50HZ YUCHAI YC6K660-D30 400kW/500kVA Diesel Generator Set

50HZ YUCHAI  400kW/500kVA Diesel Generator Set

1. Technical Parameter

2. Core Product Features

The YUCHAI YC6K660-D30 400kW/500kVA diesel generator set is a high-power heavy-duty industrial power generation unit built on Yuchai mature 6K series large-displacement engine platform. Optimized for long-term full-load continuous operation and high-intensity emergency power switching scenarios, this500kVA 50Hz brushless diesel generator delivers abundant power reserve, fast transient response and ultra-stable operational performance. It effectively solves power supply instability and insufficient peak power problems in high-load industrial and commercial projects, being one of the most cost-effective high-power generator solutions in the current market.

2.1 Reinforced Heavy-duty Structure with Super Durability

Powered by the original Yuchai YC6K660-D30 industrial dedicated power engine with a rated power of 470kW, this genset adopts a high-rigidity integral cast iron cylinder block and alloy forged steel crankshaft structure. The optimized mechanical structure greatly enhances overall rigidity and fatigue resistance, effectively resisting thermal wear and mechanical vibration during long-hour full-load heavy-duty operation. Equipped with six-cylinder inline four-stroke layout and four valves per cylinder design, matched with professional turbocharged intercooled intake system, the engine achieves sufficient air intake and uniform fuel combustion, ensuring continuous and stable power output under long-term high-load working conditions. The wet removable cylinder liner design simplifies daily maintenance and parts replacement, avoiding tedious overall engine disassembly. Matched with premium brushless self-excited alternator, it abandons traditional carbon brush friction structure, eliminating common faults such as carbon brush aging, electric spark interference and frequent shutdown maintenance. With H-grade high-temperature resistant insulation and IP23 dustproof and rainproof protection grade, the whole unit runs stably in high-temperature, humid and dusty harsh environments with ultra-low failure rate.

2.2 Bosch Common Rail System with Precise Fuel Control

This industrial diesel generator adopts imported BOSCH electronic high-pressure common rail fuel injection technology, which can intelligently adjust fuel injection volume and timing according to real-time load fluctuations. The precise fuel control system realizes full fuel combustion, effectively reducing fuel waste and carbon deposition. With a minimum fuel consumption rate of ≤192g/kW·h and stable full-load fuel consumption of 103L/H, it maintains excellent energy-saving performance during long-duration continuous power generation. The optimized intake and exhaust structure reduces exhaust smoke and noise pollution, fully complying with Non-road National Stage III emission standards. The low oil consumption design with oil consumption rate lower than 0.2% of fuel consumption greatly reduces long-term operational costs, meeting the green and low-carbon operation requirements of modern industrial parks and urban key projects.

2.3 Excellent Transient Response and Strong Environmental Adaptability

As a high-performance 440kW standby power diesel generator, this unit has outstanding dynamic load adaptability and ultra-fast transient response capability. Adopting patented point-line meshing gear noise reduction technology, it operates with low vibration and stable speed, effectively coping with sudden load surges and grid voltage fluctuations. The voltage regulation accuracy is controlled within 0.5%, and the G3 industrial-grade power quality ensures stable three-phase voltage and frequency output, fully protecting precision industrial equipment, automated production lines and core public electrical systems from power quality damage. In extreme working environments, it supports reliable cold start at -25℃ without auxiliary heating devices, adapting to alpine region outdoor construction and winter industrial power supply. It maintains non-derating stable operation at altitudes up to 1500 meters, and the turbocharged intercooled system automatically adapts to low-pressure plateau environments. The IP23 professional protection structure resists dust, floating debris and light rain erosion, supporting long-term open-air unattended operation.

