The Electrician Laminated Wood Work Piece

Introduction of The Electrician Laminated Wood Work Piece: 1. Proper specific weight; 2. High mechanical strength; 3. Good compatibility with transformer oil; 4. Easy machining; 5. Certification: ISO9001,SGS,UL,ROHS; 6. Henan Biggest Manufacturer Of Insulation Material,Since 1958; 7. Has 150,000,000RMB(US$23.04million) of registered capital. With high-quality birch by steaming, twisting, drying and made of single plate, coated with special insu……

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Introduction of The Electrician Laminated Wood Work Piece:
1. Proper specific weight;
2. High mechanical strength;
3. Good compatibility with transformer oil;
4. Easy machining;
5. Certification: ISO9001,SGS,UL,ROHS;
6. Henan Biggest Manufacturer Of Insulation Material,Since 1958;
7. Has 150,000,000RMB(US$23.04million) of registered capital.
With high-quality birch by steaming, twisting, drying and made of single plate, coated with special insulating glue, by high temperature and high pressure made. Electrotechnical laminate is used in transformers,insulation, support components, for coil son plates, clips.

Characteristics of The Electrician Laminated Wood Work Piece:
With good insulation performance, high mechanical strength, easy to mechanical processing and so on.
Processing of The Electrician Laminated Wood Work Piece:
Qualified substrate – one immersion – secondary immersion – rotary cut – single plate drying – single plate shearing and repair – glue and set blanks – pre-press – hot pressure. (Using low-media adhesive, several layers of single board, each layer of single plate thickness of 1.2-2.2mm, crisscrossing by wood, cross- and parallel group blanks, high-pressure suppression.
The electrician laminated wood work pieceThe electrician laminated wood work pieceThe electrician laminated wood work pieceThe electrician laminated wood work piece

Application of The Electrician Laminated Wood Work Piece:
Widely used in transformers, transformers in the insulation, support materials. Its dielectric constant is close to transformer oil, and the insulation is reasonable, and it can be used in transformers at 105 degrees C for a long time. Under the action of external force and strong electric field, it will not break and will not be broken. At present, domestic and foreign has widely used electrical laminated wood materials to make insulation structural components, such as: up and down pressure plate, lead bracket, iron pad, coil insulation pressure plate, iron crucible clamps and so on. Used in transformers to make clips, it replaces steel plates, insulated cardboard, epoxy boards, and applications in this area, thus reducing the transformer’s self-weight and material costs.

Parameters:

 Item  Unit Index
Property  Density t/m3 0.9~1.1
 Rate of water content ≤ 7
 Thickness shrinkage ratio after drying % ≤ 1.5
 Oil absorption rate > 10
Ultimate thickness expansion rate after oil impregnation ≤ 0.5
 Compatibility with transformer oil Good
Mechanical Tensile strength (Parallel direction) ≥ 50
Compressive strength (Parallel direction) MPa ≥ 50
(Vertical direction) ≥ 120
 Bending strength (Parallel direction) ≥ 100
(Vertical direction) ≥ 100
 Modulus of elasticity (Parallel direction) ≥ 7000
Electrical  Volume resistivity MΩ/m ≥ 10a
Electrical strength (50Hz) 20℃transformer MV/ m ≥ 9
20℃ Transformer (Vertical)
90℃transformer ≥ 7
90℃ Transformer (Vertical)
20℃transformer KV/m ≥ 45
20℃ Transformer (Parallel)
 90℃transformer ≥ 35
 90℃ Transformer (Parallel)
20℃ Transformer Oil ≤ 0.02
Dielectric loss factor (tg δ) (50Hz) 90℃ Transformer Oil ≤ 0.13
Relative dielectric constant (∑ n) 20℃ Transformer Oil ≤ 3
90℃ Transformer Oil ≤ 3.6

 

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