TRANSFORMER PAPER TAPES
Different tape sizes are silt from our various transformer paper types
- Widths of between 6mm to 60mm
- 6mm and 8mm widths are made to order
- 10, 13, 16, and 19mm widths are standard and available as stock items.
- Facilities are available to slit other widths on request
- Related Products
CONDUCTOFOL ® 2159
CONDUCTOFOL ® 2159 consists of mica paper based on calcined muscovite impregnated with resin and both sides are covered with a PET-film whereas one side is additionally coated with a special adhesive. The adhesive on the thicker PET-film melts at temperatures above 100 ºC and conductors with CONDUCTOFOL ® 2159 can be glued together in a hot press.
CONDUCTOFOL ® 2159 is used e.g. for the insulation of rectangular copper conductors for low and high voltage coils
Format Rolls maximum width 1000 mm Tape from 6 mm width upward Standard 9, 12, 15, 20 mm
Minimum 24 months at 20ºC
Minimum 48 months at 5ºC
Pressing conditions for preconsolidation:
Best bonding will be achieved at 160 ºC. In addition the adhesive on the PET-film improves bonding of the main insulation (VPI- or RR-system) to the conductor bundle. The conductor bundle covered with a release film is put into a hot press at 120 – 160 ºC and pressed for 1-5 minutes. Before opening the press is is recommended to cool down below 100 ºC.
The thicker the PET-film is coated with an adhesive
Untreated Glass Tape
An electrical insulating tape woven from E22 Electrical Grade glass yarn, treated to avoid fraying – unvarnished.
THERMAL RATING: CLASS H 180°C
DIELECTRIC STRENGTH: Max 800V without impregnation with varnish.
APPLICATION: As finishing and consolidating tapes in most electrical apparatus where high temperatures are experienced. Also used on low voltage machines as a major insulation barrier. Final insulation properties depend largely on the impregnating varnish or resin used.
TO SPECIFICATION: BSS 3779 TYPE 2
CONTAFEL ® H 0865
CONTAFEL ® H 0865 consists of polyester fleece impregnated with a special varnish containing carbon black. CONTAFEL ® H 0865 is highly flexible and absorbent.
CONTAFEL ® H 0865 is used as inner and outer corona protection for coils and bars of high voltage machines in VPI as well as for Resin Rich process.
Format Rolls maximum width 950 mm Tapes from 20 mm width upward
CONTAFEL ® H 0865 can be stored 2 years under normal conditions (20 ºC; 50% humidity).