50HZ SDEC 6ETAA11.8-G31 375kVA/300kW Diesel Generator Set

50HZ SDEC  375kVA/300kW Diesel Generator Set

1. Technical Parameter

2. Core Product Features

The SDEC 6ETAA11.8-G31 300kW/375kVA diesel generator set is a heavy-duty industrial power unit built on SDEC mature E-series industrial engine platform. As a popular 375kVA SDEC diesel generator set for medium and large high-load power supply projects, this unit adopts 11.8L large-displacement turbocharged intercooled design and six-cylinder inline industrial structure. It delivers sufficient power reserve, strong overload resistance and stable long-hour continuous operation performance, perfectly solving the power attenuation and unstable output problems of ordinary medium-power gensets under long-term full-load working conditions.

In terms of power performance, the genset is equipped with genuine SDEC 6ETAA11.8-G31 generator-dedicated engine with a gross power up to 340kW, providing adequate power redundancy for daily heavy-load operation. The rated prime power reaches 300kW, and the maximum emergency standby power can reach 330kW. As a high-stability 300kW prime power diesel generator, it supports 24-hour uninterrupted full-load operation and can withstand frequent sudden load impact changes. Matched with high-precision electronic speed control technology, the unit maintains extremely low frequency and voltage fluctuation during operation. The pure and stable power output effectively protects high-power industrial equipment and precision electrical instruments from damage caused by power jitter, ensuring continuous and stable production and operation.

In terms of operational safety and environmental adaptability, the unit is fitted with a mature brushless self-excited alternator, which abandons the traditional carbon brush contact friction structure. This practical structural upgrade eliminates electric spark safety hazards and frequent carbon brush wear failures, greatly reducing daily failure rates and improving overall operational safety. With H-grade high-temperature resistant insulation material and IP23 dust-proof and rain-proof protection grade, this 413kVA standby diesel generator can operate stably in various harsh working environments, including dusty industrial workshops, humid outdoor construction sites and high-temperature enclosed operation areas. It supports reliable cold start at -15℃ without auxiliary heating equipment, adapting to winter low-temperature construction in northern regions and long-term outdoor fixed power supply scenarios, with outstanding environmental tolerance superior to ordinary medium and high-power generator sets.

In terms of structural durability and operational economy, the SDEC 6ETAA11.8-G31 industrial engine has passed strict industrial durability tests and long-term market verification. The optimized mechanical direct injection fuel system ensures full fuel combustion under heavy load, with full-load fuel consumption stably controlled at 81.2L/H, maintaining a balanced energy-saving level for 375kVA-class heavy-duty industrial gensets. The whole machine adopts reinforced body structure and standardized integrated pipeline layout, effectively reducing oil leakage, air leakage and water leakage risks. The 1165kg lightweight engine design ensures compact installation and convenient daily inspection and maintenance. Supported by SDEC’s complete nationwide after-sales service system and universal spare parts configuration, the unit greatly lowers long-term operation and maintenance costs for enterprise users and engineering projects.

In terms of functional scalability and intelligent upgrade, the genset supports diversified customized configurations to meet different scenario demands. The optional silent canopy can effectively reduce operating noise, complying with urban environmental protection noise standards and suitable for construction projects near residential areas and commercial zones. The customized weatherproof enclosure enables long-term outdoor unattended fixed installation. Equipped with an ATS automatic transfer switch, the unit can realize unmanned automatic start-stop and seamless switching between municipal power and generator power. The optional remote monitoring module supports real-time viewing of operating data and active fault alarm, greatly improving the intelligent level and power guarantee reliability of the equipment.

3. Main Application Scenarios

Relying on excellent heavy-load resistance, stable long-hour continuous operation and strong environmental adaptability, theSDEC 6ETAA11.8-G31 diesel generator set is widely applied in heavy industrial production, large-scale infrastructure engineering, key public facilities, mining operations and emergency power guarantee fields, serving as the core power supply equipment for large-scale high-load power demand scenarios.

Heavy Industrial Production Scenarios: It is commonly used as continuous prime power and emergency standby power for large manufacturing factories, heavy machinery processing bases, chemical industrial parks and large mining enterprises. The stable 300kW prime power output fully meets the long-term operation demands of high-power production lines, forging and stamping equipment, mechanical processing units and industrial electrical systems. It can serve as the main off-grid power source for remote industrial zones and backup power for grid-connected key enterprises, effectively avoiding large-scale production shutdown and massive economic losses caused by sudden mains power failure or voltage fluctuation.

Key Public & Commercial Facility Scenarios: This high-power industrial genset provides critical emergency power guarantee for large shopping malls, super high-rise office buildings, star hotels, municipal hospitals, medium and large data centers and urban traffic hubs. These key public and commercial scenarios have extremely high requirements for power supply continuity and safety. In case of municipal power grid failure, seasonal power rationing or routine power grid maintenance, the unit can start quickly and complete seamless power switching, ensuring the normal operation of elevators, medical precision instruments, fire protection systems, monitoring equipment and server room facilities, and safeguarding public safety and stable commercial operation.

