SynTherm® – Insulating Materials SynTherm® VPV
SynTherm® VPV is a flexible 3-ply insulating material made of polyester film with a layer of polyester non-woven on both sides.
SynTherm® VPV is an insulating material without additional impregnants, which can be used for insulation class F (155 °C) systems after through impregnation with varnishes or resins of the corresponding insulation class. The ability of the non-woven layers to absorb impregnants results in outstanding saturation of the slot surfaces and exceptional bonding of all winding components with the laminated core.
SynTherm® VPV is characterised by its high resistance to moisture and chemicals and excellent dielectric strength. The smooth surface of the SynTherm® VPV makes the material ideal for machining.
Application
SynTherm® VPV is used as slot insulation and phase insulation in electric machines. SynTherm® VPV is used as interlayer insulation and final insulation in transformers.
Standards
- Suitable for insulation class F 155 °C systems after impregnation with high quality class F or H varnishes or resins (file-no. E247773)
Delivery forms
Film thickness in μm:
90, 120, 150, 180, 200, 230, 300, 350, 450
SynTherm® VPV can be supplied:
- in slit rolls from widths of 10 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 0.23 mm
Base
PET-film + polyester non-woven on both sides
Technical data
| Property | Unit of measure | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Nominal thickness | mm | 0.09 | 0.12 | 0.15 | 0.18 | 0.20 | 0.23 | 0.28 | 0.34 | 0.45 |
| Typical thickness | mm | 0.09 | 0.12 | 0.15 | 0.18 | 0.20 | 0.23 | 0.30 | 0.35 | 0.45 |
| Thickness tolerance max. | % | ±15 | ± 15 | ± 15 | ± 15 | ± 15 | ± 15 | ± 15 | ± 10 | ± 10 |
| Specific weight | g/m² | 80 | 115 | 145 | 190 | 220 | 260 | 350 | 425 | 555 |
| Film thickness | µm | 23 | 23 | 50 | 75 | 100 | 125 | 190 | 250 | 350 |
| Elongation at break (unfold) longitudinal | % | 15 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Elongation at break (unfold) transversal | % | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| Tensile strength longitudinal | N/10 mm | 50 | 50 | 110 | 140 | 160 | 200 | 300 | 350 | 400 |
| Tensile strength transversal | N/10 mm | 40 | 40 | 90 | 105 | 120 | 150 | 200 | 300 | 350 |
| Property | Unit of measure | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Nominal thickness | mm | 0.09 | 0.12 | 0.15 | 0.18 | 0.20 | 0.23 | 0.30 | 0.35 | 0.45 |
| Dielectric strength (unfold) | kV | 4 | 4 | 6 | 7 | 9 | 10 | 15 | 18 | 22 |