60Hz Cummins 6LTAA9.5-G3 228kW/285kVA Diesel Generator Set

60Hz Cummins 228kW/285kVA Diesel Generator Set
1. Technical Parameter
Parameter Category | Specific Item | Technical Data |
Overall Genset Parameters | Genset Model | 6LTAA9.5-G3 |
Prime Power (kW/kVA) | 228kW/285kVA | |
Standby Power (kW/kVA) | 252kW/315kVA | |
Rated Frequency | 60Hz | |
Rated Speed | 1800rpm | |
Rated Power Factor | 0.8 Lagging | |
Fuel Consumption (100% Full Load) | 65L/H | |
Diesel Engine Parameters | Engine Brand & Manufacturer | Genuine Cummins / Dongfeng Cummins (DCEC) |
Engine Model | 6LTAA9.5-G3 | |
Engine Type | 6-cylinder In-line, 4-stroke Industrial Diesel Engine | |
Air Intake System | Turbocharged & After-cooled | |
Bore × Stroke | 116mm × 148mm | |
Total Displacement | 9.5L | |
Compression Ratio | 16.6:1 | |
Fuel Supply System | High-precision Mechanical Fuel Injection Pump | |
Governor Type | Electronic Governor | |
Starting System | 24VDC Electric Start | |
Cooling Mode | Water-cooled Integrated Radiator | |
Alternator Parameters | Excitation Type | Brushless, Self-excited |
Insulation Grade | H Class | |
Protection Grade | IP23 | |
Voltage Regulation Mode | Automatic AVR Constant Voltage Regulation | |
Winding Material | 100% Pure Copper Winding | |
Operation & Industry Standard | Control System | Intelligent Electronic Monitoring Module |
Applicable Ambient Temperature | -20℃ ~ +50℃ | |
Executive Industry Standard | NFPA 110 Level 1 Industrial Power Standard |
2. Core Product Features
The 60Hz Cummins 6LTAA9.5-G3 228kW/285kVA diesel generator set is a new upgraded medium-large power industrial genset based on Cummins mature 9.5L large-displacement engine technology. Optimized and calibrated for global 60Hz power grid operating conditions, this G3 version unit upgrades fuel injection logic and power response performance, featuring stronger power reserve, faster transient load pickup and more stable continuous operation. As a hot-selling 285kVA Cummins diesel generator set in the industrial power market, it is widely recognized for high power density, excellent environmental adaptability and low long-term failure rate, perfectly matching medium and high-load power supply demands of industrial and commercial projects.
Powered by authentic Dongfeng Cummins 6LTAA9.5-G3 industrial engine, the unit adopts a rugged 6-cylinder in-line 4-stroke structure and professional turbocharged after-cooled air intake design. The 9.5L large displacement and 16.6:1 optimized compression ratio realize full fuel atomization and efficient combustion, effectively improving power conversion efficiency and output stability. Equipped with an electronic governor and high-precision mechanical fuel injection pump, the engine delivers sensitive load response, which can quickly adapt to sudden load increases and fluctuations in industrial production. Different from small-displacement gensets, this large-displacement power unit maintains stable 228kW prime power output without power attenuation even during long-term full-load operation, fully adapting to high-intensity uninterrupted power supply working conditions.
Matched with high-performance brushless self-excited alternator, this 285kVA industrial generator set abandons traditional carbon brush and slip ring vulnerable structures. The brushless excitation design eliminates common faults such as carbon brush wear, poor contact and spark ignition, greatly reducing daily maintenance frequency and operational failure risks. With H-class ultra-high temperature resistant insulation materials and IP23 dustproof and rainproof protection grade, the alternator can resist harsh environments including high temperature, humidity, dust and outdoor wind erosion. The full pure copper winding ensures low heat generation, strong conductivity and durable operation, cooperating with intelligent AVR automatic voltage regulation system to control voltage and frequency fluctuation within ultra-small ranges, providing high-quality clean power for precision industrial equipment and commercial electrical systems.
