop Control SwitchSet Input, Output, Alarm and TimeNumbers Control Input, Relays Control OutputAutomatic failure state emergency stop and fault display battery voltage genset frequencyProtection with IP44Gas leaking detection | ||||
| Standard configuration | |||||
| Engine Control: Lambda closed loop controlIgnition systemElectronic governor actuatorStart up control speed control load control | Generator Control:Power control RPM control (synchronous) Load distribution (island mode) Voltage control | Voltage tracking (synchronous) Voltage control (island mode)Reactive power distribution(island mode) | Other controls: Oil filling automaticallyIntake Valve controlFan control | ||
| Early warning monitoring | |||||
| battery voltageAlternator data:U、I、Hz、kW、 kVA、kVAr、PF、kWh、kVAhGenset frequency | Engine SpeedEngine running timeInlet pressure temperatureOil pressure | Coolant temperatureMeasurement of oxygen content in exhaust gasIgnition status inspection | Coolant temperatureFuel gas inlet pressure | ||
| Protection functions | |||||
| Engine protection Low oil pressureSpeed protectionOver speed/short speedStarting failureSpeed signal lost | Alternator protection 
 | Busbar/mains protection 
 | System protection Alarm Protection FunctionHigh coolant temperatureCharge faultEmergency Stop | ||
| Paints, Dimensions and Weights of the Genset—520NG | |
| Genset size (length * width * height) mm | 4800×1800×2100 | 
| Genset dry weight(Open Type) kg | 5500 | 
| Spraying Process | High quality powder coating(RAL 9016 & RAL 5017 & RAL 9017 ) | 
| Paints, Dimensions and Weights of the Genset—520NGS | |
| Genset size (length * width * height) mm | 6058×2438×2896(Container) | 
| Genset dry weight(Silent Type) kg | 11500(Container) | 
| Spraying Process | High quality powder coating(RAL 9016 & RAL 5017 & RAL 9017 ) |