50HZ YUCHAI YC6MJ500-D30 300kW/375kVA Diesel Generator Set

50HZ YUCHAI  300kW/375kVA Diesel Generator Set

1. Technical Parameter

2. Core Product Features

The YUCHAI YC6MJ500-D30 300kW/375kVA diesel generator set is a mid-to-large heavy-duty industrial power generation unit built on Yuchai mature MJ-series medium and heavy-duty engine platform. Optimized and calibrated specifically for long-hour full-load continuous power generation and frequent emergency power switching scenarios, this 375kVA 50Hz brushless diesel generator features compact and lightweight structural design, sufficient power reserve, stable transient load response and reliable fuel economy. It is one of the most cost-effective high-power power supply devices widely used in industrial production, municipal infrastructure, commercial complex backup power and field engineering power guarantee projects.

2.1 Lightweight Reinforced Structure with Super Durability

Different from traditional bulky high-power generators, this genset adopts the original Yuchai YC6MJ500-D30 dedicated power engine, which integrates a high-strength cast iron cylinder block, alloy forged steel crankshaft and reinforced connecting rod structure. Equipped with piston internal cooling oil passages and wet removable cylinder liners, the engine effectively reduces thermal fatigue wear during long-term heavy-load operation and prolongs the service life of core components. The overall structure is more lightweight and compact while maintaining industrial-grade rigidity, bringing greater convenience for transportation and on-site installation. Matched with premium brushless self-excited alternator, it completely abandons the carbon brush friction structure of traditional generators, eliminating common faults such as carbon brush wear, electric spark interference and frequent shutdown maintenance. With H-grade ultra-high temperature resistant insulation materials and IP23 dustproof and rainproof protection capability, the whole unit can operate stably for a long time in high-temperature, humid and dusty industrial harsh environments with extremely low operational failure rate.

2.2 Bosch Common Rail Intelligent Control with Low Fuel Consumption

Powered by imported BOSCH electronic high-pressure common rail fuel injection system, the YC6MJ500-D30 generator set can intelligently adjust fuel injection volume and timing according to real-time load fluctuations, realizing precise fuel supply and full combustion. After professional factory calibration, the full-load fuel consumption is stably controlled at 82L/H, and the minimum fuel consumption rate is as low as ≤195g/kW·h, showing outstanding energy-saving performance in long-duration continuous power generation scenarios. The four-valve per cylinder configuration and turbocharged intercooled intake technology ensure sufficient air inflow and thorough combustion, effectively reducing exhaust smoke and carbon deposition. The unit fully complies with Non-road National Stage III emission standards, featuring low noise and low pollutant emissions during operation, which can smoothly pass environmental assessment inspections of industrial parks and urban key construction projects.

2.3 Fast Transient Response and Strong Environmental Adaptability

This 330kW standby power diesel generator has excellent dynamic load adaptability and ultra-fast transient response capability. It can instantly cope with sudden load surges and grid voltage fluctuations, with voltage regulation accuracy controlled within 0.5%, effectively stabilizing output voltage and frequency. This stable power output can well protect precision industrial control equipment, automated production lines and public electrical facilities from power fluctuation damage. In terms of environmental adaptation, the unit supports reliable cold start at -25℃ without auxiliary heating equipment, adapting to winter outdoor construction and long-term power supply in alpine cold regions. It maintains stable non-derating operation at an altitude of 1500 meters, and the turbocharged intercooled system can automatically adjust air intake pressure and combustion state to adapt to plateau low-pressure working environments. The IP23 professional protection grade effectively blocks outdoor floating dust, sundries and light rain erosion, supporting long-term open-air placement and unattended continuous operation.

2.4 Low Lifecycle Operation Cost and High Cost Performance

The Yuchai MJ-series heavy-duty engine adopts mature industrial modular design with compact layout and fewer vulnerable parts, effectively reducing daily failure probability and operational risks. The brushless alternator structure saves regular carbon brush replacement and routine debugging work, greatly cutting down daily maintenance workload and technical threshold. Relying on Yuchai’s nationwide complete after-sales service network, users can enjoy convenient spare parts supply and professional after-sales maintenance services with low later maintenance costs. The ultra-long major overhaul cycle of more than 12000 hours minimizes equipment shutdown maintenance time and long-term investment cost. Whether used for fixed indoor industrial standby power or mobile field heavy-load main power supply, this 300kW industrial diesel generator maintains stable long-term performance and occupies a leading cost performance advantage in the medium and high-power generator market.

3. Main Application Scenarios

With stable 300kW prime continuous heavy-load power output, 330kW emergency peak power reserve and excellent multi-condition adaptability, the YUCHAI YC6MJ500-D30 diesel generator set covers large industrial production bases, municipal core infrastructure, large commercial complexes, field heavy-duty engineering and urban comprehensive emergency power guarantee fields. It is a mainstream high-power power supply equipment widely recognized for medium and large-scale high-load power demand projects.

3.1 Large Industrial Park & Factory Emergency Backup Power

This 375kVA industrial diesel generator is widely deployed as core emergency backup power for large manufacturing bases, chemical industrial parks, metallurgical plants, new energy workshops and large mining enterprises. For fully automated production lines, heavy mechanical processing equipment and precision industrial instruments that cannot tolerate sudden power outages, the unit can start rapidly and switch power supply automatically within seconds after grid power failure. It effectively avoids large-area production shutdown, product scrapping and equipment burnout losses caused by power interruption, ensuring continuous and orderly industrial production operation. Meanwhile, it can serve as the main power supply for remote industrial parks and mining areas with unstable municipal grid power or insufficient power capacity to meet long-term heavy-load power generation demands.

