50HZ SDEC 6ETAA11.8-G21 350kVA/280kW Diesel Generator Set

50HZ SDEC 6ETAA11.8-G21 350kVA/280kW Diesel Generator Set

1. Technical Parameter

2. Core Product Features

The SDEC 6ETAA11.8-G21 280kW/350kVA diesel generator set is a high-power heavy-duty industrial genset tailored for high-load continuous operation scenarios. As a mainstream 350kVA SDEC diesel generator set in the medium and high-power genset market, this unit adopts SDEC mature E-series 11.8L large-displacement engine technology, with six-cylinder inline four-valve structure and turbocharged intercooled intake system. It features sufficient power reserve, strong load impact resistance and stable long-hour operation performance, solving the problems of insufficient power and easy shutdown of ordinary gensets under heavy load, and is widely favored in industrial and engineering power supply fields.

In terms of power performance, the genset is equipped with genuine SDEC 6ETAA11.8-G21 generator-dedicated engine with a gross power up to 352kW, providing abundant power redundancy for the whole unit. The rated prime power reaches 280kW, and the maximum emergency standby power can reach 300kW. As a high-reliability 280kW prime power diesel generator, it can withstand 24-hour long-term full-load operation and frequent sudden load changes. The matched high-precision electronic governor effectively controls speed fluctuation, ensuring ultra-stable voltage and frequency output. The power quality is clean and reliable, which can perfectly adapt to the power demand of high-power industrial equipment and precision electrical instruments, avoiding production suspension and equipment damage caused by power instability.

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 structure. This optimized design eliminates electric spark hidden dangers and frequent carbon brush wear faults, greatly reducing daily failure rate and improving operational safety. With H-grade high-temperature resistant insulation material and IP23 dust-proof and rain-proof protection grade, this 375kVA standby diesel generator can operate stably in various harsh working environments such as dusty workshops, humid outdoor sites and high-temperature operation areas. It supports reliable cold start at -15℃ without auxiliary heating equipment, perfectly 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 gensets.

In terms of structural durability and operating economy, the SDEC 6ETAA11.8-G21 industrial engine has passed strict industrial durability tests and long-term market verification. The reasonable firing order design and optimized fuel injection system make fuel combustion more sufficient, with full-load fuel consumption stably controlled at 73.3L/H, maintaining a balanced level of high power output and energy-saving performance. The whole machine adopts reinforced body structure and standardized integrated pipeline layout, effectively reducing oil leakage, air leakage and water leakage risks. The engine dry weight is 1165kg, with compact and reasonable overall layout, convenient installation and maintenance. The universal parts design and complete nationwide after-sales service system greatly reduce daily maintenance difficulty and long-term operation costs for users.

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

With excellent heavy-load resistance, stable long-hour continuous operation and strong environmental adaptability, the SDEC 6ETAA11.8-G21 diesel generator set is widely applied in heavy industrial production, large-scale infrastructure engineering, key public facilities, mining operations and emergency power guarantee fields, becoming the core power supply equipment for medium and large 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, industrial parks and mining enterprises. The stable 280kW prime power output fully meets the long-term operation demands of high-power production lines, forging 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 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-sized 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 preferred temporary power supply equipment for highway reconstruction, bridge engineering, water conservancy projects, municipal infrastructure upgrading and large outdoor construction sites. 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-G21 SDEC diesel generator is to provide stable, efficient and low-failure full-scenario high-power power guarantee for 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 280kW/350kVA 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 four-valve engine structure and stable fuel supply system support long-term continuous operation, solving the high-power power shortage problem of off-grid large-scale 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-G21 generator set?

A1: The 280kW/350kVA prime power is 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 300kW/375kVA 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 not allowed for 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 wear and extend the overall service life of the genset.

Q2: What practical advantages does the brushless self-excited alternator bring to this 350kVA SDEC genset?

A2: This industrial diesel generator is equipped with 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-G21 genset?

A3: The full-load fuel consumption of the unit is 73.3L/H, which is a reasonable and stable fuel consumption level for heavy-duty 350kVA–375kVA 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 four-valve engine technology and optimized brushless alternator structure, the unit features stable performance and lower comprehensive operation and maintenance costs than ordinary high-power gensets.