Paper Insulation for Transformer

 

Paper Insulation for Transformer is one of the main insulating materials of oil-immersed transformers. Since power transformers have to withstand intermittent mechanical stress, tension, pressure, torsion, and the impact of atmospheric over voltage and internal over voltage during operation, it has a great impact on Insulating materials are very demanding.

 

Therefore, the insulation paper produced by our company strictly controls the quality to meet the application requirements of transformers.According to more than a century of practical experience, the best insulating material for large-scale high-voltage electronic transformers is oil-impregnated fiber material, mainly insulating paper and insulating cardboard.

 

 

 

 

 

 

1.Electrical insulating paper is used as a base material for flexible materials, such as PMP, DDP, etc.

2.As a base material for oil duct strip

3.Directly applied to transformer windings

 

 

Thickness: 180μm
Width: customized 

No	Item		unit	Q/JLLS 20471-2023 Requirement	DLD-180 Result
	Thickness		μm	180+5%	181
2	Density ≥		g/cm³	0.90	0.90
3	Tensile strength ≥	MI)	kN/m	13.0	16.8
		CD)		6.0	9.1
4	Elongation ≥	MI)	%	2.0	2.9
		CD		4.0	7.7
5	Tearing resistance ≥	CI)	mN	1390	2240)
6	Electrical strength(AC) ≥		kV/mm	8.0	8.7
7	pH of watr extract			6.5-8.5	7.4
8	Conductivity of water extract		mS/m	10.0	3.0
9	Air permcability ≤		ml/min	35	18
10	Ash content ≤		%	0.7	0.3
11	Moisture content		%	6.0-9.0	7.1
12	Smoothness		S	30	39

 

 

We are a professional manufacturer of insulation materials, support ODM/OEM, please contact us to get free samples

 

 

 

Paper Insulation for Transformer packaged in wooden crates, wooden framed cases or other strong enough materials covered with moisture-proof materialoutside.Gross weight of each package not exceeds 3000kgs.

 

▲ Principle

High quality products, excellent service and a good reputation.

 

▲ Service
Effective communication within 24 hours
New design and style collection updating for customer.

 

▲ Quality Contral
5 quality control staff
Providing relative solution
Test the raw materials and give a report
ISO,CE ,SGS approved.

 

 

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