50HZ Yuchai YC6C1520-D31 900kW/1125kVA Diesel Generator Set

50HZ Yuchai  900kW/1125kVA Diesel Generator Set

1. Technical Parameters

2. Core Product Features

The Yuchai YC6C1520-D31 900kW/1125kVA diesel generator set is a super heavy-duty high-power power generation equipment tailored for large-scale industrial high-load scenarios. As a mainstream hot-selling 50Hz industrial diesel generator set in the high-power market, it adopts Yuchai’s mature C-series heavy-duty engine platform, matched with high-performance brushless self-excited alternator. This 1125kVA diesel generator boasts ultra-large power reserve, outstanding continuous operation stability and strong harsh environment adaptability, effectively solving the problems of insufficient power and unstable operation of ordinary high-power units under long-term heavy load. With reliable quality and low comprehensive failure rate, it has become the preferred power guarantee equipment for large industrial parks, super engineering projects and key municipal facilities.

2.1 Super Large Power Reserve, Strong Heavy-Load Impact Resistance

Equipped with genuine Yuchai YC6C1520-D31 dedicated generator engine, this unit adopts optimized turbocharged intercooled technology and six-cylinder high-efficiency combustion structure. It can stably output 900kW long-term continuous prime power and support 1000kW short-time emergency standby power supply, with far higher power reserve than conventional same-grade generator sets. In actual industrial operation, it can cope with instantaneous load surge and peak power fluctuation of large-scale production equipment, always maintaining stable 50Hz frequency and 400V three-phase voltage output, without voltage drop, frequency drift or sudden shutdown. It fully meets the 24-hour high-load continuous operation demand of heavy industry, mining and large chemical enterprises, and is suitable for ultra-high load power supply scenarios that ordinary generator sets cannot bear.

2.2 Intelligent Electronic Fuel Injection, Balanced Power and Energy Saving

This 900kW Yuchai diesel generator set adopts advanced electronic precise fuel injection system, which can intelligently adjust fuel injection volume and injection timing in real time according to load changes, realizing precise matching of oil and gas and full combustion. The full-load fuel consumption is stably controlled at 253.3L/H. Through optimized combustion chamber structure and air intake system design, it reduces invalid fuel waste and heat loss, ensuring stable high-power output while controlling operating fuel cost. The whole machine adopts serialized modular design with high versatility of accessories, which avoids the trouble of difficult matching of special parts in later maintenance, effectively reducing the time and economic cost of daily maintenance and fault repair for users.

2.3 High Safety Protection Grade, Durable and Reliable

Matched with industrial-grade brushless self-excited alternator, the unit completely cancels traditional carbon brush and slip ring friction components, fundamentally eliminating mechanical wear, electric spark generation and electromagnetic interference during high-power operation. The operation process is safer and more stable, and will not interfere with precision instruments, communication equipment and flammable and explosive production environments. Equipped with H-grade ultra-high temperature resistant insulation materials, the alternator can resist long-term high-load and high-temperature aging, effectively preventing insulation breakdown, electric leakage and other electrical faults. The IP23 professional dust-proof and splash-proof protection grade enables the unit to adapt to open-air construction sites, dusty industrial workshops, humid outdoor machine rooms and other complex working environments. The high-strength integral cast iron engine body improves structural rigidity, reduces operating vibration, and ensures long-term durable operation of the equipment.

2.4 Full Intelligent Monitoring, Low Operation and Maintenance Cost

This 1000kW standby diesel generator set is equipped with a complete intelligent fault protection and monitoring system, covering overvoltage, undervoltage, overload, overspeed, high water temperature, low oil pressure and automatic shutdown protection functions. It can real-time monitor core operating data such as unit oil pressure, water temperature, voltage and frequency, automatically alarm and cut off power in case of abnormal conditions, and effectively protect equipment and circuit safety. The humanized internal layout simplifies daily inspection and maintenance procedures. On-site staff can complete routine maintenance work such as filter replacement, oil quality detection and equipment dust cleaning without professional technical operation, greatly reducing daily operation management pressure and after-sales maintenance difficulty.

3. Main Application Scenarios

Relying on ultra-high power output, strong operational stability and wide environmental adaptability, the Yuchai YC6C1520-D31 heavy-duty diesel generator set is widely used in large heavy industrial production, key municipal infrastructure, super large engineering projects and off-grid field construction. It can be used as both long-term off-grid main power supply and municipal grid emergency backup power supply, covering all large-scale high-power and high-reliability power demand scenarios.

3.1 Large Heavy Industry, Mining and Chemical Parks

This 1125kVA industrial diesel generator set is specially designed for super large manufacturing factories, large mining enterprises, metallurgical processing bases and chemical industrial parks. These scenarios have huge power consumption and extremely high requirements for power supply continuity and stability. The 900kW continuous prime power can support 24-hour uninterrupted operation of heavy mining equipment, large automated production lines and industrial supporting facilities. When the municipal grid is cut off, limited in power or fails suddenly, the 1000kW high standby power can quickly take over the power supply, avoid large-scale production shutdown and equipment damage, and minimize economic losses caused by power interruption for industrial enterprises.

3.2 Key Municipal Public Infrastructure

It is the core emergency power supply equipment for large data center clusters, provincial and municipal hospital clusters, airport and railway hub supporting facilities, urban municipal emergency engineering and communication core base stations. As key facilities related to urban public operation and data security, these scenarios have zero tolerance for power failure. Sudden power interruption will lead to core data loss, medical rescue suspension and public facility paralysis. This high-power Yuchai generator set features fast start and seamless power switching, which can continuously provide stable and reliable power for precision medical equipment, server room systems and public service facilities, ensuring the stable operation of urban key infrastructure.

