50Hz Cummins 4BTA3.9-G11 64kW/80kVA Diesel Generator Set

50Hz Cummins  64kW/80kVA  Diesel Generator Set

1. Technical Parameter

2. Core Product Features

The Cummins 4BTA3.9-G11 64kW/80kVA diesel generator set is an upgraded high-performance turbocharged power generation equipment of Dongfeng Cummins classic B-series platform. Adopting turbocharged and after-cooled air intake technology and electronic speed regulation system, this model optimizes power output stability and load response efficiency compared with conventional G2 models. As a mainstream 80kVA industrial turbocharged diesel generator in the medium-power market, it is widely applied in industrial standby, engineering power supply, commercial emergency backup and off-grid power generation scenarios, with outstanding reliability and cost performance recognized by engineering users.

2.1 Turbocharged After-cooled Design, Strong and Stable Power Output

Equipped with genuine 4BTA3.9-G11 four-cylinder in-line water-cooled turbocharged after-cooled engine, the unit adopts professional air intake cooling technology to effectively reduce intake air temperature, improve combustion efficiency and power density. The optimized electronic governor replaces the traditional mechanical governor, achieving faster load response and more precise speed regulation. The rated prime power reaches 64kW/80kVA, and the standby emergency power is upgraded to 68kW/85kVA, with sufficient power reserve to cope with short-term peak load impact and long-term variable load operation. Matched with full-copper brushless self-excited alternator, equipped with H-grade ultra-high temperature resistant insulation and IP23 dust-proof and splash-proof protection, the unit maintains ultra-low voltage and frequency fluctuation under complex working conditions. The built-in high-precision AVR automatic voltage regulation system ensures stable 50Hz standard power output, supporting 24-hour continuous uninterrupted operation and frequent start-stop switching.

2.2 Optimized Fuel System, Stable and Controllable Energy Consumption

This G11 upgraded model is equipped with North Oil PB professional fuel pump and electronic fuel supply control system, realizing uniform diesel atomization and sufficient combustion, effectively reducing invalid fuel loss. The full-load fuel consumption is stably controlled at 17.6L/H, with more stable fuel consumption performance than ordinary mechanical governor models. For industrial enterprises and engineering projects that require long-term standby power and intermittent off-grid power generation, the standardized fuel consumption design avoids sudden fuel consumption surge caused by load changes. As a practical64kW industrial backup diesel generator, it balances power performance and operating cost, bringing stable economic benefits for long-term operation.

2.3 Brushless Maintenance-free Structure, Low Failure Rate and Long Service Life

The whole machine adopts mature brushless self-excited power generation structure, eliminating vulnerable parts such as carbon brushes and slip rings in traditional generators, fundamentally reducing mechanical wear and daily maintenance frequency. The H-grade high-strength insulation material resists high-temperature aging, moisture erosion and electrical breakdown, greatly extending the service life of alternator windings. The IP23 professional protection grade can isolate daily dust accumulation, debris invasion and light rain splash, adapting to indoor generator room fixed installation and outdoor awning temporary placement. The Cummins integrated heavy-duty cylinder block and forged steel crankshaft design improves overall structural rigidity, with strong pressure resistance and durable operation, effectively reducing later maintenance time and labor costs.

2.4 Complete Intelligent Protection, Strong Environmental Adaptability

This turbocharged Cummins 80kVA emergency generator set is equipped with a full set of intelligent safety protection functions, including low oil pressure alarm shutdown, high water temperature overheat protection, overload protection, overvoltage and undervoltage protection, and overspeed automatic protection. Once abnormal working conditions occur, the unit will automatically alarm and cut off power supply to avoid equipment burnout and safety accidents. The standard 24V DC electric start system has a high one-time start-up success rate, supporting manual operation and automatic mains linkage switching. The optimized circulating water cooling system ensures stable heat dissipation in high-temperature environments, and complies with Euro 2 and China Stage II emission standards, with low exhaust emissions, meeting the safety and environmental protection requirements of industrial parks, commercial zones and outdoor engineering projects.

3. Main Application Scenarios

With sufficient power reserve, sensitive load response and stable operation performance, the Cummins 4BTA3.9-G11 64kW/80kVA diesel generator set covers medium and small industrial production, commercial complex supporting, outdoor field engineering, large-scale agricultural breeding and public facility emergency fields. It is a universal reliable power supply equipment suitable for 80kVA factory emergency standby power and off-grid engineering long-term power generation.

3.1 Medium and Small Industrial Manufacturing Enterprises

It is the preferred standby power equipment for mechanical processing factories, packaging plants, food processing factories, plastic products factories and hardware manufacturing workshops. Industrial production has high requirements for power supply continuity and stability. Sudden mains power failure, seasonal power rationing or grid maintenance power cuts will directly cause production line shutdown and economic losses. This 64kW turbocharged generator has strong load capacity and fast response speed, which can quickly take over power supply to ensure the normal operation of production equipment, workshop ventilation systems, water supply and drainage equipment and on-site monitoring systems, effectively avoiding production interruption losses.

3.2 Commercial Complex & Property Supporting Projects

Suitable for large shopping malls, supermarket chains, office buildings, hotel resorts, catering complexes and high-end residential communities. These commercial and residential scenarios have dense electrical equipment and diversified power consumption demands. In peak power consumption periods and sudden power outage emergencies, the unit can automatically start and switch power supply, ensuring the normal operation of lighting, central air conditioning, office equipment, elevator emergency power supply and fire linkage systems, maintaining uninterrupted commercial services and stable community property operation.

