The 21-L series three-phase high-voltage motors are designed for all applications and industries, and are compatible with variable frequency drive applications.

  • Up to 6,300 kW (8,500 HP)
  • Rugged, fabricated steel construction
  • Frame sizes 150-50 M ~ 190 - 62 L
  • Designed to meet worldwide standards
  • Fabricated copper bar rotor construction
  • C5 steel lamination
21-L Series Vertical Motors Features and Benefits
Design Feature
Customer Benefit

Electrical design including:

  • Extensive electrical magnetic field analysis
  • Heat transfer analysis
  • Improved ventilation 
  • Higher efficiency
  • Higher power factor
  • Superior starting characteristics
  • Requires lighter supporting structure

Unique Modular Construction

Easy motor enclosure conversions between DP, WP1, WP2, TEAAC, TEWAC

Selection of Thrust Bearings

  • Angular contact ball bearings
  • Spherical roller thrust bearings
  • Tilting pad thrust bearings

Suitable for many types of pumps.

Advanced techniques in core and frame construction

Lower noise and vibrations address health and reliability concerns.

Advanced VPI Insulation System

Can withstand higher surges of power

Culture of quality and continuous improvement

  • Low operating and maintenance costs
  • High reliability

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