SynTherm® – Insulating Materials SynKraft® VSP H2

SynKraft® VSP H2 is a tear-proof, flexible 2-ply insulation consisting of a polyester film with special presspaper attached to one side.

The pressboard displays good absorption of impregnants, resulting in exceptional bonding between all winding components after impregnating.
The polyester film improves the electrical and mechanical properties of the pressboard layer in the composite material, especially the resistance to tears, and provides excellent gliding properties for an automatic winding feed. On the other hand, the pressboard layer facing the laminated core is protected by the polyester film during processing.

Download datasheet

Application

SynKraft® VSP H2 is used as an extremely costeffective slot insulation and slot closure in stators and rotors, especially for small motors, and is often applied as interlayer insulation and final insulation in small transformers.

Standards

  • Class B (130 °C) insulating material
  • Insulation according to IEC 60626
  • Test method IEC 60641-2
  • Sample conditioning acc. to standard atmosphere 23/50

Delivery forms

Total thickness in μm:
100, 130, 180, 230, 280, 330, 380


SynKraft® VSP H2 can be supplied as:

  • in slit rolls from widths of 6 mm (depending on thickness) and above
  • in rolls approx. 630 mm or 1,260 mm
  • in sheets approx. 630 mm x 800 mm or approx. 800 mm x 1,260 mm


Feathering:

  • depth approx. 1 - 12 mm, distance approx. 1 - 10 mm
  • from widths of 10 to 240 mm and thickness of 0.20 mm

Base

PET-film + one-sided special pressboard overlay

Technical data

Mechanical
Property Unit of measure
Total thickness mm 0.10 0.13 0.18 0.23 0.28 0.33 0.38
Nominal thickness of film µm 23 23 23 23 23 23 23
Specific weight g/m² 115 165 215 290 350 430 500
Elongation at break longitudinal % 3 3 3 5 5 5 5
Elongation at break transversal % 10 10 10 13 13 13 13
Tensile strength longitudinal N/mm² 100 85 90 90 90 85 90
Tensile strength transversal N/mm² 65 60 60 60 60 60 60
Electrical
Property Unit of measure
Total thickness mm 0.10 0.13 0.18 0.23 0.28 0.33 0.38
Dielectic strength kV 7 7 7 8 8 9 9