Product Details

Specifications

DMD insulation materials for transformer
Polyester 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

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

0.15

0.18

0.20

0.23

0.25

0.30

0.35

0.40

0.45

Thickness Tolerance

±0.02

±0.025

±0.03

±0.035

±0.040

±0.045

Nominal Grammage and tolerance

140±20

190±28

220±33

260±39

300±45

350±52

425±63

500±75

560±84

Thickness of polyester film

0.05

0.075

0.10

0.125

0.15

0.19

0.25

0.3

0.35

Tensile Strength

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

No Bending

≥80

≥105

≥120

≥150

≥170

≥200

≥300

≥320

≥350

After Bending

≥70

≥90

≥100

≥120

≥130

≥150

≥200

≥220

≥250

Elongation

No Bending

≥15

After Bending

≥10

≥5

≥3

No Bending

≥20

After Bending

≥10

≥5

≥2

Breakdown Voltage

≥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