50HZ Yuchai YC6TD840-D31 500kW/625kVA Diesel Generator Set

50HZ Yuchai   500kW/625kVA Diesel Generator Set

1. Technical Parameters 

2. Core Product Features

The Yuchai YC6TD840-D31 500kW/625kVA diesel generator set is a mainstream medium-large industrial power generation equipment launched based on Yuchai mature TD series power platform. As a hot-selling 50Hz industrial diesel generator set in the market, it focuses on high load capacity, stable continuous power supply and low comprehensive failure rate, perfectly matching the long-term power consumption and emergency backup power demands of large industrial and commercial scenarios. It has become a preferred power guarantee equipment for many engineering projects and enterprise factories.

2.1 Strong Power Output and Excellent Load Adaptability

Equipped with original Yuchai YC6TD840-D31 dedicated power engine, this unit supports 500kW long-term stable prime power output and 550kW short-time emergency standby power output. The 6-cylinder turbocharged intercooled structure brings strong power reserve and excellent transient load response performance, which can quickly adapt to sudden load increase and peak power demand changes. The 50Hz fixed frequency and stable three-phase voltage output effectively avoid voltage flicker and frequency deviation, ensuring the safe and stable operation of precision instruments, large mechanical equipment and full-load production lines. It solves the common power supply instability problems of medium and large power consumption scenarios and is far superior to ordinary small and medium power generator sets in load bearing capacity.

2.2 Optimized Fuel Economy and Low Operating Cost

Adopting electronic direct injection combustion technology and optimized air intake structure, the full-load fuel consumption of this 625kVA diesel generator set is controlled at 143.2L/H, achieving a good balance between power output and energy-saving performance in the 500kW-class industrial generator industry. The precisely calibrated fuel supply system improves fuel combustion efficiency, reduces ineffective fuel waste, and greatly lowers the long-term operating fuel cost for enterprises. In addition, the unit adopts a standardized serialized structure with high parts versatility, which effectively reduces later maintenance and replacement costs, bringing lower comprehensive operation and maintenance expenses compared with peer products.

2.3 High Safety Grade and Super Durability

Matched with high-quality brushless self-excited alternator, the unit abandons the traditional carbon brush friction structure, fundamentally reducing mechanical wear and failure probability during operation, with no spark interference and higher operational safety. The H-grade high-temperature resistant insulation material can withstand long-term high-load and high-temperature working conditions, effectively preventing insulation aging, breakdown and leakage faults. The IP23 professional protection grade can effectively block external dust, debris and splash rainwater, adapting to complex working environments such as open-air workshops, construction sites and outdoor machine rooms. The engine body adopts high-strength cast iron material and one-cylinder-one-head structural design, which has passed long-duration durability bench tests, with stable mechanical performance and long service life.

2.4 Intelligent Protection and Convenient Maintenance

This Yuchai 550kW standby diesel generator set is equipped with a complete intelligent monitoring and protection system, integrating overvoltage, undervoltage, overload, over speed, high water temperature, low oil pressure and automatic shutdown protection functions. It can real-time monitor the unit operating status, automatically alarm and cut off power in case of faults, avoiding equipment burnout and circuit safety accidents. The reasonable structural layout simplifies daily inspection and maintenance procedures. Users can quickly complete filter replacement, oil inspection and circuit debugging, without complicated professional operation, which greatly improves the convenience of daily equipment management and later maintenance.

3. Main Application Scenarios

With the advantages of high power, stable operation and strong environmental adaptability, YC6TD840-D31 Yuchai diesel generator set is widely used in industrial production, municipal infrastructure, commercial supporting, field engineering and other fields. It can be used as both main continuous power supply and emergency backup power supply, covering most medium and large power consumption scenarios that require high power supply stability.

3.1 Industrial Factory and Mining Industry

It is the core power guarantee equipment for large processing factories, manufacturing workshops, industrial parks and mining enterprises. For industrial enterprises with large power consumption and high requirements for power supply continuity, the 500kW prime power can support long-term operation of production lines, mechanical processing equipment and supporting facilities. When the municipal grid is cut off, the 550kW high-power standby performance can quickly take over the power supply, avoid production shutdown, equipment shutdown and economic losses, and solve the power supply risks of industrial production scenarios.