3.3 Super Large Commercial Complexes and High-Rise Building Clusters

For super large shopping malls, commercial city complexes, super high-rise office building clusters and large-scale residential communities, this generator set serves as a standard fire emergency backup power supply that meets national fire protection acceptance standards. In case of municipal grid power failure, planned power maintenance and peak power limitation in summer and winter peak power consumption periods, the unit can start instantly to supply power for fire linkage systems, building elevators, emergency lighting, security monitoring and weak current systems, ensuring building fire safety and personnel evacuation safety in emergency situations.

3.4 Large-Scale Off-Grid Engineering and Special Scenarios

In remote large-scale road and bridge projects, new energy industrial bases, field operation camps and national defense engineering projects without stable municipal grid coverage, this 50Hz Yuchai diesel generator set can be used as the main power supply equipment. Relying on excellent high-temperature resistance, dust resistance and splash resistance, it can operate stably in harsh outdoor environments, providing continuous and stable high-power support for large construction machinery, on-site living facilities and professional production equipment, solving the long-term power supply problem of large off-grid engineering projects.

4. Core Product Uses

As a super heavy-duty high-power power generation equipment of Yuchai C-series, the YC6C1520-D31 unit focuses on emergency power backup, off-grid continuous main power supply, municipal grid peak shaving and special industry all-weather power guarantee, which can flexibly meet the diversified high-standard power demand of large industrial and engineering users.

4.1 Municipal Grid Emergency Standby Power Supply

Emergency power backup is the most widely used function of the 900kW prime power diesel generator set. In daily operation, the unit keeps hot standby state. Once the municipal power grid trips, fails or undergoes planned overhaul, the equipment can start quickly and complete seamless power switching in a short time. It is mainly used to protect core production equipment and key public infrastructure, avoid safety accidents and economic losses caused by sudden power interruption, and provide reliable emergency power guarantee for various high-standard scenarios.

4.2 Long-Term Off-Grid Main Power Supply

In remote areas, large field operation sites and industrial zones with insufficient grid capacity and unstable voltage, the 1125kVA stable continuous power output can be used as long-term main power supply. With excellent long-duration operation stability and ultra-strong load resistance, it can support 24-hour uninterrupted operation of large-scale production and living equipment, completely replacing municipal grid power supply, and fully meeting the long-term high-power consumption demand of large off-grid engineering and production scenarios.

4.3 Power Grid Peak Shaving and Voltage Stabilization

In industrial intensive areas with tight grid power supply and obvious peak power shortage, the unit can cooperate with the municipal grid for peak shaving operation. During peak power consumption periods, it supplements grid power shortage, stabilizes 50Hz frequency and 400V rated voltage, suppresses power fluctuation and voltage drop, effectively protects precision electrical equipment and automated production lines from damage caused by unstable power supply, and improves the overall stability of regional industrial power consumption.

4.4 All-Weather Power Guarantee for Special Industries

Relying on H-grade high-temperature resistant insulation and IP23 high protection grade, the unit adapts to various harsh working conditions such as high temperature, humidity and heavy dust. It can provide professional all-weather power guarantee for municipal emergency rescue, national defense engineering, large-scale event power guarantee and industrial heavy production industries, meeting the ultra-high reliability power demand of special industry scenarios.

5. Common FAQ

Q1: What is the essential difference between prime power and standby power of YC6C1520-D31 generator set in actual use?

The 900kW/1125kVA prime power is continuous rated power, which supports long-term full-load stable operation and is applicable to daily off-grid main power supply and long-time heavy-load operation. The 1000kW/1250kVA standby power belongs to emergency peak power, only used for short-time power supply when the municipal grid fails. In accordance with national industry norms, the cumulative annual use time of standby power shall not exceed 500 hours, and long-term full-load operation is prohibited. Long-term overuse of standby power will aggravate engine mechanical wear, increase equipment failure rate, and greatly shorten the overall service life of the high-power generator set.

Q2: What are the practical advantages of brushless self-excited alternator for this 1125kVA high-power generator set?

For high-power units above 1000kVA, traditional brushed alternators are prone to carbon brush ablation, spark failure and serious wear under long-term heavy load. The brushless self-excited alternator adopted by YC6C1520-D31 cancels carbon brushes and slip ring friction structures, fundamentally eliminating mechanical failure and electromagnetic interference during high-power operation. It features higher operation safety and more stable voltage output, which will not affect precision equipment and communication systems. In addition, it saves the regular carbon brush replacement process, greatly reducing daily maintenance workload and long-term operating costs for enterprises.

Q3: How to scientifically reduce the fuel consumption of YC6C1520-D31 900kW diesel generator set during daily operation?

First, avoid long-term no-load idling and low-load operation, and keep the unit operating load between 60% and 80% of rated power, which is the most energy-efficient and stable working range for this C-series heavy-duty unit. Second, regularly replace air filters, diesel filters and oil filters to ensure sufficient air intake and full fuel combustion of the turbocharged system. Third, regularly inspect the closed-cycle water cooling system and electronic fuel injection system to avoid power attenuation and increased fuel consumption caused by poor heat dissipation and abnormal fuel supply. Meanwhile, using qualified standard diesel oil and special engine lubricating oil can effectively optimize combustion efficiency and reduce comprehensive operating fuel consumption.