Yangzhou Aiweite Electromechanical Co., Ltd. manufactures 400kVA – 1000kVA Universal Diesel Generator Sets for continuous prime power and emergency standby duty in heavy industry, data and communication hubs, large commercial complexes, municipal infrastructure, and energy or mining projects. The series is built around heavy-duty industrial engines, full-copper brushless alternators, and industrial intelligent controllers, with configurations matched to the load profile, site environment, and electrical interface of each project.
As a China diesel generator set manufacturer, we integrate engine, alternator, control, cooling, exhaust, and base-frame systems in our own production process, then validate each unit through full-load testing before delivery.
What the 400kVA – 1000kVA Range Covers
This power band sits between medium commercial units and large plant-scale generation. It is specified where a single set must carry sustained industrial load, absorb motor starting and inductive inrush, and remain available for long unattended periods. The range is compatible with mainstream heavy-duty engine brands, so the engine platform can be selected around fuel quality, service network, emission requirements, and spare-parts strategy rather than being fixed by the frame size.
- Prime and continuous duty: rated for long-hour operation at stable voltage and frequency, with power reserve for mixed and fluctuating loads.
- Standby and emergency duty: automatic start, ATS transfer, and full fault protection for facilities that cannot tolerate interruption.
- Parallel operation: multi-unit synchronization for staged capacity, redundancy, or future expansion.
- Harsh-environment execution: calibrated for high temperature, high altitude, dust, humidity, and coastal salt-spray conditions.
Core Configuration of the Series
Engine
Heavy-duty industrial engines with high-pressure common-rail injection and turbocharged intercooling form the base of the series. The rigid structure and generous power reserve support long-duration full-load running, while condition calibration allows stable operation in high-temperature, high-altitude, dusty, humid, and salt-laden environments. Maintenance intervals are set by the engine platform and the operating regime agreed for the project.
Alternator
Heavy-duty full-copper brushless alternators with Class H insulation and IP23 protection deliver low waveform distortion and strong anti-impact load capability. This combination is what allows the set to drive large industrial motors, transformers, and complex inductive loads without excessive voltage dip or frequency excursion.
Control System
Industrial intelligent controllers provide full fault protection, automatic start/stop, and ATS transfer. Real-time monitoring, 4G cloud remote management, and multi-unit parallel operation support safe 24/7 unattended running. Controller brand and communication protocol are selected to match the site's SCADA, BMS, or building-management interface.
Auxiliary and Structural System
A reinforced integrated base frame carries a large-flow cooling system, multi-stage filtration, heavy-duty dampers, and industrial mufflers. The modular industrial structure is intended for long-term heavy-load operation and for transport and lifting into plant rooms, basements, or remote sites.
Specification Meaning and Selection Variables
kVA defines apparent power; kW defines real power at the rated power factor, normally 0.8 for these sets. A 400kVA unit therefore delivers roughly 320kW, and a 1000kVA unit roughly 800kW. The working point, not the nameplate alone, determines whether a set holds up in service.
| Selection Variable |
Why It Changes the Configuration |
| Load profile and duty |
Continuous, prime, or standby duty sets the rating basis and the cooling and fuel-system sizing. |
| Motor and inductive load share |
Large direct-on-line motors require additional transient capacity and alternator excitation margin. |
| Voltage, frequency, and phase |
50Hz or 60Hz and the site voltage standard determine alternator winding and switchgear. |
| Altitude and ambient temperature |
Derating and cooling capacity are adjusted for thin air and high ambient conditions. |
| Enclosure and acoustic limit |
Open, silent, container, or trailer execution follows the installation and noise boundary. |
| Control and remote interface |
ATS, parallel operation, and cloud or SCADA monitoring define controller and wiring scope. |
Engine Platform Options
Because the series is universal, the engine platform is a project decision rather than a fixed feature. We build around the brands most often specified for this power band, including Cummins Powered Diesel Generator Sets, Perkins Powered Diesel Generator Sets, Weichai Powered Diesel Generator Sets, and MTU Powered Diesel Generator Sets. Volvo, Yuchai, Baudouin, SDEC, and Mitsubishi platforms are also available within the same structural and control architecture.
Engine choice affects fuel consumption, service interval, parts availability, and local emission expectations. We confirm the platform against the site country, fuel sulfur level, and the maintenance resources available to the operator.
