21-VLL Series Vertical Motors

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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
21-VLL Series Vertical Motors Features and Benefits
Design Feature
Customer Benefit

Excellent Electrical Performance

Analytical Technology applied to Design:

  • Electromagnetic field analysis
  • Heat conduction analysis
  • Air flow system analysis
  • Increased efficiency
  • Higher power factor
  • Superior starting characteristics
  • 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

Availability of various bearings configurations suits all types of pumps.

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

Advanced VPI Insulation System

  • Greater capacity of Improved insulation withstanding higher surges of power
  • Inverter drive operation is an option

Type of Protection & Cooling Method - customized enclosures allow a standard production motor to meet individual requirements

  • Drip-proof, NEMA Weather Protected
  • Totally enclosed air-to-air cooled
  • Totally enclosed water-to-air cooled

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