What are the structural characteristics of epoxy resin dry-type transformers?

Content

●Winding Materials and Structure

The high and low voltage windings of epoxy resin dry-type transformers are entirely made ofcopper strips (foils). Copper strip windings not only have lower resistance, effectively reducing winding losses, but also enhance the overall efficiency of the transformer due to the high conductivity of copper. The windings are produced using flat winding or layer winding techniques, which help to reduce inductance and losses, thereby improving the stability and reliability of the transformer.

●Insulation Class

The insulation class of epoxy resin dry-type transformers is typically F or H.F-class insulation can withstand temperatures up to155°C, whileH-class insulation can endure even higher temperatures, up to 180°C. This high-grade insulation system ensures the safety and reliability of the transformer during long-term operation. 

●Volume and Weight

Compared to traditional oil-immersed transformers, epoxy resin dry-type transformers are characterized bysmaller size and lighter weight. This makes them more convenient to install and transport, effectively saving installation space, and making them suitable for installation within various buildings.

●Temperature Monitoring and Control

Epoxy resin dry-type transformers are usually equipped with a temperature display controller. This system can monitor the operational temperature of the windings in real-time and perform necessary controls, such as starting or stopping fans, to keep the transformer operating within a safe temperature range. This function helps prevent damage to the insulation material caused by overheating, further enhancing the safety and longevity of the transformer.

In summary

In summary, epoxy resin dry-type transformers are widely used in modern power systems due to their advanced materials and design, excellent insulation performance, effective cooling mechanisms, and convenient maintenance characteristics.

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LuShan, est.1975, is a Chinese professional manufacturer specializing in power transformers and reactors for 49 years. Leading products are single-phase transformer, three-phase transformers, DC inductors, AC reactors, filtering reactor, expoxy resin high-voltage transformer and intermediate, high-frequency products.Our transformers and reactors are widely used in 10 application areas: rapid transit, construction machinery, renewable energy, intelligent manufacturing, medical equipment, coal mine explosion prevention , excitation system, vacuum sintering, central air conditioning.

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