2.4 Low Lifecycle Maintenance and High Cost Performance

The Yuchai 6K series heavy-duty engine adopts mature modular industrial design with compact layout and fewer vulnerable parts, greatly reducing daily failure risks and maintenance workload. The brushless alternator design cancels regular carbon brush replacement and routine debugging work, cutting down long-term operational and maintenance costs significantly. Backed by Yuchai’s nationwide complete after-sales service network and sufficient spare parts supply system, users can access convenient on-site maintenance and technical support at any time. The ultra-long major overhaul cycle of over 12000 hours minimizes equipment shutdown time and improves overall operational efficiency. Whether used for fixed indoor standby power or mobile field main power supply, this 400kW industrial diesel generator maintains stable long-term performance with remarkable comprehensive cost performance in high-power generator equipment.

3. Main Application Scenarios

Benefiting from stable 400kW prime continuous heavy-load power, 440kW emergency peak power reserve and excellent multi-condition adaptability, the YUCHAI YC6K660-D30 diesel generator set is widely applied in heavy industrial production, large municipal infrastructure, super commercial complexes, field engineering construction and urban emergency power guarantee fields, serving as core power supply equipment for various high-load power demand projects.

3.1 Heavy Industrial Park and Large Manufacturing Factory Backup Power

This 500kVA three-phase industrial diesel generator is the preferred emergency backup power for heavy machinery manufacturing bases, chemical industrial parks, metallurgical plants, new energy industrial zones and large mining enterprises. For fully automated production lines, heavy processing equipment and precision industrial control instruments that cannot withstand sudden power outages, the unit can start quickly and complete automatic power switching in seconds after municipal grid failure. It effectively avoids massive production shutdowns, product scrapping and equipment burnout losses, ensuring uninterrupted industrial production. For remote industrial zones and mining areas with unstable grid power or insufficient power capacity, it can also serve as long-term off-grid main power supply to meet continuous high-load power generation demands.

3.2 Super Commercial and Public Infrastructure Power Guarantee

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

3.3 Municipal and Field Heavy-duty Engineering Main Power Supply

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

3.4 Urban Emergency Rescue and Special Scenario Power Supply

The unit is widely 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 rapidly and put into operation to guarantee basic urban operational power demands. It also meets high-load temporary power needs for large outdoor exhibitions, temporary engineering construction and emergency rescue sites, with strong scenario compatibility and practical value.

4. Core Product Purpose

The core purpose of the YUCHAI YC6K660-D30 400kW/500kVA diesel generator set is to provide stable, high-efficiency and low-maintenance heavy-load power supply solutions for large industrial and commercial high-load projects. The 400kW prime power rating is professionally designed for long-term continuous heavy-load operation, 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 440kW standby power reserves sufficient peak power capacity to cope with 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 high-performance 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 6K series large-displacement heavy-duty engine technology and high-stability brushless alternator configuration, it improves equipment anti-interference ability and harsh environment resistance while reducing daily operation and maintenance costs. It not only meets the high-load power guarantee demands of heavy industrial production and super commercial complex operation, but also provides reliable power support for harsh field engineering construction and urban comprehensive emergency rescue scenarios, being a high-cost-performance high-power generation device integrating stability, energy saving and durability.

5. Common FAQ

Q1: What is the practical difference between prime power and standby power of YC6K660-D30 generator set?

Prime power (400kW/500kVA) 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 (440kW/550kVA) is short-term emergency peak power, only designed for sudden grid power failure or instantaneous heavy-load surge scenarios. It cannot run continuously at full load for a long time, and prolonged overload operation will accelerate aging of engine core 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 are the core advantages of the brushless self-excited alternator equipped on this genset?

The YC6K660-D30 generator set adopts industrial-grade brushless self-excited alternator, which completely abandons 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 can resist 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 from power quality damage. It is highly suitable for long-term unattended heavy-load operation in industrial workshops and outdoor harsh environments.

Q3: What extreme working environments can the YC6K660-D30 diesel generator adapt to?

This Yuchai 6K series heavy-duty industrial genset has excellent environmental tolerance after strict extreme environment tests. It can achieve 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 state to adapt to plateau low-pressure 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 complex industrial, municipal and field engineering scenarios.