Model Number	4B3.9-G2
Brand Name	Cummins
Frequency	50
Output Type	AC Three Phase
Rated Power	20
Rated Voltage	400/230
Speed	1500

MAIN SPECIFICATIONS OF GENERATOR SETS          
Diesel Generator Set          
GENSET MODEL NOS.                        C20         
Manufacturer                                            Yanan         
Rated speed / frequency                            1500RPM/50Hz         
Continuous output(KW/KVA)                  20/25         
Standby output(KW/KVA)                       22/27.5         
Voltage, Phase and wire                            400V/230V, 3 Phase and 4 Wires         
Rated power factor                                   0.8(lagging)         
Dimension(L*W*H) (mm)                        1610*650*1340         
Weight(kg)                                               1050                           
Diesel Engine          
DIESEL ENGINE MODEL                     Cummins 4B3.9-G2         
Engine Characters                                     Water-cooled, 4 cylinders in line, 4-cycle, direct injection         
The engine output(KW)                             24         
Aspiration                                                 Natural inspire         
Bore(mm)*Stroke (mm)                           102*120         
Compression ration                                   16.5:1         
Fuel consumption(L/H)                             5.1(100% load)         
Displacement(Liters)                                3.9         
Exhaust air flow(m3/min)                         138.7         
Compress air flow(m3/min)                      4.13
Exhaust gas flow(m3/min)                        7.6
Exhaust highest temperature                     475 degree
Lub-oil pan capacity(L)                            9
Cooling water capacity(L)                        8
Voltage for start(V)                                 24
Instrument for adjusting speed                 Electronically
Noise level(A) 
ALTERNATOR 
ALTERNATOR MODEL                      SLG184F
Excitation                                                Brushless
Insulation class                                        H
Protection class                                       IP22
Efficiency                                                81.00%
Voltage adjust range                               1% with 4% engine governing
Steady state voltage regulation                 less than  1%
Voltage Control                                      AVR