50HZ Yuchai YC6TH1070-D31 650kW/812.5kVA Diesel Generator Set

50HZ Yuchai   650kW/812.5kVA Diesel Generator Set

1. Technical Parameters

2. Core Product Features

The Yuchai YC6TH1070-D31 650kW/812.5kVA diesel generator set is a new-generation heavy-duty high-power power generation equipment built on Yuchai mature TH series high-load engine platform. As a hot-selling 50Hz industrial diesel generator set for large-scale high-power demand scenarios, it adopts twin-turbocharged intercooled technology and four-valve high-efficiency combustion structure. It features strong power reserve, fast transient response, stable continuous operation and low comprehensive failure rate, perfectly adapting to long-term high-load operation and sudden peak load impact working conditions. Relying on Yuchai’s mature industrial power manufacturing technology, this unit has excellent durability and cost performance, and is widely used in large industrial production, municipal key projects and off-grid field engineering fields.

2.1 Twin-Turbo Power Design, Strong Load Impact Resistance

Equipped with genuine Yuchai YC6TH1070-D31 professional power engine exclusively for generator sets, this unit adopts advanced twin-turbocharged intercooled technology, which effectively improves intake efficiency and power density compared with traditional single-turbo engines. It stably outputs 650kW long-term continuous prime power and supports 710kW short-time emergency standby power supply. The 6-cylinder inline four-valve structure brings sufficient power reserve and ultra-fast load response capability, which can cope with instantaneous load surge in heavy industrial production, maintain stable 50Hz frequency and 400V three-phase voltage output without voltage flicker, frequency deviation or sudden shutdown. It completely meets the high-standard power demand of large automated production lines, heavy mechanical equipment and high-power industrial supporting facilities, solving the problem of insufficient load capacity of ordinary high-power generator sets under extreme working conditions.

2.2 Precise Electronic Fuel Control, Balanced Energy-Saving and High Efficiency

This 812.5kVA diesel generator set is equipped with an electronically controlled precise fuel injection system, which accurately controls fuel injection volume and injection timing according to load changes, realizing uniform oil-gas mixing and full combustion. The full-load fuel consumption is stably controlled at 177.2L/H, maintaining excellent energy-saving performance while outputting high power. Optimized reentrant combustion chamber design reduces ineffective fuel waste and heat loss, effectively lowering daily fuel operating costs for enterprises. In addition, the TH series engine adopts high-integration structural design with high versatility of accessories, which greatly reduces the difficulty and cost of later maintenance and parts replacement, bringing lower comprehensive operation and maintenance expenses for long-term users.

2.3 High Safety and Super Durability, Adapt to Complex Working Conditions

Matched with industrial-grade brushless self-excited alternator, the unit cancels traditional carbon brush and slip ring friction components, fundamentally eliminating mechanical wear, electric spark and electromagnetic interference during operation. The operation process is safer and more stable, and will not interfere with precision instruments, communication equipment and flammable and explosive working environments. The H-grade high-temperature resistant insulation material can resist long-term high-load and high-temperature aging, effectively preventing insulation breakdown, electric leakage and other faults. The IP23 professional protection grade can effectively block external dust, debris and splash rainwater, adapting to open-air construction sites, dusty factory workshops, humid outdoor machine rooms and other complex working scenarios. The engine body is made of high-strength alloy cast iron with integral forged crankshaft, which has high structural rigidity, low operation vibration and long service life, and can stably operate for a long time in harsh environments.

2.4 Intelligent Full Protection, Simple Daily Operation and Maintenance

This 710kW standby diesel generator set is equipped with a complete intelligent monitoring and fault self-protection system, covering overvoltage, undervoltage, overload, overspeed, high water temperature, low oil pressure and automatic shutdown protection functions. It can monitor the unit’s operating status in real time, automatically alarm and cut off power in case of abnormal conditions, effectively protecting equipment circuits and user property safety. The reasonable internal layout and modular structural design simplify daily inspection and maintenance procedures. Users can quickly complete filter replacement, oil level inspection, circuit debugging and daily dust cleaning without complex professional operation. The low failure rate and easy maintenance characteristics greatly reduce daily equipment management pressure and after-sales maintenance difficulty.

3. Main Application Scenarios

With the advantages of high power, strong stability, fast load response and wide environmental adaptability, the Yuchai YC6TH1070-D31 diesel generator set covers multiple high-power and high-reliability power demand industries. It can be used as both long-term off-grid main power supply and municipal grid emergency backup power supply, and is widely applied in heavy industry production, municipal key infrastructure, large commercial supporting, field engineering construction and special industry power guarantee scenarios.

3.1 Heavy Industry, Mining and Chemical Production

It is specially suitable for large manufacturing factories, industrial parks, mining enterprises, metallurgical processing plants and chemical industry parks. These heavy-duty scenarios have large daily power consumption and extremely high requirements for power supply continuity and stability. The 650kW prime power can support 24-hour uninterrupted operation of large mechanical equipment, automated production lines and industrial supporting facilities. When the municipal grid is cut off, limited in power or fails suddenly, the 710kW high standby power can quickly take over the power supply, avoid production shutdown, equipment damage and economic losses, and provide reliable heavy-duty power guarantee for industrial production.

