PRODUCTS

High Temperature & Heat Resistant Application

Pressboard Strip PSP3052 (Transformer strip)

Pressboard PSP3052 (Transformer Board PSP3052) 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.

Category:

Transformer Field

Keywords:

POWERWELL

Hotline:

+86-731-8229 9698

, 8224 3908

Online consultation

DESCRIPTION

Type B 3.1 in according to IEC 641-1

Description

Features

Insulation class A (105 °C)

Natural-coloured

Hot-pressed Pressboard, 100 % sulphate pulp

High hardness and stiffness

Low shrinkage and compatibility

High purity and mechanical strength

Good compatibility with liquid dielectrics

Further processing is ensured since the pressboard can be punched, folded, cut and formed without difficulty.

Applications

To use as insulations material in Power and Distribution Transformers

It is the base material for components like cyclinders, strips, spacers, rings. washers, plates, machine formed and moulded parts, punchings and laminates.

TRANSFORMER OIL DUCT STRIP DATA SHEET

PRESSBOARD STICK4*5*1000MM

ITEM	TYPICAL VALUES	MATTER OF FACT
Thickness: mm	4mm±7.5%	4.1-4.3mm≤7.5%
Width	5±0.5mm	4.95-5.38mm≤0.4mm
Length of 1000mm:	±5mm	1000±3 mm
Pitch of stick centre:	±3mm	23±2 mm
Apparent density: g/cm3	1.1-1.2	1.18
Moisture content ,%	4.0 to 9.0%	5.7
PH water extract:	6.0 to 9.0	6.8
Ash content,% maximum	1%	0.51
Tensile strength Mpa Machine direction: Cross machine direction:	≥90 ≥50	107.4 101.3
Oil absorption	≥7.0%	12.29
Shrinkage rate% MD CMD Thickness D	≤1.0 ≤1.4 ≤6.0	0.16 0.25 ≤5
Elongation rate MD CMD	≥3 ≥4	≥4.4 ≥4.4
Conductivity of aqueous extract Ms/m	≤10.0	5.03
Dielectric breakdown:(Kv/mm )In Air In Oil	10 24	16.7 35.7