Transformer Insulation Component Range
All components manufactured from electrical-grade insulating pressboard with strict dimensional accuracy, surface finish, and insulation integrity checks.
Pressboard Components
Pressboard Components
Precision-machined electrical-grade pressboard components for insulation, structural suppo...
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Paper Products
Paper Products
Cellulose-based insulation paper offering dielectric strength, oil absorption, mechanical...
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Densified Wood Components
Densified Wood Components
Electrical-grade densified laminated wood components providing exceptional mechanical stre...
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FRP Components
FRP Components
Fiber-Reinforced Plastic (FRP/GRP) components engineered for superior dielectric strength,...
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Pressboard Components
Spacers and Strips – Machined parts (Plain, dovetail or trapezoidal, T-strips) that separate winding layers to create cooling oil ducts.
Cylinders / Wraps – Sleeves wrapped around the core and between winding layers for primary electrical isolation.
End Rings and Washers – Placed at the top and bottom of the winding coils to provide uniform mechanical clamping and prevent edge breakdown.
Phase and Yoke Barriers – High-dielectric sheets that block flashovers between phases or between the coils and the iron core.
Packing and Support Blocks – Mechanical components placed against clamps and frames to secure the coils tightly and handle axial forces.
Angle Washers and Moulded Parts – Pre-formed, complex segments that fit contours at the ends of windings for optimal electric field management.
Paper Products
Insulating Kraft Paper – High-purity wood pulp used for direct turn-to-turn and layer-to-layer conductor wrapping in oil-immersed transformers.
Diamond-Dotted Paper (DDP) – Features a dotted pattern of epoxy resin that bonds adjacent winding layers together upon heat curing, ensuring mechanical stability.
Crepe Paper – Wrinkled, highly flexible paper designed to wrap curved or irregular surfaces (like leads and busbars) without tearing during expansion and contraction.
Thermally Upgraded Paper – Chemically modified kraft paper designed to resist thermal aging, increasing the operational lifespan of the transformer.
Crepe Paper Tubes – Specifically engineered to insulate the lead-out wires, terminal connections, and busbars inside oil-immersed transformers, offering excellent dielectric strength and exceptional flexibility.
Densified Wood Components
Rings – Provide uniform downward compression to the transformer windings to prevent axial movement under short-circuit conditions.
Support Blocks – Positioned at the top and bottom of the coils to absorb mechanical stress and support the heavy winding structure.
Core Clamping Components & Beams – Structural frames that surround and support the laminated iron core.
Step Blocks & Spacers (Key Spacers) – Placed between winding layers to create cooling ducts and maintain strict electrical clearances.
Lead and Cleat Structures – Rigid brackets used to anchor and route heavy, high-voltage copper leads safely within the tank.
Threaded Rods & Nuts – Densified wood fasteners used in place of metal to ensure complete dielectric isolation.
FRP Components
Spacers & Cooling Ducts – Placed between winding layers to allow airflow and oil circulation while maintaining dielectric strength.
Wedges – Used to lock and secure coils tightly within the core slots to prevent mechanical vibration.
Tubes & Cylinders – FRP tubes insulate copper conductors and surround tie-rods to provide core-to-winding and phase-to-phase insulation.
Tie Rods & Threaded Rods – High-tensile, non-conductive rods used to clamp and secure the transformer core.
Channels, Angles & Profiles – Structural FRP sections (e.g., 'dog bone' or 'hat' profiles) used for spacing and support in cast-resin/dry-type transformers.
Washers, Bushes & Sleeves – Provide localized mechanical support and hardware isolation.
Common Questions
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