60Hz SDEC 6ETAA11.8-G21 280kW/350kVA Diesel Generator Set

60Hz SDEC 280kW/350kVA Diesel Generator Set
1. Technical Parameter
Parameter Item | Technical Data |
Unit Model | SDEC 6ETAA11.8-G21 Diesel Generator Set |
Rated Frequency | 60Hz |
Prime Power (kW/kVA) | 280kW / 350kVA |
Standby Power (kW/kVA) | 310kW / 387.5kVA |
Rated Speed | 1800RPM |
Rated Voltage | 400/230V Three-phase Four-wire |
Rated Power Factor | 0.8 Lagging |
Full Load Fuel Consumption | 73.7L/H (100% Constant Load) |
Engine Brand | SDEC (Shanghai Diesel Engine) |
Engine Model | 6ETAA11.8-G21 |
Engine Structure | 6-Cylinder In-line, 4-Stroke, Water-cooled, Turbocharged & Intercooled |
Bore × Stroke | 128mm × 153mm |
Displacement | 11.8L |
Combustion Mode | Direct Injection |
Governing Mode | Electronic Speed Governing |
Engine Dry Weight | 1165kg |
Alternator Type | Brushless Self-excited Synchronous Alternator |
Insulation Grade | H Grade |
Protection Grade | IP23 |
Starting Mode | 24V Electric Starting |
Emission Standard | Non-road Stage II Emission Standard |
2. Product Features
The SDEC 6ETAA11.8-G21 280kW/350kVA 60Hz diesel generator set is a heavy-duty high-power power generation device built on SDEC mature E-series engine platform. Optimized with turbocharged intercooled technology and precision direct injection combustion system, this 350kVA 60Hz diesel generator set delivers strong power reserve, stable full-load operation and outstanding environmental adaptability. After long-term market verification, it has low failure rate and high cost performance, becoming a mainstream choice for high-power industrial standby power and overseas engineering power supply.
In terms of power performance, this SDEC heavy-duty diesel generator features 11.8L large displacement and professional turbocharging technology, supporting 280kW prime power long-term continuous operation and 310kW standby power emergency peak output. The matched 1800RPM rated speed perfectly fits global 60Hz power grid standards. It maintains stable frequency and voltage output even under long-term full-load and variable-load working conditions, effectively resisting instantaneous power impact from large mechanical equipment, with no obvious power attenuation during long-hour operation.
In terms of operation and maintenance advantages, the unit is equipped with a high-performance brushless self-excited alternator. Different from traditional brushed generators, it cancels carbon brush contact structure, eliminating common faults such as carbon brush wear, poor contact and spark ignition. It realizes long-term maintenance-free operation of the power generation core, greatly reducing daily maintenance workload and later operating costs. Equipped with H-grade high-temperature resistant insulation materials, the alternator can withstand high-temperature aging under continuous high-load operation, effectively extending the service life of electrical components.
For environmental adaptability and safety protection, the whole machine adopts IP23 dustproof and splash-proof protection design, which can effectively block dust, debris and rain splash, adapting to outdoor open-air construction sites, dusty factory workshops and humid field working environments. The built-in complete intelligent protection system covers low oil pressure alarm, high water temperature shutdown, over-speed protection, over-voltage and under-voltage protection, as well as overload and short-circuit automatic protection. It can automatically alarm and shut down in case of abnormal operating parameters, avoiding equipment burnout and fault expansion.
In terms of fuel economy and operational stability, the optimized electronic fuel injection control system makes fuel combustion more sufficient. The fixed full-load fuel consumption is only 73.7L/H, achieving a perfect balance between high-power output and energy-saving operation. The high-precision electronic speed governor ensures extremely stable power output with tiny fluctuation, providing pure and reliable power guarantee for precision instruments, automated production lines and high-power industrial equipment.
As a hot-selling 280kW industrial standby diesel generator, this model has strong universality and export compatibility. The mature 6-cylinder in-line engine structure features stable operation and low vibration noise. The standard 60Hz frequency design fully meets the power supply requirements of Southeast Asia, Africa, the Middle East and other overseas regions, and is widely used in foreign trade export and overseas engineering supporting projects.
3. Application Scenarios
Benefiting from high power, strong stability and wide environmental adaptability, the SDEC 6ETAA11.8-G21 350kVA diesel generator set is widely applied in high-load industrial production, large-scale infrastructure construction, commercial complex supporting, public emergency guarantee and overseas engineering export fields, covering all high-power power supply scenarios requiring long-term continuous power and emergency standby power.
Heavy Industrial Production Scenarios: It is the preferred standby power equipment for large manufacturing factories, chemical industrial parks, machinery processing bases and automated production enterprises. Industrial high-load equipment and assembly lines have extremely strict requirements for power supply continuity. Sudden power failure will lead to production shutdown, product scrapping and equipment damage. This 350kVA SDEC diesel generator set can quickly switch on power supply to ensure uninterrupted industrial production and reduce economic losses caused by grid faults.