3.3 Outdoor Field Engineering & Temporary Construction

For municipal road construction, bridge engineering, water conservancy projects, railway auxiliary construction, communication base station maintenance and field exploration without mains power coverage, this mobile turbocharged diesel generator set serves as the main power supply equipment. It features stable power output, strong anti-interference ability and convenient transportation and hoisting, which can meet the long-term continuous power demand of medium-sized construction machinery, field office equipment and on-site monitoring devices, solving the power supply blank of outdoor off-grid operation.

3.4 Large-scale Agricultural Breeding & Processing Bases

It is widely used in large livestock and poultry breeding farms, aquatic breeding bases and agricultural product deep processing factories. Rural and suburban power grids are prone to voltage fluctuation and frequent power outages in peak seasons. The unit can be used as daily standby and main power supply to ensure the continuous operation of breeding constant temperature equipment, ventilation systems, water supply and aeration equipment, and agricultural processing machinery, avoiding livestock and aquatic product death and material waste caused by sudden power failure.

3.5 Public Facility Emergency Backup Scenarios

It can be used as emergency backup power for township hospitals, community health centers, schools, fire rescue stations and environmental monitoring stations. In sudden power outage emergencies, the unit can respond quickly to provide stable power support for medical rescue equipment, teaching equipment, fire alarm systems and environmental monitoring equipment, ensuring the normal operation of public basic facilities and guaranteeing regional public service safety and emergency response capacity.

4. Core Product Purpose

Positioned as a high-response turbocharged Cummins medium-power diesel generator, the 4BTA3.9-G11 model focuses on solving medium-load continuous power supply and emergency power guarantee demands in multiple scenarios, with core purposes covering industrial emergency backup, off-grid main power supply, power grid peak regulation and public safety power guarantee, featuring high practicability and wide scene compatibility.

Firstly, it provides industrial and commercial sudden power failure emergency backup power supply. It is mainly used to respond to unplanned power outages, seasonal power rationing and grid maintenance power cuts in industrial parks and commercial areas, quickly take over power supply, avoid enterprise production shutdown and commercial service interruption, and provide reliable power safety guarantee for daily operation of enterprises.

Secondly, it acts as long-term prime power for off-grid and weak power grid areas. For remote rural areas, field operation bases, mountain engineering projects and areas with unstable grid voltage, the unit can operate continuously as the main power generation equipment, stably output 50Hz standard voltage, and meet the daily production, processing and living power demand of users.

Thirdly, it undertakes power grid peak shaving and auxiliary power supply. In summer and winter peak power consumption periods and regional power tension stages, the generator set can be started for auxiliary power supply to make up for the insufficient capacity of the mains power grid, effectively preventing equipment overload shutdown and production delay caused by power shortage.

Finally, it provides special industry safety emergency power guarantee. It supports uninterrupted emergency power supply for fire control systems, building elevators, medical emergency devices, environmental monitoring equipment and security monitoring systems in various scenarios, meeting the safety operation specifications of construction, medical, environmental protection and breeding industries.

5. Common FAQ

Q1: What is the difference between prime power and standby power of Cummins 4BTA3.9-G11 generator in actual use?

The 64kW/80kVA prime power is the continuous power allowed for long-term uninterrupted operation of the unit, which is suitable for daily off-grid main power supply and long-term industrial standby scenarios. The 68kW/85kVA standby power is short-term emergency peak power, only allowed for 1-hour overload operation within 12 hours, and long-term operation under standby load is prohibited. In actual engineering use, it is recommended to control the long-term operating load within 80% of prime power, which can effectively reduce equipment wear, stabilize fuel consumption and prolong the service life of the 80kVA turbocharged diesel generator set.

Q2: What are the advantages of 4BTA3.9-G11 model compared with ordinary G-series generators?

The 4BTA3.9-G11 is an upgraded version of Cummins B-series power generation engines, adopting turbocharged after-cooled intake technology and electronic governor matching North Oil PB fuel pump. Compared with conventional mechanical governor models, it has more sensitive load response, more stable speed regulation and lower frequency fluctuation. The optimized combustion structure improves power output efficiency and power reserve, showing better adaptability in high-temperature and high-load continuous operation scenarios. Meanwhile, the integrated lightweight structure reduces failure points, making daily operation more stable and maintenance more convenient.

Q3: What working environments and installation conditions does IP23 4BTA3.9-G11 genset adapt to?

With IP23 dust-proof and splash-proof protection grade and H-grade high-temperature resistant insulation, this industrial generator has excellent environmental adaptability, working stably in the temperature range of -20℃ to +45℃. It is suitable for fixed indoor installation in factory generator rooms, commercial equipment rooms and property machine rooms. It can also be placed outdoors with standard rainproof and dustproof awnings for temporary construction power supply. The IP23 structure can resist daily dust accumulation and light rain erosion, fully adapting to open working conditions such as construction sites and breeding farms. During installation, it is necessary to reserve sufficient heat dissipation space to avoid high-temperature alarm, and avoid long-term immersion in heavy rain and corrosive gas environments to ensure long-term stable operation.