3.2 Municipal and Public Infrastructure

The unit is widely used in hospital emergency power supply, data center backup power, communication base station power guarantee, municipal engineering, school and public building power supply projects. These scenarios have zero tolerance for power interruption, and sudden power failure will lead to serious public safety risks and data loss. This 625kVA diesel generator set can realize quick start and seamless power switching, continuously supply power for medical rescue equipment, server room equipment, monitoring systems and public service facilities, and ensure the normal operation of urban public infrastructure.

3.3 Commercial Real Estate and Building Supporting

It is applicable to high-rise office buildings, large shopping malls, commercial complexes and high-grade residential communities as standard emergency power equipment. In case of grid maintenance, peak power limitation and sudden power outage, the unit can supply power for fire control linkage systems, building elevators, emergency lighting, weak current systems and security monitoring equipment, ensure building fire safety and personnel evacuation safety, and meet the national building fire power supply acceptance standards.

3.4 Field Engineering and Off-Grid Scenarios

For remote construction sites, road and bridge engineering, new energy project sites, pasture and breeding bases without stable municipal grid coverage, this Yuchai 50Hz diesel generator set can be used as the main power supply equipment. It adapts to harsh outdoor working environments such as high temperature, dust and humidity, and stably provides continuous power for field construction machinery, living supporting equipment and professional production facilities, solving the power supply blank problem of off-grid engineering scenarios.

4. Core Product Uses

Positioned as a high-power industrial diesel generator set, YC6TD840-D31 Yuchai unit focuses on emergency backup power, off-grid main power supply, grid peak shaving and stable power guarantee, and can flexibly respond to various complex power consumption demands of industrial and commercial users.

4.1 Emergency Standby Power Supply

This is the most mainstream use of this 500kW diesel generator set. In daily operation, the unit is in standby state. Once the municipal power grid fails, trips or is overhauled, the equipment can start quickly and switch to emergency power supply mode within a short time. It focuses on protecting key equipment and core production links in factories, hospitals, buildings and data centers, effectively avoiding safety accidents and economic losses caused by sudden power interruption.

4.2 Long-term Continuous Main Power Supply

In remote areas, field operation sites and industrial zones with insufficient grid capacity and unstable voltage, the 625kVA prime power output can be used as long-term continuous main power supply. With stable power output and reliable continuous operation capability, it can support 24-hour uninterrupted operation of production and living equipment, fully meet the daily power consumption demand of medium and large off-grid power consumption scenarios, and is a reliable substitute for municipal grid power supply.

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 the peak power consumption period, it can output power to supplement the grid power shortage, stabilize grid voltage and 50Hz frequency, suppress power fluctuation and voltage drop, protect precision electrical equipment from damage caused by unstable power supply, and improve the overall stability of regional power consumption.

4.4 Special Industry Custom Power Guarantee

Relying on IP23 high protection grade and H-grade insulation performance, the unit can adapt to high temperature, humid and dusty harsh working conditions, and provides professional power guarantee for special scenarios such as municipal emergency rescue, national defense engineering, large-scale event guarantee and industrial breeding. It realizes all-weather, full-scene stable power supply and meets the high-standard power demand of special industries.

5. Common FAQ

Q1: What is the practical difference between prime power and standby power of YC6TD840-D31 generator set?

The 500kW/625kVA prime power refers to the continuous adjustable power that allows long-term full-load operation, which is suitable for daily continuous power supply and long-time load operation scenarios. The 550kW/687.5kVA standby power is emergency peak power, only used for short-time power supply when the municipal grid fails. According to industry standards, the cumulative annual use time of standby power shall not exceed 500 hours, and long-term full-load operation is prohibited. Excessive use of standby power will accelerate engine wear, increase failure rate and shorten the overall service life of the unit.

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

Compared with traditional brushed alternators, the brushless self-excited structure cancels carbon brushes and slip rings, eliminating mechanical friction wear and electric spark faults fundamentally. In actual use, it has lower failure rate, no electromagnetic interference, and is more suitable for scenarios with precision equipment and flammable materials. Meanwhile, it greatly reduces daily maintenance work, no need to frequently check and replace carbon brushes, only regular dust cleaning and oil circuit inspection are required, which effectively saves later operation and maintenance time and cost for users.

Q3: How to control and optimize the fuel consumption of 500kW YC6TD840-D31 diesel generator set?

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