Insulation Pressboard for Low Voltage Transformer

• Application: Insulators, Electrical Winding Insulation, Winding Wire Coating Insulation, Electrical Base, Shell, Motor, Insulating Varnish, Switch Baseplate
• Type: Insulation Paper
• Chemistry: Organic Insulation
• Material: Paper
• Thermal Rating: A 105
• Maximum Voltage: 20KV~100KV
• Model NO.: pressboard
• Classification: Organic Insulating Material
• Certification: ISO9001
• Color: Brown
• Brand: No
• Thickness: 0.05mm - 30mm
• Roll Width: 1000mm
• Sheet Size: 1000mm X 2000mm
• Delivery Time: 15 -20days
• Transport Package: Pallet
• Specification: 0.05mm-30mm
• Trademark: chr
• Origin: China
• Production Capacity: 30mt/Week

Product Description

Product Description

 

Product Description

Transformer insulating Pressboard

Heat-resistance:   A Class(105°C)
Electrical Insulation Pressboard is a special product based on pure cellulose taken from long-fibred coniferous wood. This is structured into a fibrous tissue without additional adhesive and then pressed. Due to its high chemical purity, pressboard is excellently suited as an insulation material in electric machines, capacitors and oil-filled transformers.  100% wood or cotton thick board is characterized by its high density.
Size: 0.1-0.5X1000mm         0.8-30mmx1mx2m  
Color: brown, blue, dark green color



 Features
   

1. Insulation class A (105 °C)
2. Hot-pressed Pressboard, 100 % sulphate pulp
3. High mechanical and electric strength, 
4. Uniform clear color, 
5. Uniform thickness, stable density and moisture content, good elongation and evenness. 
6. Excellent flexibility, strong applicability. 
7. The density deviation along CD direction of each single layer wet paper sheet must be controlled within the limits±1.5% comparing with the standard 
8. Ability of supply 8mm Transformer Pre-compressed Pressboard continuously. 
9. The primary quality is better than standard IEC60641-3-1. 
10. DCS control during producing process, to guarantee stable quality. 
11. Stable and reliable Insulation component sizes. 
12. Complete advanced Hi-tech testing and experimental facilities. 
13. The whole sets of testing facilities provide support for Lab testing processes right from analysis of Fiber micro structures      to pulp-beating, pressing, drying, shaping and controlling etc.
14. High hardness and stiffness
15. Low shrinkage and compatibility
16. High purity and mechanical strength
17. Good compatibility with liquid dielectrics
18. Further processing is ensured since the pressboard can be punched, folded, cut and formed without difficulty.

 
Applications
Typical applications of laminated TRANSFORMERBOARD are pressure rings, static rings, beams, clamping plates and support strips etc. in power, distribution and special transformers.
 

Data Sheet:

Index.		Unit	Values
	electrical presspahn Cardboard transformer insulation pressboard			≤1.6	>1.6~3.0	>3.0
1	Nominal thickness tolerance		%	≤10(±)
2	Nominal Grammage		g/cm3	1.00~1.20	1.00~1.25	1.15~1.30
3	Shear strength,M.D.		Mpa	≥100	≥105	≥110
4	Shear strength,C.M.D.		Mpa	≥75	≥80	≥85
5	Elongation (M.D.)		%	≥3.0
6	Elongation (C.M.D.)		%	≥4.0
7	Shrinkage		%	≤10.0	≤7.5	≤5.0
8	Shrinkage which would resume		%	≥45	≥50	≥50
11	Shrinkage:	M.D.	%	≤0.5
		C.M.D.		≤0.7
		Thickness direction		≤4.0
12	Moisture content		%	≤6.0
13	Ash content		%	≤1.0
14	Electrical conductivity of aquesous extract		ms/m	≤1.6	>1.6~3.0	>3.0
15	Aquesous extract (PH)		-	6~9
16	Oil absorption		%	≥11.0	≥9.0	≥7.0
17	Voltage resistant strength(In air)		MV/m	≥12	≥11	≥10
18	Voltage resistant strength(In oil)		MV/m	≥40	≥35	≥30

 

Detailed Photos

 

 

FAQ

Q: How will you pack the product?
A: We pack with paper cartons&PALLETS
Q: Do you accept OEM?
A: Yes, we do.
Q: Do you provide free sample? And how many days it will take?
A: Yes, we provide free sample. We will make the sample within 5 working days and it will take 3-7days on the transportation.
Q: What's your delivery time?
A: We can efficiently control the production time, and then for the delivery time, it is 5-20 working days based on detailed size and quantity.
Q: Which certification do you have?
A: The plant has passed the certificate of lSO 9001 quality system certification;
Q: What's your payment term?
A: We accept T/T,L/C, Western Union, Paypal,Escrow,or customized if it is acceptable.
Q: Which shipping method is there?
A: Air,Sea, Land, Rail,Choose the most suitable shipping method according to the quantity of your goods.