Large-Scale Infrastructure Engineering Scenarios: It is the mainstream temporary power supply equipment for highway reconstruction, bridge engineering, water conservancy projects, railway construction and municipal infrastructure upgrading. Benefiting from IP23 dust and rain resistance, low-temperature startup performance and strong anti-load impact capability, the unit can adapt to complex and harsh outdoor construction environments, providing stable and lasting power support for heavy construction machinery, on-site lighting and temporary living and office facilities.

Field Operation & Emergency Rescue Scenarios: It is perfectly applicable to off-grid power supply for remote field exploration bases, large logistics parks, communication base station clusters and pastoral mining areas. Meanwhile, it can be used as emergency power supply for natural disaster rescue, power grid emergency maintenance and sudden regional power outage accidents, providing reliable continuous high-power power guarantee for field operations and emergency disposal work.

4. Core Product Purposes

As a professional heavy-duty high-power industrial diesel generator set, the core purpose of the 6ETAA11.8-G31 SDEC diesel generator is to provide stable, efficient and low-failure full-scenario high-power power guarantee for large industrial and engineering high-load scenarios, covering three core functional positioning: off-grid main power supply, grid-connected emergency standby power supply and power peak shaving.

Firstly, it acts as off-grid prime power supply equipment. For remote construction bases, mining areas, field operation teams and industrial zones without complete municipal power grid coverage, the 300kW/375kVA high-power output serves as the long-term main power source to provide 24-hour uninterrupted power supply for large production equipment, living facilities and office systems. Its durable 11.8L large-displacement engine structure and stable fuel supply system support long-term continuous operation, solving the high-power power shortage problem of large-scale off-grid projects.

Secondly, it undertakes grid-connected emergency standby power supply for key industries and units. For industrial manufacturing enterprises, medical institutions, data centers and public service facilities that cannot tolerate power interruption, the genset acts as an essential backup power source for the municipal power grid. In case of unexpected power failure, power grid faults or seasonal power rationing, it can quickly take over full load operation to ensure uninterrupted operation of core production and service equipment, avoiding safety accidents and massive economic losses caused by power outages.

Thirdly, it functions as an effective power peak shaving device for enterprise power consumption. During peak periods of regional power grid tension and insufficient power supply, the genset can independently bear part of the high-load production power demand, relieve enterprise power consumption pressure, prevent production stagnation caused by power grid power limits, and ensure continuous and stable progress of large-scale production and operation tasks.

5. Common FAQ

Q1: What is the actual usage difference between prime power and standby power of the 6ETAA11.8-G31 generator set?

A1: The 300kW/375kVA prime power refers to the rated continuous operating power of the genset, supporting 24-hour long-term uninterrupted operation and suitable for daily off-grid main power supply and long-term fixed high-load industrial operation. The 330kW/413kVA standby power is short-time emergency peak power, which is about 10% higher than the prime power. It is only designed for temporary emergency power supply after mains power failure and is prohibited from long-term full-load operation. In actual on-site engineering use, professional operators recommend controlling the conventional operating load within 80% to 90% of the prime power to reduce engine operating load, avoid excessive mechanical wear and extend the overall service life of the genset.

Q2: What practical advantages does the brushless self-excited alternator bring to this 375kVA SDEC genset?

A2: This heavy-duty industrial diesel generator adopts a high-performance brushless self-excited alternator, which has obvious practical advantages over traditional brushed alternators. It completely eliminates carbon brush wear, friction sparks and contact failure problems during high-load operation, greatly improving operational safety and reducing daily failure rates. Matched with H-grade super heat-resistant insulation and IP23 dust-proof and rain-proof protection standard, it can resist high temperature, dust and moisture erosion effectively. The output voltage and frequency waveform is stable and clean, causing no impact damage to precision instruments and high-power industrial equipment. Meanwhile, it realizes nearly maintenance-free daily operation, saving a large amount of manual maintenance time and vulnerable part replacement costs for users.

Q3: What is the fuel consumption level and standard maintenance cycle of the 6ETAA11.8-G31 genset?

A3: The full-load fuel consumption of the unit is 81.2L/H, which is a stable and reasonable fuel consumption level for heavy-duty 375kVA–413kVA industrial generator sets, fully matching long-term high-power continuous operation requirements. For daily maintenance, users only need to regularly check fuel stock, cooling water level, pipeline tightness and unit operating sound. Routine maintenance including engine oil replacement, filter element replacement and radiator dust cleaning is required every 200 operating hours. A comprehensive equipment inspection, component fastening and overall overhaul is recommended every 1000 operating hours. Benefiting from the mature SDEC E-series turbocharged engine technology and optimized brushless alternator structure, the unit features stable performance and lower comprehensive operation and maintenance costs than ordinary high-power gensets.