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Wholesale 100kVA – 400kVA Universal Diesel Generator Sets
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  • 100kVA – 400kVA Universal Diesel Generator Sets
  • 100kVA – 400kVA Universal Diesel Generator Sets
  • 100kVA – 400kVA Universal Diesel Generator Sets
  • 100kVA – 400kVA Universal Diesel Generator Sets
  • 100kVA – 400kVA Universal Diesel Generator Sets
  • 100kVA – 400kVA Universal Diesel Generator Sets
  • 100kVA – 400kVA Universal Diesel Generator Sets
  • 100kVA – 400kVA Universal Diesel Generator Sets

100kVA – 400kVA Universal Diesel Generator Sets

Fully compliant with ISO 8528 and GB/T 2828 international standards, the 100kVA – 400kVA gensets adopt mainstream brand industrial diesel engines, high-power full-copper brushless alternators and upgraded intelligent control systems. Optimized for prime power, long-duration standby and frequent load fluctuation conditions, the units deliver stronger overload resistance, better power stability and higher continuous working reliability than small-power gensets. Widely verified in global commercial and industrial fields, they perfectly serve medium-scale power demand scenarios requiring stable and long-term uninterrupted power supply.

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Product Information

100kVA – 400kVA universal diesel generator sets are medium-duty power solutions compatible with all mainstream diesel engine brands. Featuring strong load capacity, stable continuous operation, reliable power output, and a moderate footprint, this mid-power series bridges small backup power and heavy industrial power demand. It is the most widely used universal genset for commercial complexes, medium industrial sites and municipal engineering standby power projects.

Core Configuration

Engine: Equipped with mainstream medium-bore industrial diesel engines with turbocharged intercooling and high-precision fuel injection systems. Featuring sufficient power reserve, strong instantaneous load response, and stable continuous operation, the engine adapts to high-temperature, high-humidity, dusty, and high-altitude working environments. It supports long-hour continuous operation with reliable durability and standardized global spare parts supply.

Alternator: Heavy-duty brushless synchronous full-copper alternator with Class H insulation and IP23 protection grade. It features large power margin, low waveform distortion, and excellent dynamic performance, stably supporting mixed resistive and inductive loads, fully adapting to commercial and industrial comprehensive power equipment.

Control System: Upgraded industrial-grade intelligent controller with comprehensive fault diagnosis and multi-protection functions. It supports automatic start/stop, ATS automatic switching, real-time data monitoring, remote cloud management, and multi-unit parallel operation, realizing 24/7 unattended intelligent and safe operation.

Auxiliary System: Reinforced integrated base frame, matched with a large-flow cooling system, high-efficiency multi-stage filtration, heavy-duty shock absorption structure, and industrial silencer. The optimized industrial modular design ensures strong durability, convenient installation, and low daily maintenance frequency.

Core Advantages & Application Adaptability

Strong Continuous Load Capacity: With sufficient power reserve and excellent overload performance, the units support long-term continuous operation, fully meeting frequent startup and stable power supply requirements of medium industrial and commercial scenarios.

Excellent Comprehensive Stability: Optimized power output ensures low fluctuation under mixed loads, effectively protecting industrial equipment, central air conditioning systems, and comprehensive electrical facilities.

High Cost Performance for Medium-Scale Projects: Balancing power grade, equipment investment, and operation cost, this series is the most cost-effective choice for medium standby power projects, avoiding power waste of large gensets and insufficient capacity of small gensets.

Industrial-Grade Durability & Adaptability: Industrial reinforced structure adapts to urban commercial environments and ordinary factory harsh working conditions, with strong environmental tolerance and long service life.

Detailed Application Scenarios

Commercial Complex Projects: Shopping malls, large supermarkets, commercial streets, office buildings, hotels, resorts, and exhibition centers, providing stable backup power for daily operation, central air conditioning, and business emergency scenarios.

Medical & Educational Institutions: Grade-A hospitals, comprehensive medical centers, universities and large campus parks, ensuring uninterrupted power supply for medical equipment, teaching systems and safety monitoring systems.

Municipal & Public Facilities: Municipal engineering, traffic facilities, water supply and drainage projects, energy stations and public service centers, supporting reliable emergency and standby power for urban infrastructure.

Medium Industrial & Manufacturing Sites: Medium processing factories, workshop production lines, packaging and manufacturing enterprises, providing standby power to prevent production shutdown losses caused by grid power failure.

Construction & Engineering Projects: Urban construction sites, bridge engineering, road construction and temporary industrial parks, serving as stable temporary power supply for medium-scale engineering operation.

Communication & Data Infrastructure: Medium data computer rooms, regional communication base stations and network operation centers, ensuring stable operation of IT equipment, server systems and communication facilities.

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About Aiweite

Founded in 2008, Yangzhou Aiweite Electromechanical Co., Ltd. has accumulated extensive experience in the manufacture and installation of generator sets ranging from 1 kVA to 2,500 kVA. We are China 100kVA – 400kVA Universal Diesel Generator Sets Manufacturers and Wholesale 100kVA – 400kVA Universal Diesel Generator Sets Factory. Over the years, Aiweite has continued to strengthen its capabilities and market presence, and we are committed to becoming a reliable long-term partner for customers worldwide.

