transformer insulation board from China manufacturer - Weifang Huisheng Insulation Technology Co., Ltd.

Place of Origin:

Shandong, China (Mainland)


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Product Detail

Model No.: H4

Usage: Others

Certification: ISO9001-2008

Type: Professional Specialty Pape...

Brand Name: Huisheng

Thickness: 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, 4.0mm, 5.0mm, 6.0mm, 7.0mm, 8.0mm
Material: 100% unbleached sulfate pulp imported from Canada, Russi

1) H4 Transformer Board

Production Description:

1) Pre-compressed Pressboard, with Quality Standard: IEC60641-3-1:1992/GB/T 19264.3-2003

2) Thickness: 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, 4.0mm, 5.0mm, 6.0mm, 7.0mm, 8.0mm

3) Material: 100% unbleached sulfate pulp imported from Canada, Russia.

4) High density, high mechanical strength, high electric strength and low compression index.

5) 4400mm*2200, 6400mm*3200mm and customized size Transformer pressboard

H4 Transformer Board Technical Specifications:

Item				Unit	Specification	Standard
Item				Unit	Specification	Standard
Thickness				mm	≤1.0mm	±6%
					≤1.5mm-1.6mm	±6%
					≤2.0mm-3.2mm	±4%
					4.0mm	±4%
					≥5.0mm	±4%
Density				g/cm3	≤1.6mm	1.05-1.20
					>1.6mm-3.0mm	1.15-1.25
					>3.0mm-6.0mm	1.20-1.30
					>6.0mm-8.0mm	1.20-1.30
Moisture				%	1.0mm-8.0mm	≤6.0%
Tensible Strength		MD		MPa	≤1.6mm	≥105
					>1.6mm-3.0mm	≥110
					>3.0mm-6.0mm	≥115
					>6.0mm-8.0mm	≥115
		CD			≤1.6mm	≥80
					>1.6mm-3.0mm	≥90
					>3.0mm-6.0mm	≥90
					>6.0mm-8.0mm	≥90
Elongation		MD		%	1.0mm-8.0mm	≥3
Elongation		CD		%	1.0mm-8.0mm	≥4
Ash Content				%	1.0mm-8.0mm	≤0.6
Shrinkage	MD		%		1.0mm-8.0mm	≤0.5
	CD				1.0mm-8.0mm	≤0.7
	TD				1.0mm-8.0mm	≤5.0
PH of Aqueous Extract				/	1.0mm-8.0mm	6.0-8.0
Conductivity of Aqueous Extract				Ms/m	≤1.6mm	≤4.5
					>1.6mm-3.0mm	≤5.0
					>3.0mm-6.0mm	≤6.0
					>6.0mm-7.0mm	≤7.0
					>7.0mm-8.0mm	≤8.0
Compression				%	≤1.6mm	≤10.0
					>1.6mm-3.0mm	≤7.5
					>3.0mm-6.0mm	≤5.0
					>6.0mm-8.0mm	≤4.0
Recoverable factor after Compression				%	≤1.6mm	≥50
					>1.6mm-3.0mm	≥55
					>3.0mm-6.0mm	≥55
					>6.0mm-8.0mm	≥55
Electrical Strength (In air)				KV/mm	≤1.6mm	≥13.0
					>1.6mm-3.0mm	≥13.0
					>3.0mm-6.0mm	≥13.0
					>6.0mm-8.0mm	≥12.0
Oil Absorption				%	≤1.6mm	≥11.0
					>1.6mm-3.0mm	≥9.0
					>3.0mm-6.0mm	≥7.0
					>6.0mm-8.0mm	≥7.0
Electrical Strength (In Oil)				KV/mm	≤1.0mm	≥45
					≥1.5mm-1.6mm	≥45
					>1.6mm-2.0mm	≥35
					>2.0mm-2.5mm	≥35
					>2.5mm-3.0mm	≥35
					>3.0mm-6.0mm	≥35
					>6.0mm-8.0mm	≥35
PLY Bond				Visual Measurement	Obvious rough, fibers coming out when tearing
Cutting Size Tolerance				mm	1.0mm-8.0mm	±10mm
Inclination Tolerance				mm	1.0mm-8.0mm	±10mm