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Specifications
DMD insulation materials for transformerPolyester film/Polyester fiber non-woven fabric
F class(155)
Polymer insulator
POLYMER INSULATOR DMD/DMD PAPER COMPOSITE/ INSULALTION PAPER OIL IMMERSE
INSULATION MATERIALS FOR TRANSFORMER
INSULATING PAPER
1. Composition:
Total three Layers: Dacron+Mylar+Dacron( Two-layer polyester non-woven fiber fabric
adhered to either side of one-layer Polyester film in the center).
2. Features:
Super dielectric property.
Reliable heat resistance.
High mechanical strength.
Good impregnating performance.
3.Applications:
It is suitable for F-class motors, generators, transformers and other electric appliances
or equipment, insulation
based on slot, liners and interturn.
Technical Specification |
Unite |
Values |
|||||||||||||||||||
Thickness |
mm |
0.15 |
0.18 |
0.20 |
0.23 |
0.25 |
0.30 |
0.35 |
0.40 |
0.45 |
|||||||||||
Thickness Tolerance |
mm |
±0.02 |
±0.025 |
±0.03 |
±0.03 |
±0.03 |
±0.03 |
±0.035 |
±0.040 |
±0.045 |
|||||||||||
Nominal Grammage and tolerance |
g/ |
140±20 |
190±28 |
220±33 |
260±39 |
300±45 |
350±52 |
425±63 |
500±75 |
560±84 |
|||||||||||
Thickness of polyester film |
mm |
0.05 |
0.075 |
0.10 |
0.125 |
0.15 |
0.19 |
0.25 |
0.3 |
0.35 |
|||||||||||
Tensile Strength |
MD |
No Bending |
N/10 mm Width |
≥80 |
≥120 |
≥140 |
≥180 |
≥190 |
≥270 |
≥320 |
≥340 |
≥370 |
|||||||||
After Bending |
≥80 |
≥105 |
≥120 |
≥150 |
≥170 |
≥200 |
≥300 |
≥320 |
≥350 |
||||||||||||
TD |
No Bending |
≥80 |
≥105 |
≥120 |
≥150 |
≥170 |
≥200 |
≥300 |
≥320 |
≥350 |
|||||||||||
After Bending |
≥70 |
≥90 |
≥100 |
≥120 |
≥130 |
≥150 |
≥200 |
≥220 |
≥250 |
||||||||||||
Elongation |
MD |
No Bending |
|
≥15 |
|
|
|
||||||||||||||
After Bending |
≥10 |
≥5 |
≥3 |
|
|||||||||||||||||
TD |
No Bending |
≥20 |
|
|
|
||||||||||||||||
After Bending |
≥10 |
≥5 |
≥2 |
|
|||||||||||||||||
Breakdown Voltage |
KV |
≥6 |
≥7 |
≥9 |
≥10 |
≥12 |
≥15 |
≥18 |
≥20 |
≥22 |
|||||||||||
Bond strength at 25 degree C |
|
No delamination |
|||||||||||||||||||
Bond strength at 180 degree C |
|
No delamination,no blister,no adhesive flow |
|||||||||||||||||||
Temperature |
|
155 |
|||||||||||||||||||
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