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  • 东风康明斯4B3.9-G2  20KW柴油发电机组
  • Dongfeng Cummins 4B3.9-G2 20KW diesel generator set

Dongfeng Cummins 4B3.9-G2 20KW diesel generator set

Features

Technical parameters of Dongfeng Cummins diesel generating set

I. Technical Specifications

(1) Unit model: 20GF

Common power (KW): 20

Standby power (KW): 24

Frequency: 50Hz

Output voltage: 400 / 230V

Speed: 1500rpm

Power factor: COSΦ = 0.8 (lag)

Unit fuel consumption (g / Kw * h): 229

Rated output current (A): 36

Phases / lines: three-phase four-wire

Noise LP7m: 95db

Overall dimensions (mm): 1700 * 900 * 1400

Weight: 710Kg

(2) Diesel engine:

Brand: Dongfeng Cummins

Origin: Dongfeng Cummins Engine Co., Ltd.

Cooling method: forced water cooling cycle

Model: 4B3.9-G2

Starting method: 12V DC start

Intake method: natural aspirating

Number of cylinders: 4

Total cylinder displacement L: 3.9

Fuel supply method: direct injection

Cylinder arrangement: inline

Intercooling: water cooling

Fuel type: domestic 0 # light diesel

Speed regulation mode: electronic speed regulation

Engine oil model: WD / 40

Cylinder bore × Stroke: 102 × 120mm

Compression ratio: 16.5: 1

Lubricant capacity: 11L

Cooling capacity: 8L (engine only)

(3) Generator:

Brand: Shengfeng

Manufacturer: Yangzhou Shengfeng Power Generation Equipment Factory

Place of Origin: Yangzhou

Model: GF-20

Material: pure copper

Insulation class: H

Voltage control method: AVR

Voltage: ≤4%

Rated voltage (V): 400/230

Protection level: IP23

Frequency: 50Hz

Number of phases / connection: three-phase four-wire / Y-type winding

Frequency adjustment rate (%): ≤ ± 0.5 (steady state) + 10 ~ -7 (transient state)

Voltage adjustment rate (%): ≤ ± 0.5 (steady state) + 20 ~ -15 (transient state)

Frequency fluctuation rate (%): ≤ ± 0.5

Voltage fluctuation rate (%): ≤ ± 0.5

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