Through continuous innovation, we consistently improve the efficiency, durability, and environmental performance of our products. Advanced manufacturing equipment and strict quality management are applied throughout production to ensure that every generator set meets applicable international standards.

We have established long-term and stable relationships with customers across different markets and place strong emphasis on customer satisfaction. Comprehensive support is provided before, during, and after each project, ensuring that customer requirements are addressed promptly and effectively.

Guided by the principle of "Quality First, Customer First," we uphold a corporate culture built on integrity, responsibility, innovation, and mutual success.

Yangzhou Aiweite Electromechanical Co., Ltd.

Latest Updates

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    An 1800 kVA standby-rated diesel generator set cannot feed a 1500 kW process line hour after hour. Under ISO 8528-1:2018, the standby rating assumes emergency duty only, limits the 24-hour average load to 70% of rated output, and permits no planned overload; the same machine configured for prime d...

    Oct 09, 2026

  • 1000-2500 kVA Universal Diesel Generator Sets: Large-Scale...
    Losing power for thirty minutes can shut a production line, stop a pumping station, or force a process restart that wastes hours. When the required capacity reaches 1000-2500 kVA, a universal diesel generator set is not a small accessory; it is a major electrical asset that must be specified, inst...

    Oct 07, 2026

  • Baudouin Powered Diesel Generator Sets: Key Performance Fa...
    A petrochemical plant in Southeast Asia shortlisted two Baudouin powered diesel generator set packages for a 600 kVA standby application. The winning quotation had to prove four things: duty rating, derating behaviour, fuel consumption curve and control response. Those four factors separate a gene...

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100kVA – 400kVA Universal Diesel Generator Sets Industry knowledge

Yangzhou Aiweite Electromechanical Co., Ltd. manufactures 100kVA – 400kVA Universal Diesel Generator Sets for commercial, industrial, medical, municipal and infrastructure standby power. The series is built around mainstream medium-bore diesel engines, heavy-duty brushless alternators and upgraded intelligent control systems.

Mid-Power Gensets Engineered for Continuous Duty

Our 100kVA – 400kVA range bridges small backup units and heavy industrial power. It is designed for prime power, long-duration standby and frequent load fluctuation, with stronger overload resistance and better voltage stability than small-power gensets. The series complies with ISO 8528 and GB/T 2828 performance requirements and is widely applied in commercial complexes, medium manufacturing sites and municipal engineering projects.

Each unit is configured around the actual working point: load profile, ambient conditions, altitude, fuel quality and the required operating mode. We supply open, silent, container and trailer structures, with 50Hz or 60Hz electrical configuration and global voltage standards.

Core Configuration of the 100kVA – 400kVA Series

Engine

Mainstream medium-bore industrial diesel engines with turbocharged intercooling and high-precision fuel injection. Sufficient power reserve, strong instantaneous load response and stable continuous operation in high-temperature, high-humidity, dusty and high-altitude environments.

Alternator

Heavy-duty brushless synchronous full-copper alternator, Class H insulation, IP23 protection. Large power margin, low waveform distortion and excellent dynamic performance for mixed resistive and inductive loads.

Control System

Industrial-grade intelligent controller with fault diagnosis and multi-protection. Supports automatic start/stop, ATS switching, real-time monitoring, remote cloud management and multi-unit parallel operation for 24/7 unattended operation.

Auxiliary System

Reinforced integrated base frame, large-flow cooling system, high-efficiency multi-stage filtration, heavy-duty shock absorption and industrial silencer. Modular design for convenient installation and low daily maintenance frequency.

Available Range and Structure Options

We build the 100kVA – 400kVA series in four structural formats and with a choice of engine brands. The table below shows how each configuration is positioned for project use.

Configuration Typical Application Key Selection Notes
Open type Factory workshops, temporary power, plant rooms with dedicated acoustic treatment Lowest footprint and cost; requires ventilated, weather-protected room
Silent type Hospitals, hotels, office buildings, residential-adjacent commercial sites Acoustic canopy with noise reduction; confirm required dB(A) at distance
Container type Data rooms, regional communication base stations, outdoor municipal projects Weatherproof, transportable; integrated fuel tank and control room options
Trailer type Construction sites, bridge and road engineering, temporary industrial parks Mobility with road-towable chassis; confirm axle and braking requirements

Engine Brand Options Within the Series

The 100kVA – 400kVA platform is compatible with all mainstream diesel engine brands. We select the engine according to fuel availability, service network, emission requirements and load profile. Available engine families include:

  • Cummins Powered Diesel Generator Sets — global spare parts and service coverage
  • Perkins Powered Diesel Generator Sets — proven medium-bore industrial platform
  • Weichai Powered Diesel Generator Sets — strong domestic supply chain and cost efficiency
  • Yuchai Powered Diesel Generator Sets — robust performance in high-load conditions
  • Baudouin Powered Diesel Generator Sets — marine-derived durability for harsh environments
  • MTU Powered Diesel Generator Sets — high-performance option for critical standby
  • Volvo Powered Diesel Generator Sets — low emissions and smooth operation
  • SDEC Powered Diesel Generator Sets — cost-effective mid-power solution
  • Mitsubishi Powered Diesel Generator Sets — compact and reliable for commercial use

