50Hz 720kW/900kVA Weichai 12M26D902E200 Diesel Generator Set

50Hz Weichai 720kW/900kVA Diesel Generator Set
1. Full Technical Parameter Table
This chapter lists the complete and official technical parameters of the 50Hz 720kW/900kVA Weichai 12M26D902E200 diesel generator set, including unit overall performance data, supporting diesel engine parameters, alternator configuration and universal operating indicators. All data is based on factory standard calibration, which is applicable for industrial power project selection, equipment bidding parameter filling and daily operation management of high-power diesel generator sets.
Parameter Category | Specific Item | Technical Data |
Overall Generator Set Parameters | Rated Frequency | 50Hz |
Prime Power (Continuous Power) | 720kW/900kVA | |
Standby Power (Emergency Power) | 800kW/1000kVA | |
Rated Voltage | 400V/230V, 3-phase 4-wire | |
Power Factor | 0.8 (lagging) | |
Rated Speed | 1500r/min | |
Full-load Fuel Consumption | 198L/H (100% rated load) | |
Unit Working Mode | Continuous main power / Emergency standby power | |
Standard Configuration Type | Open type / Optional silent & container type | |
Weichai Diesel Engine Parameters | Engine Brand | Weichai Power (Original Factory) |
Engine Model | 12M26D902E200 | |
Engine Structure | V-type 12-cylinder, four-stroke, turbocharged & intercooled | |
Bore × Stroke | 150mm × 150mm | |
Displacement | 19.6L | |
Emission Standard | China National Stage II | |
Speed Regulation Mode | Electronic governing | |
Starting System | 24V DC electric start | |
Cooling Method | Closed-loop water cooling | |
Fuel Type | Common industrial diesel | |
Alternator Technical Parameters | Excitation Type | Brushless, self-excited |
Insulation Class | H Grade | |
Protection Grade | IP23 | |
Voltage Regulation System | Automatic AVR voltage regulation |
2. Product Features
The Weichai 12M26D902E200 720kW/900kVA diesel generator set is a high-power industrial power generation equipment independently developed and calibrated by Weichai Power, which belongs to the mature 12M26 series heavy-duty power generation unit in the medium and high-power market. This 900kVA diesel generator set is widely recognized in the industry for its strong power reserve, stable continuous operation performance and low comprehensive operation cost, and is a mainstream model for industrial main power supply and large-scale emergency standby power supply.
In terms of power performance, the unit is equipped with a V-type 12-cylinder turbocharged intercooled diesel engine, with sufficient power torque output and strong load impact resistance. The rated prime power reaches 720kW for long-term continuous operation, while the 800kW/1000kVA standby power provides reliable peak power guarantee for sudden load surge and grid failure scenarios. Matching with high-precision brushless self-excited alternator and AVR automatic voltage regulation device, the unit maintains ultra-low fluctuation of voltage and frequency under 50Hz rated working condition, effectively adapting to precision industrial equipment, large mechanical equipment and intelligent power consumption systems with high power supply quality requirements.
In terms of operating economy, the optimized fuel injection calibration and combustion structure greatly improve fuel utilization efficiency. The full-load fuel consumption is stably controlled at 198L/H, which has obvious energy-saving advantages compared with other 900kVA diesel generator sets of the same power level. The electronic speed governing system can intelligently adjust engine operating speed according to actual load changes, avoid ineffective fuel consumption under light load and no-load conditions, and effectively reduce long-term fuel operation cost for enterprises and engineering projects.
In terms of safety and environmental adaptability, the alternator adopts H-grade high-temperature resistant insulating materials, which can resist long-term high-load operation heat accumulation and harsh ambient temperature changes, with excellent insulation aging resistance and electrical safety performance. The IP23 professional protection grade can effectively block external dust, rain splash and solid particle impurities, protect internal circuits and mechanical structures from damage, and ensure stable operation in outdoor construction sites, mining areas, industrial parks and other complex working environments. The closed-loop water cooling system realizes uniform and efficient heat dissipation of the 12-cylinder high-power engine, completely avoiding overheating shutdown failure during long-hour uninterrupted operation.
In terms of maintenance and practicability, the brushless self-excited structure eliminates traditional carbon brush wearing, spark failure and regular replacement maintenance, greatly reducing equipment failure rate and daily maintenance workload. The 24V DC electric start system supports one-key quick start and automatic switching operation, which can realize unattended standby operation for a long time. The overall structural layout of the unit is compact and reasonable, with strong structural stability, convenient on-site installation, commissioning and daily inspection, and can meet the long-term continuous operation needs of various industrial scenarios.
3. Application Scenarios
As a high-performance 50Hz 720kW industrial diesel generator set, the Weichai 12M26D902E200 900kVA diesel generator set has wide applicability, covering industrial production, engineering construction, public infrastructure, special industry power supply and other fields. It can serve as both continuous main power supply and emergency standby power supply, and adapt to various harsh and high-standard power consumption scenarios.
Heavy Industrial Production Scenarios: It is widely used in large manufacturing factories, chemical plants, mining enterprises, metallurgical plants and industrial parks. Heavy industrial production equipment has large power load and high requirements for power supply continuity. This 900kVA Weichai generator set can be used as a long-term main power supply for off-grid industrial zones or a backup power supply for grid-connected factories, effectively avoiding production shutdown, equipment shutdown and economic losses caused by sudden grid power failure, and ensuring the stable operation of industrial production lines all year round.