Enclosure and Installation Formats
The same generating core can be delivered in several structural executions, each matched to a different installation condition.
- Open type: for dedicated plant rooms with permanent ventilation, exhaust routing, and acoustic treatment.
- Silent type: for urban, commercial, and residential-adjacent sites with defined noise limits.
- Container type: for outdoor, remote, and harsh-environment projects needing weather protection and transportability.
- Trailer type: for temporary, mobile, or field power where the set is relocated between sites.
Installation planning covers foundation or anti-vibration mounting, cooling-air inlet and outlet paths, exhaust routing and insulation, fuel storage and day-tank arrangement, cable entry, and battery and charger placement. For basement or enclosed rooms, we confirm the heat rejection and air-change requirements before the enclosure is fixed.
Quality Control and Acceptance Testing
Production follows a staged control system rather than a single final inspection. Incoming key components are checked, assembly is verified, and electrical safety and mechanical fitting are inspected before the unit moves to test.
| Stage |
Verification |
| Incoming inspection |
Key components checked against specification before release to assembly. |
| Assembly control |
Engine-alternator alignment, coupling, wiring, and mechanical fitting verified. |
| Electrical safety |
Insulation, protection settings, and control functions checked. |
| Full-load test |
Load applied across the rated range with step-load response and stability recorded. |
| Endurance and protection |
Continuous running and emergency protection functions verified before dispatch. |
The series is designed to comply with ISO 8528 and GB/T 2828 standards. Test records, wiring diagrams, operation manuals, and commissioning documentation are prepared as part of the delivery package so the receiving engineer can verify the set against the agreed specification.
Maintenance, Spare Parts, and Serviceability
Service access is considered at the configuration stage: filter and oil points, battery location, controller panel, and cooling-system inspection are arranged so routine maintenance can be performed without dismantling the enclosure. We supply genuine engine components, alternator parts, electrical and control components, filters, and consumables to support long-term operation and reduce downtime risk.
After installation, our support covers operation guidance, technical troubleshooting, and installation coordination. Maintenance intervals are set from the engine platform and the actual duty cycle, and we provide the schedule with the unit documentation.
Information We Use to Configure Your Solution
To prepare a firm configuration and quotation, we work from the project data below. Where a value is not yet fixed, we confirm it with the project engineer before releasing the design to production.
- Required prime, continuous, or standby rating in kVA or kW, and the expected load factor.
- Load list with motor ratings, starting method, and the largest single step load.
- Site voltage, frequency, phase, and power factor, plus the required protection and switching arrangement.
- Installation environment: indoor or outdoor, ambient temperature, altitude, dust, humidity, and coastal exposure.
- Acoustic limit, enclosure preference, and available footprint or transport constraints.
- Control interface: ATS, parallel operation, remote monitoring, and any SCADA or BMS protocol.
- Fuel type and quality, fuel storage arrangement, and expected autonomy hours.
- Destination country, applicable standards, documentation language, and delivery scope.
Frequently Asked Questions
What is the difference between kVA and kW on these sets?
kVA is apparent power and kW is real power at the rated power factor, normally 0.8. A 400kVA set delivers about 320kW and a 1000kVA set about 800kW. We size the set against the real load and the starting characteristics of the largest motors, not the nameplate alone.
Can the 400kVA – 1000kVA series run in parallel?
Yes. The industrial intelligent controller supports multi-unit parallel operation with synchronization and load sharing, which allows staged capacity, redundancy, or later expansion without replacing the first unit.
Which engine brands can be fitted in this power range?
The series is compatible with mainstream heavy-duty industrial engines, including Cummins, Perkins, Volvo, MTU, Weichai, Yuchai, Baudouin, SDEC, and Mitsubishi platforms. The final choice is confirmed against fuel quality, service network, emission expectations, and spare-parts strategy.
How is the set tested before delivery?
Each unit passes incoming component inspection, assembly verification, electrical safety checks, full-load testing across the rated range, step-load response testing, continuous operation endurance testing, and emergency protection verification before dispatch.
Can the enclosure and control system be customized?
Yes. We supply open, silent, container, and trailer executions, and configure the controller, ATS, remote monitoring, and parallel functions around the project interface. Acoustic treatment and structural design are adapted to the installation site.
What support is provided after installation?
We provide installation guidance, operation support, technical troubleshooting, and a stable supply of genuine spare parts covering engine components, alternator parts, electrical and control components, filters, and consumables.
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