Resin Impregnated Paper Dry Type Transformer Bushing

Technical Specifications

Product Structure

Main Applications

Wishpower resin impregnated paper dry type transformer bushing is suitable for:

• High voltage, medium voltage and low voltage sides of power transformers

• Distribution transformer connection systems

• Substation primary equipment

• GIS equipment and switchgear connection systems

• Reactors, capacitors and other high voltage electrical equipment

• Industrial power distribution systems

• Wind power and solar power substations

• Urban and rural distribution networks

• High pollution or high humidity operating environments

• Power projects requiring oil-free, low-maintenance and reliable insulation solutions

Testing Capability

Wishpower can provide factory tests and quality inspections according to project requirements:

1. Power Frequency Withstand Voltage Test
   Verifies the insulation strength of the transformer bushing.

2. Partial Discharge Test
   Checks the internal insulation quality and low PD performance.

3. Dielectric Loss Factor Test
   Evaluates the dielectric performance of the RIP insulation core.

4. Capacitance Test
   Confirms the consistency of the condenser grading structure.

5. Sealing Performance Test
   Helps prevent moisture ingress and ensures stable operation.

6. Mechanical Strength Test
   Verifies the strength of the flange, conductor and overall structure.

7. Visual and Dimensional Inspection
   Ensures the product meets drawing and installation requirements.

8. Creepage Distance Inspection
   Confirms that the external insulation design meets the required service environment.

Packaging & Transportation

To keep products safe during transportation and storage, we use the following packaging methods:

• Individual Packaging: Each product is wrapped with protective film, packed in a high-strength carton, and cushioned with buffer materials.
• Pallet Packaging: Multiple products are fixed on wooden pallets and wrapped with stretch film, suitable for container shipping.
• Export Packaging: Fumigated wooden cases, moisture-proof treatment, and detailed packing lists are provided according to sea freight requirements.

Customization Service

Wishpower can provide the following customization options according to customer requirements:

• Structural Dimensions: Adjust overall height, creepage distance, shed quantity, and shed diameter.
• End Fittings: Customize ball-socket, tongue-clevis, eye, or other interface types according to connection requirements.
• Color: Standard gray, with red, yellow, blue, and other colors available subject to MOQ.
• Special Environments: Formulations for extreme cold (-60 C), strong UV exposure, heavy pollution, and other harsh conditions.
• Voltage Classes: Full-range customization from 10kV to 1000kV.
• Marking: Customer logos or model numbers can be molded or printed on the product.

For specific customization requirements, please contact our sales engineers. We will provide a technical solution within 24 hours.