WOPUSAI 12V138 Series 800kVA-1500kVA Open Frame Diesel Generator Standby Power For Grid Peak Shaving
| Phase: | 3 Phase | Type: | Diesel Generator |
| Enginemodel: | Wopusai | Fueltype: | Diesel |
| Frequency: | 50Hz/50Hz/ | Voltage: | 220V/380V/400V |
| Productname: | Wopusai Generator Set | Coolingsystem: | Water Cooled |
| Fueltankcapacity: | Customized On Demand | Runtimeatfullload: | 8 Hours |
| Startingsystem: | Electric Start | Poweroutput: | 10 KVA - 1500 KVA |
| High Light: | Peak Shaving 1500kVA Diesel Generator,Peak Shaving Open Frame Diesel Generator,Peak Shaving Generator Standby Power |
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WOPUSAI 12V138 Series 800kVA-1500kVA Open Frame Diesel Generator, Standby Power for Grid Peak Shaving
Product Overview
The WOPUSAI 12V138 series 800kVA~1500kVA diesel generator set is equipped with STF790 to STF1320 V12 heavy-duty diesel engine, matched with TFW series brushless self-excited all-copper alternator. This large-bore V-type heavy-duty genset is built for prime power supply and mission-critical standby power for super-large industrial projects. Adopting direct injection fuel system and reliable mechanical speed governing, it delivers stable power output and excellent impact load resistance. It serves as the core power source for large mines, heavy industrial zones, large data centers, municipal engineering, remote off-grid power stations and large-scale construction projects.
Product Showcase
Complete open-frame genset assembly, WOPUSAI 12V138 series diesel engine unit, TFW brushless self-excited all-copper alternator, industrial-grade control cabinet, complete piping assembly and heavy-duty high-capacity water cooling radiator.

Key Specifications
800kVA-1500kVA 12V138 series Wopusai six-cylinder open frame unit |
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| Rated power | 700KW/875kVA | 800KW/1000kVA | 900KW/1125kVA | 1000KW/1250kVA | 1100KW//1375kVA | 1200KW/1500kVA |
| Rated current | 1260A | 1440A | 1620A | 1800A | 1980A | 2160A |
| Rated voltage | 400V/230V | |||||
| Rated frequency | 50Hz | |||||
| Rated speed | 1500rpm | |||||
| Fuel consumption | 250g/KW.h | |||||
| Dimensions | 3800*1800*2350mm | 4500*1800*2350mm | ||||
| Unit weight | 6000KG | 6500KG | 7000KG | 7500KG | 8000KG | 9000KG |
| Noise index | 120dB | |||||
| Model | STF790 | STF880 | STF1080 | STF1180 | STF1210 | STF1320 |
| Number of cylinders | 12V | |||||
| Bore stroke | 138*158mm | 138*165mm | 138*168mm | |||
| Exhaust volume | 28.3L | 28.3L | 29.6L | 30.2L | 30.2L | 30.2L |
| Starting method | DC 24V DC start | |||||
| Cooling method | 40℃ standard water cooling cycle | |||||
| Oil supply method | Direct injection | |||||
| Debugging method | Mechanical speed regulation | |||||
| Air intake method | Turbocharged intercooler | |||||
| Generator configuration | Brushless self-excitation | |||||
| Brand/Model | TFW-700 | TFW-800 | TFW-900 | TFW-1000 | TFW-1100 | TFW-1200 |
| Rated power | 700KW/875kVA | 800KW/1000kVA | 900KW/1125kVA | 1000KW/1250kVA | 1100KW//1375kVA | 1200KW/1500kVA |
| Insulation level | F | |||||
| Protection level | IP 23 | |||||
| Wiring method | Star connection | |||||
| Adjustment method | AVR automatic voltage regulation | |||||
| Power Factor | 0.8 lag | |||||
Core Advantages
✅ V12 Large Bore Turbocharged Intercooled Heavy-Duty Engine: 12V138 series STF V12 engine with maximum displacement of 30.2L, turbocharged intercooled design. Massive torque reserve enables the unit to handle sudden large load shocks, maintaining stable operation under long continuous heavy-load running.
✅ TFW Brushless Self-Excited All-Copper Alternator: Brushless design eliminates carbon brush abrasion and frequent maintenance work. All-copper windings paired with AVR automatic voltage regulator ensure consistent voltage output even under frequent load fluctuations, minimizing downtime for critical power projects.
✅ Robust Mechanical Speed Governing System: Mature mechanical governor features simple construction and strong environmental adaptability. It is less sensitive to high temperature and dust, ideal for harsh mining and heavy industrial sites with unstable working conditions.
✅ Oversized Heavy-Duty Water Cooling System: High-capacity customized radiator supports continuous operation at ambient temperature up to 40℃, effectively preventing overheating faults during long-duration full-load operation.
✅ IP23 Protection & Class F Insulation: F-class winding insulation improves thermal endurance; IP23 protection blocks solid particles and splashing water, suitable for semi-outdoor installation and complicated heavy industrial environments.
🎯 Application Scenarios
Super-large mining continuous power supply, heavy industrial park primary power, large data center emergency backup, municipal water treatment project, large infrastructure construction, remote off-grid power station. Designed for ultra-heavy load and long-cycle continuous operation.
⚙️ Optional & Customization
- Silent canopy / Mobile trailer chassis
- ATS automatic transfer switch for automatic startup once mains power fails
- Multi-protection control system (overspeed, high temperature, low oil pressure, overcurrent protection)
- Extended base fuel tank, remote monitoring module
- Custom painting and brand logo printing
📦 Packaging Standards
Standard export steel frame packing with shockproof fixing, protect engine and alternator against collision during long-distance sea and land transportation. Export plywood case is also available upon request.
🚛 Shipping & Delivery
We support FOB, CIF, DDP and other international trade terms. Goods can be delivered within 10-18 working days after receiving deposit. Packing list, commercial invoice and full set of factory test reports will be supplied for customs clearance.
🏢 Brand Introduction
Wopusai Mechanical and Electrical is a professional manufacturer integrating R&D, production and sales of diesel generator sets. We provide complete power solution including genset, spare parts and after-sales maintenance. Every unit will pass strict factory load test before delivery. We supply high-performance generator products to global customers, with 24/7 technical support and worldwide after-sales service.
