50Hz Cummins 6LTAA9.5-G1 250kW/313kVA Diesel Generator Set

50Hz Cummins  250kW/313kVA  Diesel Generator Set

1. Technical Parameter

2. Core Product Features

The Cummins 6LTAA9.5-G1 250kW/313kVA diesel generator set is a high-power heavy-duty industrial genset built on Dongfeng Cummins mature 9.5L large-displacement G-drive engine platform. Optimized for industrial full-load continuous operation and emergency peak load scenarios, this model features upgraded turbocharged air-air intercooled system and precise electronic fuel regulation structure. With a prime power of 313kVA and a maximum standby power of 350kVA, it delivers abundant power reserve and stable full-load operating performance. After long-term market verification, it has become a mainstream choice for 313kVA industrial continuous power generation and 350kVA high-power emergency standby power supply, widely used in heavy industry, mining, municipal engineering and large-scale commercial supporting scenarios.

2.1 9.5L Large-displacement Intercooled Structure, Super Abundant Power Reserve

Powered by genuine Dongfeng Cummins 6LTAA9.5-G1 inline six-cylinder four-stroke water-cooled engine, the unit adopts professional turbocharged and air-air intercooled dual circulation design. The upgraded 116.5mm×148mm large bore-stroke and 9.5L super displacement effectively improve air intake efficiency and fuel combustion adequacy, completely solving the power attenuation problem of medium-power gensets under long-term high-temperature and full-load operation. The factory calibrated prime power reaches 250kW/313kVA, and the emergency standby power is up to 280kW/350kVA, with a super-high overload margin. It can easily cope with instantaneous startup surge of large crushing equipment, mechanical processing equipment and engineering machinery, and maintain stable power output during long-term variable load alternating operation. Matched with high-quality full-copper brushless alternator and high-precision AVR automatic voltage regulation system, the voltage and frequency fluctuation is strictly controlled within the standard range, stably outputting 50Hz industrial standard power supply, fully meeting the high-stability power demand of heavy industrial production and large engineering construction.

2.2 Mechanical Fuel Pump + Electronic Governor, Stable Load Response

This 250kW Cummins heavy-duty diesel generator is equipped with a matched mechanical fuel pump and high-sensitivity GAC electronic governor, forming a mature and reliable fuel supply control system. Different from single mechanical regulation structure, the dual matching mode realizes real-time adaptive fuel supply adjustment according to on-site load changes, with speed regulation accuracy stably controlled within ±1%. The load response speed is fast, and there is no stalling or voltage surge during frequent load switching and instantaneous overload access. The full-load fuel consumption is stably maintained at 70L/H, with no obvious fluctuation after long-cycle continuous operation. The stable fuel consumption performance is convenient for industrial enterprises to carry out daily power generation cost accounting and long-term operation budget planning, balancing high-power output and operational economy.

2.3 Reinforced Cast Iron Body, Strong Durability & Low Comprehensive Failure Rate

Aiming at harsh working conditions such as industrial high-load operation, mining dust pollution and outdoor high-temperature operation, the 6LTAA9.5-G1 engine adopts integral thickened cast iron cylinder block and high-strength forged steel crankshaft structure, with high overall structural rigidity and strong vibration and impact resistance. The optimized body sealing process and pipeline layout effectively improve the common oil and water leakage faults of traditional high-power generators. Equipped with wear-resistant cylinder wall and high-temperature resistant piston components, the unit can adapt to 24-hour long-term uninterrupted high-load operation. The average trouble-free operation hours reach 2200 hours, and the overhaul service life is extended to more than 7000 hours. The number of vulnerable parts is small, daily maintenance is simple and convenient, and the later operation and maintenance cost is low, which is very suitable for long-term unattended operation of industrial and mining enterprises.

