In the power industry, oil-immersed transformers remain the backbone of high-voltage transmission and distribution systems. The reliability and lifespan of these transformers largely depend on the quality of their insulation system. XuJue specializes in producing and supplying cable paper, oil channel spacer sticks, and electrical pressboard, designed for optimum performance in oil-filled environments.
1. Cable Paper – High Purity, Low Dielectric Loss
XuJue cable paper is manufactured from 100% high-quality cellulose with no additives or conductive particles. It offers:
► Excellent dielectric strength for high-voltage insulation.
► Low dielectric loss for improved energy efficiency.
► Outstanding oil absorption and impregnation to enhance insulation reliability.
It is widely used for conductor wrapping and interlayer insulation in transformer windings.
2. Oil Duct Strip – Ensuring Effective Cooling & Stability
Oil strut belt for transformer is made of electrical board in the shape of stripe adhered to DDP(Diamond Dotted Insulating Paper).It can be combined closely with transformer coil and makes coil possess more excellent mechanical and electrical propeties.It is widely used in oil-immersed transformers.
Our products provide:
► High mechanical strength to withstand short-circuit forces.
► Thermal stability for long-term operation at elevated temperatures.
► Dimensional accuracy to ensure uniform oil gaps for efficient heat dissipation.
By improving oil circulation, spacer sticks help extend the service life of transformers.
3. Electrical Pressboard – Strong, Oil-Compatible Insulation
Electrical pressboard is a key structural and insulating component in oil-immersed transformers.
XuJue paper pressboard is produced under strict process control to ensure:
► High density and uniform structure for superior electrical properties.
► Excellent compatibility with transformer oil with no contamination risk.
► Resistance to compression and deformation under mechanical and thermal stress.
It is widely applied in spacers, barriers, and support structures inside transformers.
► Global supply capability for power transformer manufacturers and maintenance providers.
► Strict quality testing to meet IEC standards.
► Custom dimensions and shapes available for specific transformer designs.
► Proven performance in long-term field operation in over 50 countries.
For manufacturers and maintenance teams, using high-quality transformer insulation materials directly reduces the risk of failures, improves operational efficiency, and ensures stable power delivery.
Contact XuJue today to get a tailored insulation solution for your oil-immersed transformer projects.
