General Features:

Engine(DCEC Cummins 4BT3.9-G1 )

Radiator 50OC max, fans are driven by

belt, with safety guard

24V charge alternator

Alternator: single bearing alternator IP23,

insulation class H/H

Absorber

Dry type air filter, fuel filter, oil filter

Main line circuit breaker

Standard control panel

Two12V batteries, rack and cable

Ripple flex exhaust pipe, exhaust siphon, flange, muffler

User manual

Engine Data

Manufacturer / Model: DCEC Cummins 4BT3.9-G1 , 4-cycle

Air Intake System: Turbo,

Fuel System: A type fuel pump

Cylinder Arrangement: 4 in line

Displacement: 3.9L

Bore and Stroke: 102*120(mm)

Compression Ratio: 16.5:1

Rated RPM: 1500rpm

Max. Standby Power at Rated RPM: 40KW/54.4HP

Governor Type: RSV Mechanical(Std) / Electronic (Optional)

Exhaust System

Exhaust Gas Flow: 6.48m3/min

Exhaust Temperature: 487℃

Max Back Pressure: 10kPa

Air Intake System

Max Intake Restriction: 6.35kPa

Burning Capacity: 2.69m3/min

Air Flow: 146m3/min

Fuel System

100%( Prime Power) Load: 214 g/Kw.h

75%(Prime Power) Load: 223 g/Kw.h

50%(Prime Power) Load:: 244 g/Kw.h

100%( Prime Power) Load: 8.7L/h

Oil System

Total Oil Capacity: 11L

Oil Consumption: ≤4g/kwh

Engine Oil Tank Capacity: 9.5L

Oil Pressure at Rated RPM: 345kPa

Cooling System

Total Coolant Capacity: 21L

Thermostat: 82-95℃

Max Water Temperature: 104℃

Alternator Specification

GENERAL DATA

Compliance with GB755, BS5000, VDE0530, NEMAMG1-22, IED34-1, CSA22.2 and AS1359 standards.

Alternator Data

Number of Phase: 3

Connecting Type: 3 Phase and 4 Wires, “Y” type connecting

Number of Bearing: 1

Power Factor: 0.8

Protection Grade: IP23

Altitude: ≤1000m

Exciter Type: Brushless, self-exciting

Insulation Class, Temperature Rise: H/H

Telephone Influence Factor (TIF): ＜50

THF: ＜2%

Voltage Regulation, Steady State: ≤±1%

Alternator Capacity: 37.5KVA

Alternator Efficiencies: 86.6%

Air Cooling Flow: 0.15m3/s

Generating set data:

Voltage Regulation: ≥±5%

Voltage Regulation, Stead State: ≤±1%

Sudden Voltage Warp (100% Sudden Reduce): ≤+25%

Sudden Voltage Warp (Sudden Increase): ≤-20%

Voltage Stable Time (100% Sudden Reduce): ≤6S

Voltage Stable Time (Sudden Increase) ≤6S

Frequency Regulation, Stead State: ≤5%

Frequency Waving: ≤1.5%

Sudden Frequency Warp (100% Sudden Reduce): ≤+12%

Sudden Frequency Warp (Sudden Increase): ≤-10%

Frequency Recovery Time (100% Sudden Reduce): ≤5S

Frequency Recovery Time (Sudden Increase): ≤5S

Options

Competitive Advantage:

High Performance of loading       Easy start
Nice protection              User-friendly operation
Low running cost           Environmental            Long service life