Products

Insulation paper for transformer manufacture

Every product is made to your specified thickness, dual-ply as standard, from 100% imported virgin fibre under de-mineralised process conditions, and tested batch by batch against IS 8570 / IEC 60554.

  • 1.5–10 mil
  • Widths to 2500 mm
  • Dual-ply standard

Specification comparison

Comparison of thickness range, width, compliance and applications by product
Product Thickness range (tailor-made) Width Compliance Applications
Electrical Grade Insulation Kraft Paper 1.5 mil to 10 mil Up to 2500 mm IS 8570 / IEC 60554 Transformer interleaving, Conductor covering, Conductor winding and covering, Bushings, Distribution transformers, Power transformers
High Density Kraft Paper 3 mil to 10 mil Up to 2500 mm IS 8570 / IEC 60554 Transformer interleaving, Bushings, Distribution transformers, Power transformers
Diamond Dotted Paper (DDP) 3 mil to 10 mil Up to 2500 mm IEC 60554 Insulation between coils in oil-immersed transformers, Cable insulation
Diamond Dotted Paper HD (DDP-HD) 3 mil to 10 mil Up to 2500 mm IS 8570 / IEC 60554 Insulation between coils in oil-immersed transformers

Electrical Grade Insulation Kraft Paper

Insulation kraft paper in a thickness range of 1.5 mil to 10 mil, made to your specified thickness from 100% imported virgin fibre under de-mineralised process conditions.

  • Transformer interleaving
  • Conductor covering
  • Conductor winding and covering

Full specifications: Electrical Grade Insulation Kraft Paper

High Density Kraft Paper

High density electrical grade insulation kraft paper in a thickness range of 3 mil to 10 mil, made to your specified thickness for applications that call for higher density.

  • Transformer interleaving
  • Bushings
  • Distribution transformers

Full specifications: High Density Kraft Paper

Diamond Dotted Paper (DDP)

Electrical insulating paper from 3 mil to 10 mil, coated with heat-curable epoxy resin, for oil-immersed transformer coil insulation.

  • Insulation between coils in oil-immersed transformers
  • Cable insulation

Full specifications: Diamond Dotted Paper (DDP)

Diamond Dotted Paper HD (DDP-HD)

Diamond Dotted Paper on a high density base, 3 mil to 10 mil, coated with heat-curable epoxy resin for oil-immersed transformer coil insulation.

  • Insulation between coils in oil-immersed transformers

Full specifications: Diamond Dotted Paper HD (DDP-HD)

Our specialties

  • Exclusive manufacturer of insulation kraft paper
  • Customised width up to 2500 mm
  • Quick delivery
  • Tailor-made thickness, range 1.5 mil to 10 mil

Our strengths

  • Dual-ply (twin layer) as standard on all production
  • 6,000 tonnes annual capacity
  • ISO 9001:2015 certified company
  • IS 8570 / IEC 60554, ERDA approved
  • JVVNL, BHEL, Toshiba, Alstom approved

Need a specific thickness?

Tell us thickness, width and volume, and we quote against your specification.

Request a Quote
Tomoegawa Co., Ltd., opens in a new tab