Field Engineering & Infrastructure Construction: Suitable for municipal key projects, road and bridge engineering, water conservancy construction, open-pit mining and remote field operation projects. Most outdoor construction sites are not covered by municipal power grids. The high-power and durable advantages of the unit can fully meet the long-term power demand of large construction machinery, welding equipment, temporary engineering offices and staff living electricity, supporting all-weather off-grid stable operation.
Large Commercial & Public Facilities: Widely used in super high-rise office buildings, large shopping mall complexes, star hotel clusters, logistics hubs and urban public service centers. These commercial and public places involve people's livelihood and business operation, requiring zero power outage in key links. When encountering grid maintenance, peak power limitation and sudden power failure, the unit can start up rapidly to supply power for elevators, fire-fighting systems, lighting and weak current equipment, ensuring normal operation of commercial venues and urban public facilities.
Emergency Rescue & Disaster Prevention Scenarios: It can provide core emergency power guarantee for urban emergency command centers, hospital medical systems, communication base station clusters and flood control and disaster reduction projects. In extreme weather, grid collapse and public emergencies, the unit can continuously output stable power to support medical rescue, signal transmission and fire-fighting disposal, providing key power support for urban emergency disposal.
Overseas Engineering Export Scenarios: As a professional 60Hz export diesel generator set, it is highly matched with the power grid standards of most countries and regions worldwide. It is widely used in overseas factory construction, foreign infrastructure contracting, overseas mining development and other projects, and is a reliable high-power power supply supporting equipment for domestic power equipment foreign trade export.
4. Core Purpose
The core purpose of the SDEC 6ETAA11.8-G21 280kW/350kVA diesel generator set is to solve the power supply pain points of insufficient grid power capacity, unstable municipal power supply and no fixed grid coverage in high-load scenarios, and provide continuous, safe and stable high-power power support for industrial production, engineering construction and public emergency guarantee.
Firstly, it serves as the main emergency standby power supply for heavy industrial enterprises. Under normal grid operation, the unit remains in automatic standby state. Once the municipal power grid fails, cuts off power or implements peak regulation power limitation, the generator set can realize quick start and automatic power switching, effectively avoiding production line shutdown, equipment damage and order loss caused by power interruption, and reducing enterprise operational risks and economic losses.
Secondly, it acts as the long-term main power supply for off-grid field projects. For remote mining areas, wild construction bases and infrastructure projects without municipal grid coverage, this high-power SDEC generator set can be used as the independent main power source to provide 24-hour stable power supply for large construction equipment, production systems and daily living facilities, meeting the long-term off-grid power demand of field engineering projects.
In addition, it undertakes the key public emergency power guarantee task. For urban medical, communication, fire-fighting and municipal emergency facilities closely related to people's livelihood safety, the unit can quickly respond to power failure emergencies, maintain the normal operation of key public equipment, and provide reliable power support for urban disaster prevention, emergency rescue and daily public service operation.
At the same time, it is a core supporting equipment for overseas engineering power supply and export business. With standard 60Hz frequency, compliant parameters and mature stable performance, it adapts to overseas mainstream power supply standards, provides standardized and high-quality power solutions for foreign industrial construction and infrastructure projects, and enhances the competitiveness of domestic power generation equipment in the global market.
5. FAQ (Frequently Asked Questions)
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 unit, which supports long-term uninterrupted full-load operation and is suitable for daily continuous power supply and conventional standby power consumption scenarios. The 310kW/387.5kVA standby power is short-term emergency peak power, which is only used for instantaneous overload power supply in sudden power failure emergencies. It is prohibited to operate under standby load for a long time, otherwise it will cause excessive engine load, accelerate wear of internal parts and shorten the overall service life of the unit. Users need to allocate power reasonably according to actual load conditions.
Q2: Why is the brushless self-excited alternator more suitable for industrial long-term operation?
A2: The brushless self-excited alternator equipped on this SDEC generator set has obvious practical advantages for industrial scenarios. It abandons the traditional carbon brush friction structure, basically achieving zero maintenance in daily operation, saving a lot of manual maintenance costs and equipment downtime. Meanwhile, it features fast excitation response and high voltage regulation precision, with stable output power quality and no voltage jitter, which can well protect precision industrial equipment from power impact. Cooperated with H-class high-temperature insulation and IP23 protection grade, it can operate stably for a long time in high-temperature, dusty and humid harsh industrial environments, with far higher reliability than ordinary brushed alternators.
Q3: What are the core advantages of this 60Hz 280kW diesel generator set compared with similar products?
A3: This unit has three core advantages in the same power grade. First, it adopts SDEC original 11.8L large-displacement heavy-duty engine, with sufficient power reserve and strong overload capacity, adapting to high-load long-term operation. Second, the fuel consumption is well controlled at 73.7L/H under full load, with excellent energy-saving performance and lower long-term operating cost. Third, the standard 60Hz frequency design and mature and stable configuration make it highly compatible with overseas project standards, with low failure rate and convenient after-sales maintenance. It is more suitable for industrial standby and overseas engineering power supply scenarios than ordinary competitive models.

