Description

Plywood is produced by gluing together, in high temperature (145-150ºC) and under high pressure (6-12 MPa), beech veneers 2 mm thick bonded with special phenol-formaldehyde resin.

Structure of transformer plywood can be crossed when the grain in neighbouring layers is at right angle and parallel with the grain laid parallel in each layer.

Features

Excellent dielectric and mechanical properties

Applications

it is widely used for production of power transformers.

Available

1500 x 1000 mm

1000 x 1500 mm

2000 x 1000 mm

Standard sizes

Tolerances of length and wild of the panels: 0,5 ± mm

Thickness: 5-120mm cross build

15-120mm parallel build

Test report

Transformer Plywood is a specialized engineered wood product meticulously designed for demanding electrical applications, particularly in the power industry. It is manufactured through a high-precision process where 2 mm thick beech veneers are bonded under high temperature (145-150ºC) and high pressure (6-12 MPa) using a special phenol-formaldehyde resin. This rigorous production method ensures a dense, stable, and highly durable panel with exceptional performance characteristics.

The structure of Transformer Plywood is a key factor in its reliability. It features either a cross-grained construction, where the grain direction in adjacent layers is perpendicular, or a parallel build, with the grain laid parallel in each layer. This engineered structure provides outstanding dimensional stability and mechanical strength, preventing warping or delamination under operational stresses. The most significant features of this Transformer Plywood are its excellent dielectric and mechanical properties. It serves as a robust and reliable insulating material, capable of withstanding high voltages and harsh environmental conditions within electrical equipment.

Due to its superior performance, Transformer Plywood is widely used for the production of power transformers. It acts as a critical structural and insulating component, such as in core supports and clamping structures, ensuring the long-term integrity and safety of the transformer unit. The material is available in versatile panel sizes including 1500 x 1000 mm, 1000 x 1500 mm, and 2000 x 1000 mm. Standard dimensional tolerances for length and width are maintained at a precise ±0.5 mm. The thickness range is comprehensive, offering 5-120 mm for cross-built panels and 15-120 mm for parallel-built panels, providing flexibility for various design requirements. The product's quality and compliance with stringent industry standards are further validated by a detailed test report, confirming its electrical and physical properties.