image

Preformed Coils

Preformed Coils



  • Manufacturing of Preformed Coils
  • The Preformed coil division manufactures Resin rich and VPI coils for motors, generators and other electrical equipment for class F and H.
  • To ensure consistent geometry of any configuration of coil, automated looping and forming machines are used. Our Computerized Coil Taping machine ensures crease-free taping of insulation of critical slot portion of the coil. Consolidation of cell sections of coils on sophisticated hydraulic hot press under controlled temperature and pressure ensures void-free insulation and fits properly on the motors.
  • The state-of -art Insulated conductor manufacturing facility ensures quick delivery of conductors for fabrication of coils. Static electrical tests such as, Tan Delta, High Potential and surge Test etc., on the coils ensure that every coil leaving our coil shop conforms International specifications
  • Product Portfolio

    image

      Using best insulation material available, we supply the following types of preformed coils:

    • Stator coils
    • Lifting magnet/vibrator coils
    • Field/inter-pole coils
    • Armature coils
    • The insulation materials used in the manufacturing of these coils are:

    • Nomex Tape
    • Mica Tape for single conductor insulations and Coil Insulations
    • Kapton Tape
    • VPI insulations


    Facility

    image

      The conductor for coils is manufactured in our own factory in strict adherence to IEC 60317 specifications. The coils are made to the drawing specifications provided by the customer or by reverse engineering at our facility.

      Each coil is subjected to the following tests:

    • Dimensional check
    • Ohmic resistance test
    • Surge comparison test
    • High voltage test
    • Coils above 5000 volts are tested for tan delta test as per International Standards
    • Test reports are presented to clients as a standard practice