China Transformer Laminated Wood

Electrical laminated wood
Introduction:
Electrical laminated wood is widely used as insulating and supporting material in transformers and instrument transformers. It has many virtues such as moderate specific gravity, high mechanical properties, easy vacuum drying, easy mechanical processing etc. The dielectric constant of this material is close to transformer oil, so it makes a reasonable insulation match. And it can be used in transformer oil of 105°C for long time.
Specification

CapabilityUnitModel Technique targetRings technique target P3BC1BC2BC3BC4BT2BT3B Appearance densityg/cm31.1~1.20.7~0.90.9~1.11.1~1.21.2~1.30.9~1.11.2~1.3 Moisture%≤6≤6≤6≤6≤6≤6≤6 Vertical layer direction flexural strengthDirection
AMPa≥150≥45≥55≥65≥80Diameter>1000mm≥100≥140 Direction
BDiameter≤1000mm≥90≥125 Vertical layer direction modulus of elasticityDirection AGPa≥14≥4.5≥6≥8≥9≥10≥13 B Compressibility(Below 20MPa)C%≤3≤5≤4≤3≤2.5≤5≤4 Crev≥70≥70≥70≥70≥70≥70≥70 Impact strength
(side test)AKJ/m2≥35≥6≥10≥13≥15≥25≥35 B Shear strengthMPa≥8≥5≥7≥8≥9≥7≥9 Vertical layer direction
Electric trength
In (90±2)ºC OilKV/mm≥11≥9≥10≥11≥12≥10≥10 Parallel layer direction
Electric trength
In (90±2)ºC OilKV≥50≥50≥50≥50≥50≥50≥50 Shrinkage after driedDirection A%≤0.2

≤0.5

≤3≤0.3

≤0.3

≤3≤0.3

≤0.3

≤3≤0.3

≤0.3

≤3≤0.3

≤0.3

≤3Girth≤0.5≤0.5 Direction A ≤3≤3 Thickness Oil absorption%≥8≥20≥15≥8≥5≥10≥5 Contamination to liquid dielectric
(Δtanδ)-≤0.1≤0.1≤0.1≤0.1≤0.1≤0.1

Standard length
: 2000mm X 1000mm & 2400mm X 1200mm& 3000mmx1500mm ,&3000x2400mm&2000mmx2000mm
Thickness: 10.0mm - 120mm
•Laminated Compressed Wood Sheets for electrical purpose: Confirming to IEC & DIN standards in
Low, Medium & High density
•Components can be supplied as per customer drawing & specifications.