Three Phase Motor

Foot Mounted Motor

Flange Mounted Motor

Face Mounted Motor

2 Pole& 4 Motors

6 Pole& 8 Motors

Mechanical Features

Non standard motors

Features

  • Speed: 750 / 1000/ 1500/ 3000 rpm
  • Volt: 42v/48v/110v/220v/380v/440v/670v
  • Special motors to use with invertors
  • Fitted with SKF Bearings
  • Duty cycle S1, S2, S3, S4 & S7

Application

  • Compressors, Blowers, Fans
  • Vacuum pumps, Air curtains
  • Printing Machinery
  • Knitting Machines
  • Drilling Machines
  • Buffing & Polishing Machines
  • Mosaic floor polishing machines
  • Grinders

 Standards

IS:325 Three phase Induction motors-specification.
IS:900 Code of practice for installation and maintenance of Induction motors.
IS:1231 Dimensions of Foot mounted A.C. Induction motors.
IS:2223 Dimensions of Flange mounted A.C. Induction motors.
IS:4029 Guide for testing Three phase Induction motors.
IS:4691 Degree of protection provided by Enclosures for Rotating Electrical Machinery.
IS:6362 Designation of Methods of Cooling for Rotating Electrical Machines.
IS:12065 Permissible limits of noise level for Rotating Electrical machines.
IS:12075 Mechanical Vibration of Rotating Electrical machines
IS:12615 Energy Efficient Induction Motors Three phase Squirrel Cage.

International Standards

IEC 60034-1, 5 Rotating Electrical Machines – Rating and Performance, Degrees of Protection
IEC 60072 Dimension and output ratings of Rotating Electrical machines.
  • Insulation – Class F
  • Supply – 415v, 50Hz
  • Standard cooling – Totally enclosed fan cooled
  • TENV on request
  • External forced cooling on request
  • Enclosure – (IP 54 or IP 55 on request)

Stator Frames and End Shields

  • These are rugged components of cast iron confirming to IS 210
  • The stator frames are of deep fin construction to ensure adequate cooling surface

Terminal Box

  • Terminal box is located on the right hand side of the motor when viewed from ‘D’ end
  • The terminal box is turnable at 90o to permit cable entry from any direction
  • Multi mount option is available on request

Rotor and Shaft Assembly

  • Pressure die-cast aluminium rotors
  • Dynamically balanced for vibration free operation

Stators

  • All copper windings, copper wires confirm to IS 4800 – Part V
  • Surge tested for short grounds and phase unbalance
  • Multiple dips protect against heat, moisture and contaminants
  • Wound Stators are Vacuum Impregnated with high temperature insulating varnish.  A final dip in red epoxy insulating enamel provides a protective over coat
  • 80 Frames is available with multimount option

Insulation

  • class F
  • Non-hygroscopic, high dielectric and mechanical strength
  • Epoxy coating provides additional protection
  • Class H on request

Bearing

  • Cast iron housing
  • Double side shielded bearing upto 100 frame
  • Pre-packed lubricants from SKF BEARING

Testing

  • All motors are tested in the course of manufacture and before dispatch as per relevant Bureau of Indian Standards (IS 325) and EN60034-1

Ranges

  • Range   : 0.18 KW (0.25 HP) to 22 KW (30 HP)
  • Speed  : 350/500/750/1000/1500/3000 rpm

Standard Motors

K.W

H.P

2 Pole
3000
RPM

4 Pole
1500
RPM

6 Pole
1000
RPM

8 Pole
750
RPM

0.09

0.125

56

56

71

71

0.12

0.16

56

63

71

71

0.18

0.25

63

63

71

80

0.25

0.33

63

71

71

80

0.37

0.5

71

71

80

90S

0.55

0.75

71

80

80

90L

0.75

1.0

80

80

90S

100L

1.1

1.5

80

90S

90L

100L

1.5

2.0

90S

90L

100L

112M

K.W

H.P

2 Pole
3000
RPM

4 Pole
1500
RPM

6 Pole
1000
RPM

8 Pole
750
RPM

2.2

3.0

90L

100L

112M

132S

3.7

5.0

100L

112M

132S

160M

5.5

7.5

132S

132S

132M

160M

7.5

10.0

132S

132M

160M

160L

9.3

12.5

132M

160M

160L

180M

11.0

15.0

160M

160M

160L

180L

15.0

20.0

160M

160L

180L

200L

18.5

25.0

160L

180M

200L

225S