Application Fit Across Industries

This mid-power series is the most widely used universal genset for medium-scale power demand. Typical installations include:

  • Commercial complexes: shopping malls, supermarkets, office buildings, hotels, resorts and exhibition centers — backup power for daily operations, central air conditioning and emergency lighting.
  • Medical and educational institutions: hospitals, medical centers, universities and campus parks — uninterrupted power for medical equipment, teaching systems and safety monitoring.
  • Municipal and public facilities: traffic facilities, water supply and drainage projects, energy stations and public service centers — reliable emergency and standby power.
  • Medium industrial and manufacturing sites: processing factories, workshop production lines and packaging enterprises — preventing production shutdown losses during grid failure.
  • Construction and engineering projects: urban construction sites, bridge engineering, road construction and temporary industrial parks — stable temporary power supply.
  • Communication and data infrastructure: medium data computer rooms, regional communication base stations and network operation centers — stable operation of IT equipment and servers.

Controls, Automation and Line Integration

We configure the control system around the required line interface. The industrial-grade controller supports automatic start/stop, ATS automatic switching, real-time data monitoring, remote cloud management and multi-unit parallel operation. For projects requiring integration with building management systems or SCADA, we confirm communication protocol, alarm mapping and remote monitoring requirements during engineering review.

Electrical configuration is matched to site conditions: 50Hz or 60Hz, global voltage standards, and protection settings coordinated with upstream switchgear. Where the generator operates in parallel with other units or with the grid, we define the synchronization and load-sharing strategy before production.

Quality Control and Acceptance Testing

Every 100kVA – 400kVA genset is validated through a structured quality process before delivery. Control points include incoming inspection of key components, assembly process verification, electrical safety checks and mechanical fitting inspection. Before shipment, each unit undergoes full-load testing from 0–110% rated capacity, step load response testing, continuous operation endurance testing, voltage and frequency stability testing, and emergency protection system verification.

We document test results and provide them with the delivery package. For projects requiring third-party inspection or witness testing, we coordinate the acceptance protocol during order confirmation.

Installation, Maintenance and Serviceability

The reinforced integrated base frame and modular layout simplify installation. We provide installation guidance covering foundation requirements, ventilation, exhaust routing, fuel system connection and electrical termination. Daily maintenance focuses on filters, lubricating oil, coolant and battery condition; the multi-stage filtration system and accessible component layout reduce service time.

We supply genuine spare parts for engine components, alternator parts, electrical and control system parts, filters and consumables. Technical troubleshooting and operation support are available after installation.

Information We Use to Configure Your Solution

To prepare an accurate configuration and quotation for a 100kVA – 400kVA genset, we need the following project inputs:

  • Required power rating (kVA/kW) and operating mode: standby, prime or continuous
  • Site conditions: ambient temperature, humidity, altitude, dust level and installation environment
  • Load profile: type of loads, starting method, step load size and power factor
  • Electrical parameters: voltage, frequency, phase and number of wires
  • Control and automation requirements: ATS, remote monitoring, parallel operation, communication protocol
  • Structure preference: open, silent, container or trailer
  • Engine brand preference or fuel quality constraints
  • Applicable standards, inspection requirements and documentation language
  • Delivery destination, packaging requirements and expected project schedule

Frequently Asked Questions

What is the difference between the 100kVA – 400kVA series and smaller gensets?

This series uses medium-bore industrial engines with turbocharged intercooling, larger alternators and upgraded control systems. It delivers stronger overload resistance, better voltage stability and higher continuous working reliability, making it suitable for medium-scale commercial, industrial and municipal projects.

Can you supply the genset with a specific engine brand?

Yes. The platform is compatible with Cummins, Perkins, Weichai, Yuchai, Baudouin, MTU, Volvo, SDEC and Mitsubishi engines, among others. We select the engine based on fuel availability, service network, emission requirements and load profile.

What testing is performed before delivery?

Each unit undergoes full-load testing from 0–110% rated capacity, step load response testing, continuous operation endurance testing, voltage and frequency stability testing, and emergency protection system verification. Test documentation is included with the delivery package.

Do you support OEM/ODM customization for this power range?

Yes. We provide OEM and ODM generator manufacturing solutions covering power configuration, engine selection, control system integration, structural design and acoustic treatment. Customization is based on customer specifications, engineering requirements and application environments.

What is the typical lead time for a 100kVA – 400kVA genset?

Lead time depends on configuration, engine availability and project schedule. We confirm production scheduling during order review and coordinate delivery to meet project milestones.

What support is available after installation?

We provide installation guidance, operation support, technical troubleshooting and genuine spare parts supply. Our service system is designed to ensure stable operation and long-term reliability throughout the generator set lifecycle.