3.2 Large Commercial & Public Infrastructure Power Guarantee

With ultra-stable power output and high operational reliability, the genset is the preferred standby power solution for super high-rise office buildings, large shopping mall clusters, five-star hotel groups, tertiary comprehensive hospitals, university campuses and urban public service centers. It provides 24-hour uninterrupted emergency power support for key facilities including hospital emergency rescue equipment, building fire linkage systems, large data center monitoring systems and public power distribution systems. It effectively eliminates safety hazards and operational losses caused by sudden power failures, ensuring stable operation of urban public infrastructure and large commercial facilities.

3.3 Municipal & Field Heavy-duty Engineering Main Power Supply

In municipal key projects, bridge and tunnel construction, water conservancy and hydropower engineering, railway transit construction and remote field exploration projects without stable municipal grid coverage, this Yuchai heavy-duty generator acts as the core main power supply equipment. It steadily provides continuous power for large engineering machinery, high-power welding equipment, field construction assembly lines and temporary office facilities. Its excellent low-temperature startup performance and plateau non-derating operation capability enable stable operation in complex and harsh field working conditions, making it essential power guarantee equipment for large-scale infrastructure and field engineering construction teams.

3.4 Urban Emergency Rescue & Special Scenario Power Supply

The unit is commonly used for urban natural disaster emergency relief, power grid overhaul emergency power supply, large communication base station cluster backup power, scenic area peak power supply and remote regional power supply. When extreme weather, grid faults or large-scale power outages occur, it can start up quickly and put into operation to sustain basic urban operational power demands. It also meets high-load temporary power needs for large outdoor exhibitions, temporary engineering construction and emergency rescue sites, featuring strong scenario compatibility and practical value.

4. Core Product Purpose

The core purpose of the YUCHAI YC6MJ500-D30 300kW/375kVA diesel generator set is to provide stable, energy-saving and durable heavy-load power supply solutions for large industrial and commercial high-load projects. The 300kW prime power rating is designed for long-term continuous bearing of industrial heavy-load equipment, fully meeting daily off-grid main power supply and long-duration continuous power generation requirements of large enterprises, mining areas and large-scale engineering projects. The 330kW standby power reserves sufficient peak capacity to handle sudden power failure emergencies and instantaneous heavy-load power surges, solving common industry pain points such as municipal grid instability, regional power shortages and economic losses caused by unexpected power interruptions.

As a premium 50Hz industrial brushless self-excited heavy-duty diesel generator set, this model focuses on industrial-grade heavy-load reliability and long-term operational economy. Adopting Yuchai MJ-series mature medium and heavy-duty engine technology and high-stability brushless alternator configuration, it enhances equipment anti-interference ability and heavy-load resistance while reducing long-term operation and maintenance costs for users. It not only satisfies high-load power demands of large industrial production and commercial complex operation, but also provides reliable power guarantee for harsh field engineering construction and urban comprehensive emergency rescue scenarios, standing as a cost-effective high-power generation device integrating energy saving, environmental protection, stability and long service life.

5. Common FAQ

Q1: What is the actual usage difference between prime power and standby power of YC6MJ500-D30 generator set?

Prime power (300kW/375kVA) refers to the continuous usable rated power of the genset, supporting long-term cyclic full-load operation. It is mainly used for daily main power supply, long-term off-grid power generation and stable heavy-load industrial production operation. Standby power (330kW/412.5kVA) is short-term emergency peak power, exclusively designed for sudden grid power failure or instantaneous heavy-load surge scenarios. It only allows short-duration emergency operation and cannot run continuously at full load for a long time. Prolonged overloaded operation will accelerate aging of core engine components and shorten the unit’s overall service life. In actual engineering applications, professional operators usually control the operating load within 80% of prime power to ensure long-term stable and efficient operation.

Q2: What core advantages does the brushless self-excited alternator bring to YC6MJ500-D30 genset?

The YC6MJ500-D30 generator set adopts industrial-grade brushless self-excited alternator, which completely cancels the traditional carbon brush and slip ring friction structure. This design fundamentally eliminates frequent faults such as carbon brush wear, electric spark generation and regular replacement maintenance during long-term heavy-load operation, greatly reducing daily failure rate and maintenance workload. Matched with H-grade high-temperature resistant insulation and IP23 dustproof and rainproof protection grade, the alternator resists high-temperature aging and external environmental erosion effectively. The voltage regulation accuracy is controlled within ≤0.5%, avoiding voltage and frequency fluctuation and protecting precision electrical equipment and automated production lines. It is highly suitable for long-term unattended heavy-load operation in industrial workshops and outdoor harsh environments.

Q3: What kind of working environments can the YC6MJ500-D30 diesel generator adapt to?

This medium and heavy-duty industrial genset has passed strict extreme environment adaptation tests with excellent environmental tolerance. It achieves reliable cold start at -25℃ without auxiliary heating equipment, adapting to winter outdoor construction and industrial power supply in alpine cold regions. The unit maintains stable non-derating power output at an altitude of 1500 meters, and the turbocharged intercooled system automatically adjusts air intake and combustion status to adapt to low-pressure plateau working conditions. Supported by IP23 professional protection capability, it effectively resists outdoor dust, moisture and light rain erosion, supporting long-term open-air placement and unattended continuous operation for various industrial, municipal and field engineering scenarios.