21-L Series Vertical Motors

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

• Designs up to 6,300 kW (8,500 hp)
• Wide variety of enclosures
• Rugged, fabricated steel construction
• Frame sizes from 150-50 M ~ 190 - 62 L
• Designed to meet worldwide standards
• Fabricated copper bar rotor construction

Design Feature

• Excellent Electrical Performance
• Unique Modular Construction
• Selection of Thrust Bearings
• New Compact Design
• Lower Noise & Less Vibration
• Advanced VPI Insulation System
• Quality Control

Customer Benefit

• • Higher efficiency
  • Higher power factor
  • Superior starting characteristics
• Easy motor enclosure conversion:
  DP, WP1, WP2, CACA (TEAAC), CACW (TEWAC)
• • Angular contact ball bearings
  • Spherical roller thrust bearings
  • Tilting pad thrust bearings
• • Extensive electrical magnetic field analysis
  • Heat transfer analysis
  • Improved ventilation
• Advanced techniques in core/frame construction
• Can withstand higher surge
• • Low operating/maintenance costs
  • High reliability
  • Extended re-greasing intervals