• Terebec TR 543-38 + AI 1013 BV /....
  Product Profile - Terebec TR 543-38 + AI 1013 BV /....

  Base Coat + Top Coat	Terebec TR 543-38 + AI 1013 BV /....
  Characteristics	High tan delta
  Recommended For Wire Size	Up to 1.6 mm dia.
  Conforming To	IS 13730-13 IEC 60317-13

  
  
• Isomid 860/35 LYC + AI 1013 BV / ....
  Product Profile - Isomid 860/35 LYC + AI 1013 BV / ....

  Base Coat + Top Coat	Isomid 860/35 LYC + AI 1013 BV / ....
  Characteristics	Suitable for high speed machines of >100 v x d
  Recommended For Wire Size	Up to 1.000 mm
  Conforming To	IS 13730-13 IEC 60317-13

  
  
• Terebec MT533-36PA + AI 1013 BV/....
  Product Profile - Terebec MT533-36PA + AI 1013 BV/....

  Base Coat + Top Coat	Terebec MT533-36PA + AI 1013 BV/....
  Characteristics	Improved flexibility
  Recommended For Wire Size	For thick round wires > 1.6 mm dia. & rectangular wires
  Conforming To	IS 13730-13 IEC 60317-13 IS 13730-28 IEC 60317-28

  
  
• Terebec SL225-40A + AI 1013 BV / ....
  Product Profile - Terebec SL225-40A + AI 1013 BV / ....

  Base Coat + Top Coat	Terebec SL225-40A + AI 1013 BV / ....
  Characteristics	Economical
  Recommended For Wire Size	0.315 to 3.000 mm dia.
  Conforming To	IS 13730-13 IEC 60317-13

  
  
• Terebec SL 225-40A + 910 Nylon
  Product Profile - Terebec SL 225-40A + 910 Nylon

  Base Coat + Top Coat	Terebec SL 225-40A + 910 Nylon
  Characteristics	Low coefficient of friction for high speed winding machines
  Recommended For Wire Size	0.315 to 1.6 mm dia.
  Conforming To	NEMA MW 1000, 24 C

  
  
• Isomid 860/35 LYC + 506 Bondall
  Product Profile - Isomid 860/35 LYC + 506 Bondall

  Base Coat + Top Coat	Isomid 860/35 LYC + 506 Bondall
  Characteristics	Bondable, for T V Deflection coils etc.
  Recommended For Wire Size	0.08 to 1.5 mm dia.
  Conforming To	IEC 60317-37

  
  

Application Note: Wire Enamels and Binder Varnishes

1. General

   The winding wire insulation is undoubtedly the most important insulating material used in the insulation system of an electrical machine. Winding wire insulation widely used are enamel, glass-fibre covering, paper covering, film covering (Polyimide, Polyester, etc.) and their combinations. Being closest to the current carrying conductor, its properties decisively influence the performance, reliability & life of electrical machine.

2. Wire Enamel as insulation & its application

   Thin film of wire enamel on conductor provides high dielectric strength coupled with thermal, mechanical and chemical resistance. Wire enamel are classified based on either (a) Chemical base, such as Polyester, Polyesterimide, Polyamide-imide, Polyurethane, etc. or (b) Thermal rating of the wire, such as Class 155, Class 200 etc. Both round and Rectangular enamelled wires are manufactured on enamelling machines in which the wire enamel is applied on annealed conductor in multicoat system. The thin film of wire enamel is cured in oven at high temperature 4500-7000C.

   Horizontal Enamelling Machine

   Generally finer wire sizes (up to 0.5 mm dia) are processed on horizontal enamelling machine. The enamel wiping is felt or Die.

   Vertical Enamelling Machine

   

   Larger wire sizes generally above 0.5 mm dia are processed on vertical enamelling machines. The wire enamel wiping is dies. Dual coat and triple coat application is widely used to combine the best properties of two or three wire enamel coating. Rectangular wires, are also manufactured on vertical enamelling machines.

3. Glass-Fibre covering with Binder varnishes

   ELANTAS Beck Insulation system offers a wide range of binder varnishes manufacture of class 155 to 200 insulated wire with glass-fibre covering. Binder varnishes based on Polyurethane Polyesterimide, Epoxy and Silicone are available. The application of binder varnishes is done on horizontal glass-fibre covering, varnishing and curing plant as shown here

   For further details please contact our Technical Services department, eMail id: shirish.gokhale@altana.com

UL Approvals