Trafoboard® HD-PH

Pressboard

High-performance insulation products for oil filled power transformers

The experience of one century

For almost one century Röchling has been manufacturing the insulation material Lignostone® Transformerwood® for use in high-voltage transformers. This outstanding material enjoys an excellent reputation within the international transformer industry.

With Trafoboard^® HD-PH Röchling now completes their range of insulation materials to a high-quality laminated pressboard for insulation components in oil-filled high-voltage transformers.

Trafoboard^® HD-PH represents a high level of quality, excellent electrical and mechanical properties, high chemical purity and close tolerances.

Trafoboard^® HD-PH has a density of 1.15 –1.35 g/cm³ and consists of highly densified pressboard layers made of pure cellulose according to IEC 60641, which are bonded permanently by means of phenolic glue according to IEC 60763 type LB 3.1A.2.

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Characteristics

Phenolic-resin glued pressboard according to IEC 60763-3-1 type LB 3.1A.2
Made from hot pressed transformer pressboard, 100% unbleached sulphate cellulose, according to IEC 60641-3-1 type 3.1
Electrically insulating
Good mechanical properties

Industries

Application Examples

Trafoboard® HD-PH fasteners

For the construction of oil-filled transformers we offer you Trafoboard^® HD-PH fasteners made from laminated pressboard with phenolic resin bonding. The unique phenolic resin bonding of Trafoboard^® HD-PH offers highest electrical properties andcontributes to the increased operational reliability of oil-filled transformers.

Construction components

With Trafoboard^® HD-PH, we offer a laminated pressboard for insulation parts in oil-filled high-voltage transformers. Trafoboard^® HD-PH connects outstanding electrical and mechanical properties with a high chemical purity. Röchling closely cooperated with the university of Osnabrück in development. Renowned manufacturers rely on insulation parts made of high-quality laminated pressboard.

Variants

Show product in Webshop

	SKU	Name	Type	Measurements
No stock item (MOQ)	290911	Trafoboard® HD-PH pressed	sheet	4.150 x 2.150 x 50 (+/-2) mm
No stock item (MOQ)	296297	Trafoboard® HD-PH pressed	sheet	4.150 x 2.150 x 40 (+/-1,6) mm
No stock item (MOQ)	296298	Trafoboard® HD-PH pressed	sheet	4.150 x 2.150 x 60 (+/-2,4) mm
No stock item (MOQ)	296729	Trafoboard® HD-PH pressed	sheet	4.150 x 2.150 x 20 (+/-2) mm
No stock item (MOQ)	296733	Trafoboard® HD-PH pressed	sheet	4.150 x 2.150 x 28 (+/-2) mm
No stock item (MOQ)	299527	Trafoboard® HD-PH pressed	sheet	4.150 x 2.150 x 30 (+/-1,2) mm
No stock item (MOQ)	299549	Trafoboard® HD-PH pressed	sheet	4.150 x 2.150 x 60 (+/-2,4) mm
No stock item (MOQ)	302547	Trafoboard® HD-PH pressed	sheet	4.150 x 2.150 x 10 (+/-0,5) mm
No stock item (MOQ)	302548	Trafoboard® HD-PH pressed	sheet	4.150 x 2.150 x 11 (+/-0,55) mm
No stock item (MOQ)	302549	Trafoboard® HD-PH pressed	sheet	4.150 x 2.150 x 12 (+/-0,6) mm

Technical Specifications Trafoboard® HD-PH

General properties

	Test Method	Unit	Guideline Value
Density	DIN EN ISO 1183-1	g / cm³	1.15 - 1.35

Mechanical properties

	Test Method	Unit	Guideline Value
Flexural strength ┴ (MD)	IEC 60763-2	MPa	120
Flexural strength ┴ (CMD)	IEC 60763-2	MPa	110
Flexural modulus ┴ (MD)	IEC 60763-2	MPa	13000
Flexural modulus ┴ (CMD)	IEC 60763-2	MPa	10500
Compressibility (C)	IEC 60763-2	%	2.6
Compressibility (Crev)	IEC 60763-2	%	93

Thermal properties

	Test Method	Unit	Guideline Value
Insulation class	IEC 60085	/	A

Physical properties

	Test Method	Unit	Guideline Value
Shrinkage (MD)	IEC 60763-2	%	0.20
Shrinkage (CMD)	IEC 60763-2	%	0.30
Shrinkage (Thickness)	IEC 60763-2	%	1.50
Moisture content	IEC 60763-2	%	5
Oil absorption	IEC 60763-2	%	10
pH of aqueous extract	IEC 60763-2	pH	7.1

Dielectrical properties

	Test Method	Unit	Guideline Value
Field strength at the onset of PD II	HS-OS ^1)	kV / mm	10
Conductivity of aqueous extract	IEC 60763-2	mS/m	7.1
Electric strength in oil at 90° C II	IEC 60243-1	kV / mm	> 9

Downloads

Technical Data Sheet

Technical Data Sheet Trafoboard® HD-PH

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