In terms of intelligent safety protection, the genset is equipped with a dedicated electronic monitoring module, integrating real-time operating data display, one-key start-stop, remote linkage control and automatic fault diagnosis functions. It supports comprehensive safety protection mechanisms including over-speed, over-voltage, under-voltage, over-current, low oil pressure, high water temperature and overload automatic shutdown. Once abnormal operating parameters occur, the system will trigger real-time alarm and emergency protection shutdown to avoid equipment burnout and operational safety accidents. The factory-matched integrated water cooling system has efficient heat dissipation performance, ensuring stable long-term operation of the unit in high-temperature working environments without overheating failure.
In terms of practical economy and durability, the upgraded engine calibration technology controls the 100% full-load fuel consumption at 65L/H, achieving a balanced performance of high power output and controllable operating cost. The cast iron cylinder block structure is sturdy and vibration-resistant, adapting to complex on-site construction and industrial working conditions. The whole machine adopts standardized serialized accessories, with a complete global Cummins after-sales service network and convenient spare parts replacement. Compared with same-power competitive products, this 228kW Cummins diesel generator set has longer service life and lower comprehensive operation and maintenance costs, with outstanding cost performance in medium-large power genset products.
3. Main Application Scenarios
This Cummins 6LTAA9.5-G3 285kVA 60Hz diesel generator set has excellent load adaptability and stable power output capacity. It can flexibly serve as long-term prime power supply and emergency standby power supply, covering industrial manufacturing, commercial infrastructure, field engineering construction, public utilities and off-grid power supply fields, and is suitable for all medium and high-load scenarios requiring high-reliability power guarantee.
Medium & Large Industrial Manufacturing Scenarios: The stable 228kW prime power makes it the preferred power supply equipment for mechanical processing plants, chemical production bases, building materials factories, textile enterprises and medium-sized industrial parks. Industrial production scenarios have large power consumption and strict requirements for power supply continuity. This genset can act as the main power generation equipment in power-deficient industrial zones to support 24-hour stable operation of production lines, mechanical transmission equipment and supporting electrical facilities. It can also serve as core emergency backup power to prevent production shutdown, equipment damage and economic losses caused by sudden municipal power failure or grid fluctuation.
Commercial & Public Infrastructure Scenarios: Relying on 252kW/315kVA sufficient standby power reserve, the unit is widely applied in high-rise office buildings, large shopping malls, star hotels, municipal general hospitals, campus facilities and comprehensive stadiums. Public service scenarios have zero tolerance for power interruption. In case of power grid maintenance, line failure or sudden blackout, the genset can start quickly and complete automatic power switching in a short time, ensuring the normal operation of fire protection linkage systems, elevator equipment, medical rescue instruments, security monitoring systems and public lighting, effectively avoiding public safety risks and operational paralysis.
Field Engineering & Outdoor Construction Scenarios: It is an essential temporary power supply device for road and bridge engineering, municipal infrastructure renovation, oil field exploitation, open-pit mine operation and remote field construction projects. Most outdoor construction sites are far away from urban power grids and lack stable municipal power support. The 6LTAA9.5-G3 genset features strong environmental adaptability and anti-interference ability, which can operate stably in high temperature, low temperature, dusty and windy complex environments, fully meeting the power demand of large construction machinery, welding equipment, engineering detection tools and on-site staff living electricity.
Off-grid & Unattended Special Scenarios: The unit is widely used in remote mountainous areas, islands, pastoral areas and other off-grid power shortage areas, as well as unattended scenarios such as communication base stations, rural water pump stations, environmental automatic monitoring stations and power transmission facilities. The upgraded G3 engine has excellent low-temperature start-up performance and extreme environment resistance, realizing long-term stable independent power supply and solving the persistent power supply dilemma of remote areas and unattended equipment.
