WATER COOLED INDUCTION MOTORS – IC 8A1W7 (CACW)

CG offers CACW Motors which include UW and FR Series High Voltage Induction Motors.

The UW range of induction motors includes both the Squirrel Cage (i.e. UWC) and the Slip Ring (i.e. UWR) type motors. These motors have totally enclosed construction. The UWC range consist of foot mounted (IMB3) machines which conforms to IS: 2253 / IEC: 60034-7. These motors are totally enclosed with IP55 protection as per IS: 4691 / IEC: 60034-5 and self cooled with air to water IC: 8AIW7- IEC: 60034-6 heat exchangers. The VUWC range is a variant of the UWC range with IMV1 flange mounted construction complying with IEC 60034-5.

The UWR range of induction motors is the Slip Ring motor design. The UW range of motors has been designed to meet diversified application demands, while maintaining excellent performance and highest quality.

The FR range of induction motor includes the FRC/FRCV type Squirrel Cage motor and the FRA/FRAV type Slip Ring motors. The FRC/FRA type is horizontal and foot mounted (IM B3, IEC60034-7) machines, whereas FRCV/FRAV type is vertical and flange mounted (IM V1, IEC 60034-7).These motors are totally enclosed (IP 54, IEC 60034-5), self cooled with air-to-water heat exchanger (IC 81 W7, IEC 34-6).

Country-Wise Scope

  TYPE OUTPUT VOLTAGES FRAME SIZE STANDARD
India UW Up to 15,000 kW 380 V to 13.8 kV 355 to 1400 IEC, IS
Europe FR Up to 25,000 kW 380 V to 13.8 kV 400 to 1800 IEC

Description

Offered From : Europe

  • Robust welded stator case,
  • Fabricated steel shields,
  • Labyrinth sealed bearings with grease disc,
  • Two symmetrical inner air circuits with radial air ducts for both directions of rotation, Top mounted heat exchanger with brass tubes,
  • Two-layer stator winding with strengthened turn-to-turn insulation,
  • Fabricated steel terminal boxes of IP 55 protection grade with pressure relief membrane,
  • Double cage rotor for heavy starting.
  • Pt 100 resistance temperature detectors are built in the stator slots and at the bearings.

Offered From : India

  • Higher power to weight ratio
  • Robust steel frame
  • Spider type shaft
  • Double ended radial ventilation
  • Solid deep rotor bars in single cage
  • Special double cage as per drive
  • End-shield mounted bearings
  • Antifriction/sleeve bearings
  • Dynamically balanced rotors
  • Highly reliable class ‘F’ insulation with class ‘B’ temp rise
  • Ease of maintenance
  • Space heaters
  • On-line greasing for bearings

Technicals

Offered From : Europe

Shaft height IMB3 400 – 1800 mm
Type of mounting IMB3, IMV1
Frame construction Fabricated Steel
Standards IEC 60034
Degree of protection IP55
Frame size IMV1 740 – 2500
Cooling IC8A1W7
Rotor construction SCR (Squirrel cage rotor) / SR (Slip Ring Motor)
Insulation Class H, F with VPI
Enclosures CACW

 

Offered From : India

Shaft height IMB3 355 – 1400 mm
Type of mounting IMB3, IMV1
Frame construction Fabricated Steel
Standards IEC 60034 / IS / 325
Degree of protection IP55 as per IS 4691
Frame size IMV1 740 – 2500
Cooling IC8A1W7
SCR (Squirrel cage rotor) / SR (Slip Ring Motor)
Insulation Class H, F with VPI
Enclosures IP55