Large Motors and Generators

Induction Motors
Fixed requirements from the customer
• Power, voltage, frequency, number of poles (speed)
• Ambient-Temperature. Altitude
• Starting requirements – DOL/VSD/Soft Start
• Cooling method – TEFC / CACA / CACW
• Temperature rise requirements -Class B/F
• Load information-TS curve Inertia
• Type of coupling -direct flexible, fluid/scoop, geared
• Relevant standards-IEC/NEMA
• Other customer requirements – Specifications
• Certification-IEC Ex/ATEX
• End User Country

Categories: ,

Description

Modular Induction Motors

  • Output power < 10.6 MW
  • AMI/NMI
  • Output power: 160kW to 10600 kW
  • Frame size: 400 to 710
  • Number of poles: 2 to 20
  • Voltage: Low voltage to 13.8kV
  • Frequency: 50/60 Hz
  • Cooling: CACA, CACW, SPDP
  • Mounting:  Horizontal, Vertical
  • Bearings: Antifriction. Sleeve
  • Insulation class: F
  • Supply: DOL/VSD
  • Area Classification: Safe & Hazardous ( Ex ec , Ex eb & Ex p )
  • Certificates: ATEX, IEC Ex, CCoE, IN METRO, CSA

Rib Cooled Motors

  • Output power < 1600 kW
  • AXR / NXR
  • Output power: 125kWto1600kW
  • Frame size: 315 to 500
  • Number of poles: 2 to 12
  • Voltage: Low voltage to 11 kV
  • Frequency: 50 to 60 Hz
  • Cooling: TEFC
  • Mounting: Horizontal, Vertical
  • Bearings: Antifriction, Sleeve
  • Insulation class: F
  • Supply: DOL/VSD
  • Area Classification : Safe & Hazardous { Ex ec & Ex eb )
  • Certificates: ATEX, IEC Ex, CCoE, INMETRO, CSA

Slip Ring Motors

  • Output power < l0,000 kw
  • NMK
  • Output power: Up to 10000 kW
  • Frame size: 400,450,500,560,630,710
  • Number of poles: 4 to 16
  • Voltage: 2.3kVupto13.8kV
  • Frequency: 50 Hz, 60 Hz
  • Cooling: IC611.IC616, IC81W.IC86W
  • Protection: IP55
  • Enclosure material: Fabricated Steel
  • Bearings: Antifriction or Sleeve
  • Motor type: NMK
  • Mounting: Horizontal
  • Standards: IEC (NEMA MG1 electrical design available)
  • Supply type: DOL
  • Insulation class: F 155°C
  • Ex protection types: Not available

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