4. Core Product Purpose
The core purpose of the Cummins 6LTAA9.5-G3 228kW/285kVA 60Hz diesel generator set is to provide high-stability, high-power-reserve and cost-effective professional power supply solutions for global 60Hz power standard regions and medium and high-load industrial and commercial scenarios. It makes up for the shortcomings of slow load response and insufficient power reserve of traditional medium-large power gensets, and is a reliable core power guarantee equipment for industrial continuous power supply and public emergency power backup.
In off-grid areas, power-deficient industrial zones and remote field operation bases, this genset acts as high-performance prime power generation equipment. With 228kW continuous stable prime power output and excellent variable-load operation capability, it supports long-term uninterrupted power supply for industrial production, engineering construction and staff daily life. The optimized fuel combustion and electronic governance technology effectively control operating fuel consumption, helping enterprises reduce daily power supply operating costs and improve overall operational benefits.
In urban commercial areas and standardized industrial parks with complete power grid facilities, the unit serves as high-reliability emergency standby power equipment. The 252kW/315kVA sufficient standby power reserve can quickly respond to sudden power failure, power grid overhaul and grid fluctuation emergencies, instantly take over the power supply of core production equipment and key public service facilities. It effectively avoids equipment damage, production stagnation and safety accidents caused by power interruption, and fully guarantees the continuity and safety of enterprise production and public service operation.
With Cummins’s upgraded 9.5L large-displacement engine technology, maintenance-friendly brushless alternator structure and intelligent full-protection system, this 285kVA diesel generator set has extremely low failure rate and long service life. It reduces the frequency of equipment shutdown maintenance and later human and material resource investment, and has become one of the most cost-effective and widely applicable medium-large power Cummins gensets in the 60Hz market, meeting the long-term power guarantee needs of medium-sized enterprises, key engineering projects and public institutions.
5. Frequently Asked Questions (FAQ)
Q1: What is the practical difference between prime power and standby power of Cummins 6LTAA9.5-G3 genset?
Prime power (228kW/285kVA) is the rated continuous operating power of the generator set, supporting 24-hour long-term uninterrupted operation and standard short-time overload operation. It is mainly used for long-term main power supply in off-grid areas, power-deficient industrial zones and field construction scenarios. Standby power (252kW/315kVA) is the maximum emergency power reserve of the unit, only applicable for short-time power supply during municipal power failure or unexpected emergencies, and cannot run at full load for a long time. In actual on-site operation, professional operators suggest controlling daily operating load within the prime power range to reduce engine wear and extend the overall service life of the genset.
Q2: Why is the brushless self-excited alternator of 6LTAA9.5-G3 genset more suitable for industrial long-term operation?
Different from traditional brushed alternators that require frequent carbon brush replacement, the brushless self-excited alternator equipped on this 285kVA Cummins genset has no wearable excitation parts, fundamentally eliminating common operational faults such as carbon brush wear, poor contact and spark ignition. Matched with H-class high-temperature resistant insulation and IP23 dustproof and waterproof protection grade, it can adapt to harsh industrial and outdoor working environments. Supported by AVR automatic voltage regulation technology, the output voltage and frequency are highly stable with low power supply distortion, which can well protect precision automation equipment and electrical devices. Its low maintenance workload and ultra-low failure rate fully meet the long-term unattended operation needs of industrial sites and engineering projects.
Q3: What is the standard daily maintenance cycle for Cummins 6LTAA9.5-G3 diesel generator set?
This 9.5L large-displacement G3 series industrial genset follows unified Cummins graded maintenance specifications. Daily routine inspection is required before each startup, including checking fuel reserve, lubricating oil level, cooling water capacity and circuit connection tightness, and cleaning surface dust and sundries after shutdown. The first maintenance including engine oil and filter replacement shall be carried out after 50 hours of initial operation. Conventional wearing parts such as oil filter, fuel filter and air filter need to be replaced every 250 hours of operation. A comprehensive inspection and calibration of the fuel injection system, turbocharger, cooling system and electronic control module shall be completed every 500 hours. Standardized maintenance can effectively maintain the unit’s power performance and stable operating state.

