TOTALLY ENCLOSED FAN COOLED INDUCTION MOTOR – NG SERIES

CG manufactures NG-Series Motors, which are the state – of – the art, energy efficient and Totally Enclosed Fan Cooled (TEFC) Squirrel Cage motors. These motors are extremely efficient, even at partial loads and they have very low noise levels. Efficiency of these motors is maximized by effective utilization of materials and optimal design of the fins. There is no sharp drop in the efficiency curve at partial loads due to the reduced friction, windage and core losses.

Category:
EFFICIENCY LEVEL – 1 MOTORS – NG SERIES
FLAME PROOF LARGE MOTORS EX ‘D’ (HV)

Description

Scope

OUTPUT POWER VOLTAGES FRAME SIZE STANDARD
Up to 2000 kW 380 V to 13.8 kV 315 – 630 IEC, IS

 

  • Energy efficient surface cooled motors
  • Robust steel frame
  • Solid deep rotor bars in single cage
  • Special double cage as per drive
  • Antifriction bearings
  • Dynamically balanced rotors
  • Stringent quality checks
  • Class ‘F’ insulation with class ‘B’ temperature rise
  • High efficiency
  • Low noise levels
  • Low vibration levels
  • Ease of maintenance

Technical Specifications

  • Totally enclosed fan cooled
  • 100 to 3000kW at 50 Hz
  • 150 to 4000HP at 60 Hz
  • Voltages from 380 V to 15 kV
  • Shaft heights 315 – 630 mm
  • Horizontal or vertical
  • IP55/IP56, IC4A1A1 / IC4A1A6
  • 2 Pole to 8 Pole
  • Standards IEC60034 / IS325
  • Motors for classified areas
  • Motors for VFD

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