Product Description

Cummins on-highway diesel generator sets are engineered, manufactured, and tested to Cummins' global standards, offering customers a reliable and integrated power system solution with exceptional performance under normal load, backup, and continuous operation.

➊ CompliantISO 8528-2005 and GB/T 2820-2009 Standard for "AC Generating Sets Driven by Reciprocating Internal Combustion Engines"

➋ Design and manufacturing of the generators have both passedISO 9001 or ISO 9002 Certification.

➌ Cummins offers1-year or 1000 operating hours quality guarantee, covering full warranty for the generator set, including the engine, generator, and control system.

➍ A nationwide professional service network serving customers24/7 after-sales service and technical support.

Performance Features

■ Cylinder bodyManufactured from high-strength alloy cast iron, featuring excellent rigidity, low vibration, and minimal noise.

■ Cylinder HeadEach cylinder features a four-valve design, optimized air intakeFuel mixture ratio, effectively improves combustion and emissions; one cover per cylinder, easy for maintenance.

■ CrankshaftSingle camshaft, precision machined Accurately control the valve and fuel injection timing; the cam profile reduces impact force, enhancing reliability and durability.

■ CrankshaftA solid crankshaft made of high-strength forged steel, with induction hardening on the rounded corners and shaft journals, ensures higher fatigue strength.

■ PistonUtilizing advanced aluminum alloy casting technology,The omega-shaped head and bucket skirt design compensates for thermal expansion and contraction, ensuring a good fit.

Environmental Requirements

Elevation(m)：≤1000

Fuel Standard:0# Light Diesel Fuel

Atmospheric pressure(kPa)：≥89.9

Oil Standard:CF/15W-40

Intake Temperature(℃)：≤40

Water QualitypH: 6.5-8

Relative Humidity:≤60%

Mold Growth Level on Surface: ≤GB/T2423.16/Grade 2

Seismic Resistance: Horizontal Acceleration0.2g vertical acceleration, 0.1g

Generator set specifications

Model: Open Shelves

Model:C728GF

Standby Power(KW)：800

Common Power(KW)：720

Engine size(mm)：4100x1760x2400

Engineered weight(kg)：7200

RPM(r/min)：1500

Fuel Consumptiong/kw.h)：209

Frequency(HZ)：50

Transient Voltage Regulation Ratio:≤-15%/+20%

Steady-state voltage regulation rate:≤±1%

Voltage Stabilization Duration:≤3sec

Voltage fluctuation rate:≤0.5%

Voltage waveform distortion:≤8%

Steady-state frequency adjustment rate:≤5%

Transient Frequency Adjustment Rate≤-10%/+12%

Frequency Stability Time:3sec

Frequency Volatility:≤1.5%

Engine specifications

Diesel Engine Brand:Cummins/Case New Holland

Manufacturer:Chongqing Cummins Engine Co., Ltd. (CCEC)

Diesel Engine Model:KTA38-G2A

Standby Power(KW)：895

Output Power(KW)：813

Number of cylindersArrangement: 12 cylinders/V-type

Compression Ratio:14.5:1

Bore diameter*行程 (mm): 159*159

DisplacementL)：37.8

Oil Pressurepsi)：45～65

Oil Temperature℃)：≤121

Oil capacity(L):135

Cooling Water Capacity(L)：263

Fuel System:PT Pump Direct Injection

Cooling Method: Closed-loop Water Cooling

Startup Method:DC24V Electric Start

Speed Control: Electronic Speed Control

Air Intake Method: Turbocharged, Intercooled

Type: Four-stroke60°

Constant Load Steady-State Variability±0.25%

Power Deviation:≦±5%

Generator specifications

Generator Brand:Stamford

Manufacturer: Cummins Generator Technologies (China) Co., Ltd.

Generator Model: HCI634H 

Rated Capacity: 728KW

Voltage:400V/230V

Form: Brushless, Single-bearing, Rotating Magnetic Field

Excitation System: Self-excitation, Automatic Voltage Regulation

Winding structure:2/3 pitch

Three-phase four-wire

Insulation Grade:Grade H

Power Factor:COSΦ = 0.8 lag

Phone Interference Coefficient:TIF：<50

Wiring:Y-connection

Telephone Harmonic Coefficient:THF：<2%

Ingress Protection Rating:IP23

Radio Frequency Interference: CompliantBS800 and VDE Class G, N

Meets Standards:GB 755, BS 5000 Part 3, VDE 0530, NEMA MG1-22, IEC 34, GSA C22-100, AS 1359

Standard Configuration

Engine Parts: Engine, Diesel Filter, Air Filter, Oil Filter, Charger, Starter Motor.

Generator section: Generator, circuit breaker.

Control System:LCD Liquid Crystal Display Controller, Electronic Speed Controller.

Other Parts: Water Tank Radiator, Steel Base, Vibration Dampers.

Appendix: Muffler, battery, battery cable, engine oil, vibration dampers.

Standard of Implementation

Military Specification  GJB 5785-2006

National Standards  GB/T 2820-2002

Communication Standards  YD/T 502-2007

Industry Standards      JB/T 10303－2001

Environmental CertificationNoise and Vibration Class A/Exhaust Emission Class A

Talyr Quality Certification  YD/T502-2007*