3.2 Municipal Key Public Infrastructure

This 812.5kVA diesel generator set is the core emergency power supply equipment for large data centers, communication hub base stations, tertiary hospitals, airport and railway supporting facilities, and municipal emergency engineering. Key public infrastructure has zero tolerance for power interruption. Sudden power failure will lead to data loss, medical rescue stagnation, public facility paralysis and other serious consequences. The unit features quick start and seamless power switching, which can continuously supply stable power for precision medical instruments, server room systems, monitoring equipment and public service facilities, ensuring the stable operation of urban key infrastructure.

3.3 Large Commercial Complex and Super High-Rise Buildings

It is widely used in large shopping malls, commercial complexes, super high-rise office buildings and large-scale residential communities. As a standard fire emergency and backup power supply equipment that complies with national building fire safety acceptance standards, it can start instantly in case of grid power failure, planned power maintenance and peak power limitation. It stably supplies 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, and meeting the power guarantee needs of large commercial buildings.

3.4 Off-Grid Field Engineering and Special Scenarios

For remote road and bridge construction sites, new energy project bases, large-scale breeding parks, field operation teams and military engineering without stable municipal grid coverage, this 50Hz Yuchai diesel generator set can be used as the main power supply equipment. Relying on excellent dust-proof, splash-proof and high-temperature resistance performance, it can operate stably in harsh outdoor environments such as high temperature, dust and humidity, providing continuous and stable power for field construction machinery, living supporting equipment and professional production facilities, solving the power supply blank problem of off-grid engineering projects.

4. Core Product Uses

As a high-power heavy-duty industrial generator set of Yuchai TH series, the YC6TH1070-D31 unit focuses on emergency power backup, off-grid continuous power supply, grid peak shaving and special scenario all-weather power guarantee, which can flexibly meet the diversified high-standard power demand of industrial and commercial users.

4.1 Municipal Grid Emergency Standby Power Supply

This is the most mainstream application of the 650kW prime power diesel generator set. In daily operation, the unit keeps hot standby state. Once the municipal power grid fails, trips or undergoes planned overhaul, the equipment can start quickly and complete seamless power switching in a short time. It focuses on protecting core production equipment and key public facilities, effectively avoiding safety accidents and economic losses caused by sudden power interruption, and providing reliable emergency power support for various high-demand scenarios.

4.2 Long-Term Off-Grid Main Power Supply

In remote areas, field operation sites and industrial zones with insufficient grid capacity and unstable voltage, the 812.5kVA continuous stable power output can be used as long-term main power supply. With excellent continuous operation stability and strong load resistance, it can support 24-hour uninterrupted operation of production and living equipment, completely replacing municipal grid power supply, and fully meeting the long-term high-power consumption demand of off-grid engineering and production scenarios.

4.3 Power Grid Peak Shaving and Voltage Stabilization

In industrial areas with tight grid power supply and obvious peak power shortage, the unit can assist the municipal grid in 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 power consumption.

4.4 All-Weather Power Guarantee for Special Industries

Relying on H-grade high-temperature resistance insulation and IP23 high protection grade, the unit adapts to various harsh working conditions. It can provide professional power guarantee for municipal emergency rescue, national defense engineering, large-scale event power guarantee and industrial breeding industries, realizing all-weather and full-scene stable power output, and meeting the high-reliability power demand of special industry scenarios.

5. Common FAQ

Q1: What is the difference between prime power and standby power of YC6TH1070-D31 generator set in actual application?

The 650kW/812.5kVA prime power is continuous rated power, supporting long-term full-load stable operation, and is suitable for daily off-grid main power supply and long-time continuous load operation. The 710kW/887.5kVA standby power is emergency peak power, only used for short-time power supply when the municipal grid fails. According to industry specifications, the cumulative annual use time of standby power shall not exceed 500 hours, and long-term full-load operation is prohibited. Frequent overuse of standby power will accelerate engine mechanical wear, increase equipment failure rate and significantly shorten the overall service life of the generator set.

Q2: What are the practical advantages of the brushless self-excited alternator equipped on this Yuchai generator set?

Different from traditional brushed alternators, the brushless self-excited structure cancels carbon brushes and slip ring friction components, fundamentally eliminating mechanical wear, electric spark and electromagnetic interference during operation. In actual use, it has lower failure rate and higher operation safety, and will not interfere with precision instruments and communication equipment. Meanwhile, it greatly reduces daily maintenance workload, no need for frequent carbon brush inspection and replacement, only regular dust cleaning and oil circuit inspection are required, which effectively saves users’ later operation and maintenance time and economic cost.

Q3: How to effectively control and reduce the fuel consumption of YC6TH1070-D31 650kW diesel generator set during daily operation?

First, avoid long-term no-load idle and light-load operation, and keep the unit operating load stable at 60%-80% of rated power, which is the most energy-efficient working range for this high-power TH series unit. Second, regularly replace air filters, diesel filters and oil filters to ensure sufficient air intake and full fuel combustion. Third, regularly check the twin-turbocharged intercooled system and cooling system to avoid power attenuation and increased fuel consumption caused by poor heat dissipation and insufficient air intake. In addition, using qualified standard diesel oil and special lubricating oil can effectively optimize combustion efficiency and reduce comprehensive operating fuel consumption.