Tmeic - Model 21-VLL Series -Vertical AC Motors
The 21-VLL series three-phase medium-voltage motors are designed for large capacity applications.
- UP to 6500 kW (8,700 HP)
- WPII, TEAAC and TEWAC and custom frames
- Designed to meet worldwide standards
- Fabricated steel plate construction
- C5 steel lamination
The 21-VLL series is designed with features that maximize reliability while simplifying maintenance and operation. Application-specific thrust bearings and optional non-reversing ratchets ensure upper bearing performance under varying loads. A precision-built, split-core stator reduces core loss and assembly time, while the copper bar rotor is optimized for pump applications with enhanced starting torque and robust construction. Modular cooling options—including water-to-air, air-to-air (IP55), and open air circuits—support a wide range of operating environments with durable, corrosion-resistant materials.
- Excellent Electrical Performance
- Electromagnetic field analysis
- Heat conduction analysis
- Air flow system analysis
Insulation & Cooling
- Angular contact ball bearings (self-cooled)
- Spherical roller thrust bearings (self-cooled, air-cooled, water-cooled, oil-cooled
- Tilting pad thrust bearings (air-cooled, water-cooled, oil-cooled
- Drip-proof, NEMA Weather Protected
Noise Reduction
- The latest technology reduces noise to 80 dBa and less, and vibration level to 1.8 mm/sec
- Lower noise and vibrations address health and reliability concerns
Efficiency
- Increased efficiency
- Higher power factor
- Superior starting characteristics
Insulation
- Advanced VPI Insulation System
- Greater capacity of Improved insulation withstanding higher surges of power