



GRAND DECHO GDD-500GFK diesel generator sets, relying on many years of market experience, integration of advanced technology at home and abroad, and through rigorous development and verification, to ensure the unit's high reliability, high efficiency, environmental protection and low maintenance costs. The unit adopts mature control system, which can meet the individual power needs of different users.
Generator Set Parameters
Rated Power 500kW/625kVA
Rated Voltage 400V
Rated Current 902A
Frequency 50Hz
Power Factor -0.8
Electrical Efficiency .≥33.2%
Fuel Consumption ≤143 L/kW.h
Noise ≤110dB(A)@1m
Starting Method Electric
Weight 4391kg
Engine Parameter
Engine Model YC6TD840-D31
Type ..........................Vertical,Six-cylinder,Four-stroke,Water-cooled,
Direct injection,Electric starter
Type of Inlet Pressurised, air-to-air intercooling
Bore×Stroke (mm×mm) 6-152×180
Displacement(L) 19.6
Compression Ratio 14 : 1
Max.Output(kW/rpm) 615 / 1500
Rated Output(kW/rpm) 561 / 1500
Fuel Consumption(g/kW/h) ≤213
Oil Consumption(g/kW/h) ≤0.561
Speed Control Mode Electric
Oil Capacity(L) 56
Overhaul Time(h) >1000
Inlet Exhaust Parameters
-Clean air filter 3.5 kPa
-Dirty air filter 5 kPa
-Intake Resistance Alarm Values 6.2 kPa
-Air Filter Form Dry Paper Cartridge
Max.Exhaust Back Pressure 10 kPa
Exhaust Port Inner Diameter Φ 168mm
Generator Parameters
Generator Model Evotec TCU368D
Wiring Method.................................Three-phase Four-wire (Y type)
Voltage Regulating Mode AVR
Heat Balance Parameters
Total Fuel Chemical Energy (kW) 1622,1419
Output Power (Gross) (kW) 616,561
Output Power (Net) (kW) 594,539
Fan Power Consumption (kW) 20 ,20
Other Power Losses (kW) 2 ,2
Coolant Heat Dissipation (kW) 372,328
Intake Intercooler Heat Sink (kW) 165,151
Exhaust Air Heat Dissipation (kW) 426 ,345
Heat Radiation (kW) 43 ,34
Cooling Parameters
Total Coolant Capacity 130.5 L
Engine Coolant Capacity 47 L
Radiator Coolant Capacity 76.5 L
Line Coolant Capacity 7 L
Maxengine Water Temperature 97℃
Thermostat Operating Temperature
Nitial Opening Temperature(75±2)℃,Opening Temperature<85℃
-Standby Power 8.0℃
-Prime Power 7.0℃
Test Conditions
Ambient Temperature 25 ℃
Atmospheric Pressure 100 kPa
Relative Humidity 30 %
Intake Resistance At Maximum Operating Conditions ≤5 kPa
Exhaust back Pressure Limits ≤10 kPa
Fuel Temperature (feed pump) 38±2 ℃

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