| Manufacturer | Nanjing Turbine & Electric Machinery Group |
|---|---|
| Model | N20-8.83 |
| Rated Capacity | 20 MW (20,000 kW) |
| Inlet Temperature | 535 °C |
| Inlet Pressure | 8.83 MPa(a) |
1. Main Steam Turbine System
Steam Turbine Body: Nanjing Turbine (NJTC) Model N20-8.83-1, Condensing Type.
Rotor & Path Section: Complete blade sets, verified by NDT and high-speed dynamic balancing.
Governing & Protection: Includes Main Stop Valve, Control Valves, and Over-speed Protection.
2. Generator System
Generator Main Unit: Model QFW-20-2 Synchronous Generator (20MW / 25MVA).
Excitation System: Includes exciter and digital static excitation control cabinet.
Cooling System: Generator air-cooling system with monitoring instruments.
3. Auxiliary Equipment (Turbine Island)
Condensing System: Includes horizontal surface condenser, condensate pumps, and jet air ejectors.
Lube Oil System: Includes oil tank, main pump, AC/DC auxiliary pumps, and oil coolers.
Control System: Upgraded Digital Electronic Hydraulic (DEH) and monitoring panels.
Internal De-sludging & Cleaning: Comprehensive internal cleaning and rust removal of the turbine casing, rotor, and generator stator/rotor using professional industrial solvents.
Advanced Non-Destructive Testing (NDT): Ultrasonic and magnetic particle testing on all critical blades, journals, and structural components to eliminate risks of material fatigue or cracks.
High-Precision Dynamic Balancing: High-speed dynamic balancing for both turbine and generator rotors on professional rigs to ensure vibration levels exceed original OEM standards.
Seal & Bearing Overhaul: Complete replacement of all seals with premium fluorine rubber and overhaul of critical bearings to ensure a leak-free, long-life operation.
Full Dielectric & Insulation Testing: Rigorous testing of generator windings, including insulation resistance and high-potential tests, to match original factory performance curves.
Custom Engineering Design: Our technical team provides optimized system integration tailored to your site’s specific steam parameters and grid requirements.
Professional Dismantling & Packaging: We provide sea-worthy and rail-worthy heavy-duty packaging with nitrogen filling for long-distance transit to prevent core component oxidation.
On-Site Installation & Commissioning: We deploy veteran engineers to provide on-site supervision for everything from foundation alignment to final grid synchronization.
Technical Consultation & Training: Comprehensive operational manuals and practical training for your local team to ensure long-term, stable unit operation.
Operational Warranty: We offer a 12-month operational warranty and lifetime access to high-quality OEM-standard spare parts.