WEG 2-Pole Turbine Generators Rotor Construction
This brochure details the engineering, materials, and precision manufacturing behind WEG’s 2-pole turbine generator rotors. Learn how advanced design ensures strength, balance, and efficiency under demanding operating conditions.
Key Points
- Rotor forging uses nickel-chromium-molybdenum-vanadium alloy steel for durability under temperature and load stress
- Step-milled slots reduce stress concentration and provide ample area for field copper and ventilation
- Axial steel fans and optimized ventilation ensure consistent cooling and rotor stability
- Brushless excitation design carries DC power efficiently to the main field winding
- Field coils are made of silver-bearing copper with Nomex insulation and resin bonding for reliability and cooling efficiency
- Retaining rings resist stress corrosion cracking and securely support coil end turns against centrifugal forces
- Balancing and vibration controls, including high-speed overspeed tests, guarantee smooth performance