2.4 Brushless Maintenance-free Design + Multi-dimensional Safety Protection

The alternator adopts mature brushless self-excited excitation technology, eliminating carbon brushes, slip rings and other easily worn parts of traditional brushed generators, fundamentally reducing mechanical failure points and daily maintenance workload. The H-grade ultra-high temperature resistant insulation material can resist long-term high-temperature aging, moisture erosion and electrical breakdown, ensuring stable power generation performance in high-heat and humid environments. The IP23 dust-proof and splash-proof protection grade can effectively isolate construction dust, debris invasion and light rain splash, supporting indoor generator room fixed installation and outdoor awning protection placement. In addition, the unit is equipped with complete intelligent protection functions including low oil pressure alarm shutdown, high water temperature overheat protection, overload protection, overvoltage and undervoltage protection and overspeed automatic shutdown, which can automatically alarm and cut off power in case of abnormalities to ensure equipment and on-site power consumption safety.

3. Main Application Scenarios

With 9.5L large-displacement strong power performance, 350kVA ultra-high standby power margin and excellent full-load stability, the Cummins 6LTAA9.5-G1 250kW/313kVA diesel generator set is widely used in heavy industrial manufacturing, open-pit mining operations, large-scale municipal infrastructure, port terminal engineering, industrial park standby power and large-scale emergency power guarantee fields. It is the preferred power supply equipment for 313kVA heavy industry continuous power supply and 350kVA engineering emergency standby power.

3.1 Heavy Industrial Manufacturing & Processing Parks

It is suitable for large mechanical processing workshops, metallurgical production bases, chemical industrial parks, building materials processing plants, non-ferrous metal smelting and large food processing enterprises. Heavy industrial production has high requirements for power supply continuity and stability. Sudden grid power failure, seasonal power rationing and routine power grid maintenance will directly cause full-line shutdown and huge economic losses. This high-power intercooled generator has strong instantaneous overload resistance and fast switching response speed, which can quickly take over power supply to ensure the normal operation of heavy production equipment, workshop ventilation and water supply systems and intelligent monitoring equipment, effectively guaranteeing uninterrupted industrial production.

3.2 Mining & Remote Off-grid Field Construction

For open-pit mining, underground mining auxiliary power supply, mountain field exploration, remote highway and railway construction and water conservancy project construction without complete municipal power grid coverage, this Cummins 6LTAA9.5-G1 off-grid diesel generator serves as the core main power supply equipment. Its turbocharged air-air intercooled heat dissipation structure adapts to dusty and high-temperature harsh mining working conditions, and the electronic speed regulation system can stably cope with frequent load fluctuations in mining operation. The 9.5L large-displacement power core supports 24-hour long-term continuous high-load power generation, fully meeting the power demand of mining machinery, field office communication equipment and staff living supporting facilities.

3.3 Large Municipal Infrastructure & Port Terminal Projects

It is the ideal power guarantee equipment for long-cycle key projects such as municipal road and bridge engineering, large-scale water conservancy and hydropower construction, tunnel engineering, urban comprehensive renovation and port terminal operation. Large infrastructure projects have long construction cycles and complex outdoor working environments, and rely heavily on stable mobile power supply. The unit has excellent environmental adaptability and anti-interference performance, can resist outdoor temperature changes, wind and dust erosion, and provides continuous and stable power support for large engineering machinery and construction auxiliary equipment, ensuring the smooth progress of key municipal projects.

3.4 Large Industrial Parks & Commercial Complex Clusters

Suitable for comprehensive industrial parks, super-large shopping mall clusters, high-rise office buildings and five-star hotel groups with large power consumption and high power supply reliability requirements. These scenarios have dense electrical equipment and large peak power consumption. In summer high-temperature power tension periods, sudden grid failures and routine power maintenance, the unit can automatically start and switch power supply, ensuring the normal operation of fire control linkage systems, emergency elevators, public lighting and central air conditioning systems, maintaining stable commercial operation order and industrial park production efficiency.

3.5 Municipal Public Facilities & Emergency Rescue Fields

It can be used as emergency backup power for regional central hospitals, fire rescue brigades, municipal emergency command centers, environmental monitoring stations and traffic management centers. In sudden power outage emergencies, the unit can respond rapidly with stable high-power output, providing reliable power guarantee for medical rescue equipment, fire alarm linkage systems, emergency disposal equipment and precision monitoring instruments, effectively improving regional public service capacity and emergency rescue efficiency.