Large-scale Engineering Construction Scenarios: It is the preferred power supply equipment for municipal engineering, road and bridge construction, railway engineering, water conservancy projects and field construction operations. Most outdoor construction sites lack stable municipal grid power, and the 720kW high stable power output can simultaneously support the operation of multiple large construction machinery, lifting equipment, mixing equipment and on-site living supporting facilities. With dust-proof and splash-proof protection performance and strong environmental adaptability, the unit can operate stably in outdoor high temperature, dust and complex terrain environments.
Public & Commercial Facility Scenarios: It is suitable for large shopping malls, comprehensive commercial buildings, high-rise office buildings, star hotels, tertiary hospitals and large campus facilities. These public places involve a large number of people and key electromechanical equipment such as elevators, fire protection systems, ventilation systems and medical equipment. In case of grid power failure, the Weichai 12M26D902E200 generator set can start quickly to provide emergency power guarantee, ensure the normal operation of key facilities, avoid public safety risks and property losses, and meet the emergency power supply standards of large public buildings.
Special Industry & Remote Area Power Supply: The unit is applicable to communication base station clusters, industrial data centers, island operation bases, remote mountainous areas and pastoral areas without municipal grid coverage. For special industries such as communication and data centers that require 24-hour uninterrupted power supply, the low failure rate and long continuous operation cycle of the unit can effectively prevent communication interruption and data loss caused by power failure. For remote off-grid areas, it can be used as a stable main power supply to solve the problem of insufficient power supply for production and living.
4. Core Purpose
The core purpose of the Weichai 12M26D902E200 720kW/900kVA diesel generator set is to provide stable, efficient and durable uninterrupted power support for medium and large power consumption scenarios, solving the problems of insufficient off-grid power supply and unsafe grid-connected power backup, and is a high-cost-performance power guarantee solution for industrial and commercial high-power power consumption.
For off-grid areas, field engineering operations and independent industrial zones without municipal grid coverage, this 900kVA diesel generator set acts as a continuous main power supply unit. Relying on 720kW long-term stable prime power output and strong load-bearing capacity, it meets the all-weather power demand of industrial production, engineering construction and regional living facilities, and provides stable and reliable power source for long-term off-grid operation of projects.
For urban grid-connected industrial and commercial places, the unit is positioned as a high-standard emergency standby power supply. When the municipal grid fails, trips or has voltage instability, the generator set can realize automatic start and fast switching, instantly supplement power supply, ensure the uninterrupted operation of core production equipment and key public facilities, effectively reduce enterprise operation risks and public safety hidden dangers caused by power failure, and improve the anti-risk capability of project operation.
In addition, relying on Weichai’s mature engine technology and optimized brushless alternator configuration, the unit realizes the dual advantages of low fuel consumption and low maintenance cost. It can adapt to long-term unattended continuous operation, reduce manual operation and maintenance investment, and provide economical and stable power supply guarantee for various medium and high-power power consumption scenarios. It is one of the most practical and reliable high-power diesel generator sets in the current industrial power generation market.
5. FAQ – Common Frequently Asked Questions
Q1: What is the actual usage difference between prime power and standby power of the 720kW/900kVA Weichai generator set?
Prime power (720kW/900kVA) is the continuous usable power of the generator set, supporting long-term 24-hour uninterrupted operation under rated load, which is the standard power for daily main power supply scenarios. Standby power (800kW/1000kVA) is emergency peak power, which is only used for short-time power supplement during grid failure or sudden load increase. It cannot run under standby load for a long time, otherwise it will accelerate engine wear and shorten unit service life. In actual project matching, we recommend configuring load within 80% of prime power to ensure long-term stable operation of the unit.
Q2: What are the core advantages of Weichai 12M26D902E200 engine compared with ordinary high-power generator engines?
The 12M26D902E200 engine is a special power generation engine customized by Weichai for medium and high-power generator sets. Adopting V-type 12-cylinder turbocharged intercooled design, it has more sufficient power reserve and stronger load impact resistance than inline engines of the same power. With national second-stage emission standard, it has stable combustion performance and lower full-load fuel consumption. Matched with H-grade insulation brushless alternator and IP23 protection structure, the whole set has better high temperature resistance, dust resistance and environmental adaptability. Meanwhile, the brushless excitation design reduces mechanical failure points, making daily operation more stable and maintenance simpler than traditional brushed generator sets.
Q3: What working environment is suitable for this 900kVA diesel generator set, and what are the daily maintenance key points?
This Weichai 720kW generator set is suitable for indoor factory buildings, outdoor construction sites, mining areas, commercial supporting facilities and other conventional industrial environments, adapting to ambient temperature from -20℃ to 45℃ and dusty and splash-proof working conditions. For daily maintenance, users only need to regularly check diesel quantity, engine oil level and cooling water capacity, clean the radiator and air filter dust regularly, and replace filter elements and lubricating oil according to operating hours. Thanks to the brushless structure, there is no need to replace carbon brushes regularly, which greatly reduces the later maintenance cost and maintenance cycle of the equipment.

