Introduction
Medium voltage systems play a vital role in modern electrical infrastructure, bridging the gap between high voltage transmission and low voltage distribution networks. The efficiency, safety, and reliability of these systems largely depend on high-quality components that can withstand electrical, thermal, and mechanical stresses. Among these components, 12KV/24KV epoxy resin bushings have emerged as a critical solution for engineers and technicians working with medium voltage equipment. These bushings are specifically designed to provide robust insulation, mechanical stability, and environmental protection, ensuring the safe operation of transformers, switchgear, current transformers, and other high-voltage devices.

Degatech’s 12KV/24KV epoxy resin bushings combine advanced materials, precision engineering, and customizable features, making them ideal for applications in a variety of industries, including power generation, industrial plants, and renewable energy projects. Their versatility and durability make them a preferred choice for medium voltage installations that demand long-term performance and reliability. For detailed information on these products, visit Degatech Switchgear Products.

What is an Epoxy Resin Bushing?
An epoxy resin bushing is an electrical insulation component that allows a high-voltage conductor to pass safely through a grounded metal enclosure, such as a transformer tank or a switchgear cabinet. Unlike traditional porcelain bushings, epoxy resin bushings offer superior mechanical strength, lightweight design, and enhanced resistance to environmental stresses. They are typically composed of unsaturated polyester resin reinforced with glass fibers, forming a strong, durable composite material capable of handling both mechanical loads and electrical stress.

The bushing also contains metal inserts, usually made from brass, iron, or aluminum. These inserts provide reliable electrical connections while maintaining mechanical stability and ensuring a secure interface between the conductor and the equipment. Epoxy resin bushings are designed to prevent electrical leakage, minimize the risk of short circuits, and reduce maintenance requirements over their operational lifetime.

By integrating modern composite materials with innovative design, epoxy resin bushings improve the safety, efficiency, and lifespan of medium voltage systems. Their ability to withstand temperature fluctuations, environmental exposure, and electrical stress makes them indispensable in modern electrical installations.

Material Composition and Properties
Degatech’s epoxy resin bushings utilize a combination of high-performance materials that deliver outstanding electrical and mechanical properties:

1. Unsaturated Polyester Resin – Provides excellent insulation and chemical resistance, making the bushing suitable for harsh environments.

2. Glass Fiber Reinforced Molded Plastic (BMC/SMC) – Offers high mechanical strength, durability, and thermal stability. This reinforcement ensures that the bushing can handle significant mechanical stress without cracking or deforming.

3. Metal Inserts – Brass, aluminum, or iron inserts provide secure and reliable electrical connections while maintaining the structural integrity of the bushing.

4. Environmental Compliance – All materials used are U-certified and eco-friendly, minimizing environmental impact while meeting international safety standards.

The combination of these materials ensures that the bushing can operate efficiently in demanding conditions, including extreme temperatures, high humidity, and polluted environments. Additionally, the customizable nature of the inserts, threads, and colors allows engineers to tailor the bushing to specific project requirements, ensuring optimal performance and seamless integration into existing systems.

Technical Specifications
Degatech’s 12KV/24KV epoxy resin bushings are designed with precise technical specifications to meet the rigorous demands of medium voltage electrical systems:

• Voltage Rating: 12KV or 24KV, suitable for a wide range of medium voltage applications.

• Temperature Range: Operates reliably from -40℃ to +140℃, making it suitable for both cold climates and high-temperature industrial environments.

• Mechanical Strength: Resistant to mechanical stress, vibrations, and thermal expansion, ensuring long-term stability.

• Customizable Features: Thread size, color, and insert material can be adapted to meet unique project requirements, enhancing flexibility and compatibility.

These specifications not only ensure compliance with international standards but also provide engineers with confidence that the bushing will perform reliably under all operational conditions.

Applications in Electrical Systems

1. Transformers
   Epoxy resin bushings are essential for medium-voltage transformers, allowing secure connections between the transformer’s high-voltage windings and external circuits. They prevent electrical leakage, provide mechanical stability, and protect against environmental contaminants. By using Degatech epoxy resin bushings, transformers can operate efficiently while minimizing maintenance needs.

2. Switchgear
   In medium voltage switchgear cabinets, epoxy resin bushings facilitate the safe passage of conductors through grounded enclosures. They maintain insulation integrity, reduce the risk of short circuits, and contribute to the overall safety and reliability of the electrical system. Their compact design allows for easy installation in confined spaces.

3. Current Transformers and Reactors
   Bushings in current transformers and reactors ensure that high-voltage terminals are insulated effectively, protecting both equipment and personnel. They provide a durable and reliable interface, allowing these components to function optimally in high-stress environments.

4. Industrial and Renewable Energy Applications
   Epoxy resin bushings are also used in industrial plants, solar power stations, and wind farms, where medium voltage systems are critical. Their resistance to environmental factors such as moisture, dust, and chemical exposure makes them ideal for outdoor and industrial installations.

Advantages of 12KV/24KV Epoxy Resin Bushings

• Enhanced Safety: High dielectric strength and excellent insulation properties prevent electrical faults and improve overall system safety.

• Long Service Life: Composite materials resist aging, mechanical stress, and environmental degradation, providing reliable performance over many years.

• Maintenance-Free Operation: Unlike traditional porcelain bushings, epoxy resin bushings require minimal maintenance, reducing operational costs.

• Environmentally Friendly: Made from eco-certified materials, these bushings support sustainable electrical engineering practices.

• Customizable: Tailored designs allow engineers to optimize bushings for specific voltage, temperature, and mechanical requirements.

These advantages make Degatech’s epoxy resin bushings a cost-effective and reliable choice for medium voltage electrical systems.

Installation and Maintenance Tips
Proper installation and maintenance are critical for ensuring the long-term performance of epoxy resin bushings:

• Installation: Ensure that the bushing is mounted according to manufacturer specifications. Avoid overtightening the inserts to prevent mechanical stress.

• Inspection: Periodically check for signs of wear, cracks, or discoloration. Temperature monitoring can help detect potential overheating issues.

• Cleaning: Keep the bushing surface free from dust, oil, and other contaminants to maintain optimal insulation performance.

• Maintenance: Minimal maintenance is required, but routine inspections can extend the operational life and reliability of the equipment.

By following these guidelines, engineers can ensure safe and efficient operation of medium voltage equipment while maximizing the lifespan of the bushings.

Conclusion
In today’s medium voltage electrical systems, 12KV/24KV epoxy resin bushings are indispensable components that combine electrical insulation, mechanical stability, and environmental protection. Degatech’s bushings are designed to meet the highest standards of performance, safety, and durability, making them a trusted choice for transformers, switchgear, reactors, and industrial applications.

For engineers and technicians seeking reliable medium voltage solutions, Degatech’s 12KV/24KV epoxy resin bushings offer unmatched quality and adaptability. Discover the full range of Degatech switchgear products at https://chinadegatech.com/switchgear-products/ to find the ideal solution for your electrical systems.