Multi-layer insulation materials
Flexible multi-layer insulations from KREMPEL are produced by adhesive- bonding plastic films with presspaper, non-wovens, fabric or plastic-paper materials. Multi-layer insulations are normally produced as three-layer combinations whereby the plastic film is in the middle. Depending on the material combination, very specific ranges of values can be designed for the operating temperature, ductility, tensile strength, elongation, breakdown voltage, capacity for impregnation and the rigidity of the multi-layer. Special, UL-recognised grades are also available.
The combination of plastic film and fibrous material gives both technical as well as economic advantages. The plastic film guarantees the outstanding electrical and mechanical properties whereas the fibrous material ensure good impregnation and protect the film. Flexible multi-layer insulations can be cut, folded, embossed and to a certain extent, can be cold and hot-shaped as well.
Standard designs of KREMPEL multi-layer insulation materials
| Designation
|
Structure
|
Insulation class
|
Applications
|
| TRIVOLTON® H | Presspaper +
polyester film + presspaper |
B | Slot insulations, slot closures, circumferential insulations, vertical and core insulations, punched parts
|
| TRIVOLTON® HP | Polyester film +
presspaper |
B | Slot insulations, slot closures, circumferential insulations, vertical and core insulations, punched parts
|
| TRIVOLTON® HPH | Polyester film +
presspaper + polyester film |
B | Slot insulations, slot closures, circumferential insulations, vertical and core insulations, punched parts
|
| PHASOFLEX II | as TRIVOLTON HP, grained
|
B | Phase insulations
|
| TRIVOLTHERM® P | Polyester non-woven +
polyester film + polyester non-woven |
B (F) | Slot insulations, slot closures, punched parts
|
| EVITHERM | as TRIVOLTHERM P, impregnated with resin on both sides
|
F | Slot insulations, slot closures
|
| TRIVOLTHERM® TF | wie TRIVOLTHERM P, mit
beidseitiger Harzimprägnierung und besonders gleitfähiger Oberfläche |
F | Slot insulations, slot closures
|
| TRIVOLTHERM® N | NOMEX® +
polyester film + NOMEX® |
F | Slot insulations, slot closures, punched parts
|
| PHASOTHERM | NOMEX®-NK +
polyester film + NOMEX®-NK |
N | Phase insulations
|
| TRIVOLTHERM® NKN | NOMEX® +
polyimide film* + NOMEX® |
H | Slot insulations, slot closures, interleaving insulations
|
| TRIVOLTHERM® GKG | Glass fabric +
polyimide film* + glass fabric |
C | Slot insulations, conductor insulations, vertical separators
|
| AKAFOL H | Multi-layer polyester film
|
B | Insulating cylinders, punched parts
|
| AKAFOL PH-2 | Polyester film +
PEN film |
F | Inter-turn insulations
|






