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Transformer Presspaper----[[LIREN ELECTRICAL INSULATION MATERIALS]]
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Transformer Presspaper

 

Description:

Transformer Presspaper is a high grade calendered insulation paper made with 100% unbleached sulphate wood pulp.

This product has high purity, mechanical strength and electrical strength, low shrinkage, and good oil-impregnability.

Application:  
Transformer Press-paper is widely used in oil-filled power transformers and distribution transformers, reactors, electric motor, and other electrical machines and appliances. 

Technical Data:                  

Properties

Units

LR-PP4 Transformer Presspaper Typical Value

Nominal Thickness

mm

0.10

0.15

0.20

0.30

0.40

0.50

0.80

1.0

1.6

2.0

Thickness Tolerance

%

10

10

10

10

10

10

7.5

7.5

7.5

5.0

Density

g/m3

1-1.25

1-1.25

1-1.25

1-1.25

1-1.25

1-1.25

1-1.25

1-1.25

1-1.25

1-1.25

Tensile

Strength

MD

MPa

80

80

80

80

80

80

120

120

120

120

TD

MPa

40

40

40

40

40

40

45

45

45

45

Elongation

MD

%

4.5

4.5

4.5

4.5

4.5

4.5

3.5

3.5

3.5

3.5

TD

%

6

6

6

6

6

6

8

8

8

8

Dielectric

Strength

In Air

KV/mm

9

9

9

9

9

9

9

8

8

8

In Oil

KV/mm

35

35

35

35

35

35

30

30

30

30

Shrinkage

MD

%

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

TD

%

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

Ash Content

%

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

Moisture content

%

9

9

9

9

9

9

9

9

9

9

Conductivity of

aqueous extract

mS/m

8

8

8

8

8

8

8

8

8

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Standard Sheet Size: 1000x1000mm, 1000x2000mm;

Standard Roll Size: 1000mm width, core ID 76mm; special size on request.

 

Notes: The technical information and data, recommendations, and other statements provided are based on tests or experience which we believes to be reliable, but the accuracy or completeness of such information is not guaranteed. Before using this product, you must evaluate it and determine if it is suitable for your intended application.

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