SynTherm® – Insulating Materials SynKraft® VSP H3

SynKraft® VSP H3 is a tear-proof, flexible 3-ply insulation consisting of a polyester film with special presspaper attached to both sides.

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. On the other hand, the polyester film is protected against damages during processing by the pressboard layers.

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Application

SynKraft® VSP H3 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 60626-2
  • RoHS compliant according to 2011/65/EU
  • Test method acc. IEC 60641-2
  • Sample conditioning acc. to standard atmosphere 23/50

Delivery forms

Total thickness in μm:
70, 110, 120, 150, 200, 250, 300
other thicknesses on request


SynKraft® VSP H3 can be supplied as:

  • - in slit rolls from widths of 6 mm 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 + both sided special presspaper attached

Technical data

Mechanical
Property Unit of measure                  
Total thickness  mm  0.07 0.11 0.12 0.15 0.20 0.25 0.30 0.17 0.48
Nominal thickness of film  µm  23 23 36 36 36 36 36 75 75
Specific weight  g/m²  73 100 120 190 240 320 380 175 580
Elongation at break longitudinal  3 2 2 2.5 2.5 2.5 2.5 3 3
Elongation at break transversal  10 8 10 10 10 10 10 10 10
Tensile strength longitudinal  N/mm²  100 90 100 120 120 100 100 100 120
Tensile strength transversal  N/mm²  70 50 60 80 70 60 70 70 70
Electrical
Property Unit of measure                  
Total thickness  mm  0.07 0.11 0.12 0.15 0.20 0.25 0.30 0.17 0.48
Nominal thickness of film  µm  23 23 36 36 36 36 36 75 75
Dielectic strength  kV  7 7 9 10 10 10 10 12 12