4. Core Product Purpose

Positioned as a high-power high-stability Cummins 313kVA diesel generator, the 6LTAA9.5-G1 model focuses on solving long-cycle high-load continuous power supply and high-standard emergency peak load power guarantee demands in harsh industrial and complex engineering scenarios, covering industrial emergency standby power, off-grid main power supply, power grid peak regulation and key public facility power backup.

Firstly, it provides high-power emergency backup power for heavy industrial enterprises. Aiming at large heavy industrial parks and high-load manufacturing bases, it responds to sudden grid outages, seasonal power rationing and routine power cut maintenance, avoiding large-scale production shutdown and equipment stagnation caused by power interruption, and building a solid power safety barrier for enterprise continuous production.

Secondly, it acts as long-term stable prime power for off-grid mining and field engineering. For remote mining areas, field construction sites and weak grid areas with unstable voltage, the unit can operate continuously for 24 hours as the main power generation equipment, stably outputting 250kW rated power to meet the long-term production, processing and living power demand of field operation teams.

Thirdly, it undertakes power grid peak shaving and auxiliary power supply for high-consumption scenarios. In summer high-temperature peak power consumption periods with tense regional power supply, the generator set can be started for auxiliary power supply to make up for municipal power grid capacity shortage, relieve equipment overload pressure, and avoid project stagnation and economic losses caused by power shortage.

Finally, it provides high-precision stable power guarantee for key professional equipment. Relying on electronic precise speed regulation and AVR constant voltage technology, the unit has extremely low power supply fluctuation, which can supply high-quality pure power for medical rescue devices, fire control systems, environmental monitoring instruments and industrial precision processing equipment, avoiding equipment failure, data loss and safety accidents caused by unstable power supply.

5. Common FAQ

Q1: What is the actual usage difference between prime power and standby power of Cummins 6LTAA9.5-G1 generator?

The 250kW/313kVA prime power is the continuous rated power officially certified by Cummins, supporting 24-hour long-term stable operation throughout the year, which is suitable for off-grid main power supply and daily long-term standby power consumption of industrial parks. The 280kW/350kVA standby power is emergency peak power, only allowing 1-hour overload operation within 12 hours, and long-term operation at standby load is not allowed. Based on years of on-site construction experience, controlling the daily operating load within 80% of the prime power can effectively reduce engine wear, stabilize 70L/H full-load fuel consumption, and greatly extend the service life of the 6LTAA9.5-G1 313kVA high-power diesel generator set.

Q2: What are the core advantages of 6LTAA9.5-G1 9.5L high-power genset compared with conventional 8.9L models?

The 6LTAA9.5-G1 is an upgraded high-power iteration of the traditional 8.9L series gensets. The most intuitive advantage is the upgraded 9.5L large-displacement engine, with higher engine rated power and more sufficient power reserve. The standby power is increased to 350kVA, with stronger emergency overload capacity to cope with sudden large-load startup. The optimized air-air intercooled system improves high-temperature resistance, effectively avoiding power attenuation in summer high-load operation. Meanwhile, the upgraded mechanical fuel supply and electronic speed regulation matching structure has higher operational stability and lower failure rate, which is more suitable for long-term uninterrupted power generation in heavy industry and mining high-load scenarios.

Q3: What installation and daily maintenance points need attention for IP23 6LTAA9.5-G1 heavy-duty generator?

This high-power heavy-duty unit adopts IP23 dust-proof and splash-proof design and H-grade high-temperature insulation, which can adapt to indoor generator room fixed installation and outdoor awning protection installation, and can cope with construction site dust, high temperature and other harsh environments. During installation, enough heat dissipation space must be reserved around the unit to prevent high-temperature shutdown caused by poor heat dissipation of the 9.5L large-displacement engine. In daily use, regularly replace lubricating oil and three filters, check the working state of the electronic governor and intercooled system, and keep the fuel pipeline unobstructed. Avoid long-term full-load overload operation, which can effectively reduce mechanical loss and keep the unit in stable working condition for a long time.