The Future Of Dry-Type Transformers

With the widespread application of dry-type transformers, their manufacturing technology has also made significant progress. It can be predicted that future dry-type transformers will see further development in the following aspects:

⑴ Energy Saving and Low Noise: With the introduction of new low-loss silicon steel sheets, foil winding structures, stepped core joints, environmental protection requirements, in-depth noise research, and computer-optimized design, new materials, processes, and technologies will make future dry-type transformers more energy-efficient and quieter.

⑵ High Reliability: Improving product quality and reliability will be a relentless pursuit.

⑶ Environmental Protection Certification: Based on the European standard HD464, research and certification will be conducted on the weather resistance (C0, C1, C2), environmental resistance (E0, E1, E2), and fire resistance (F0, F1, F2) characteristics of dry-type transformers.

(4) Large Capacity: The focus is shifting from dry-type transformers, primarily 50-2500kVA distribution transformers, to 10000-20000kVA/35kV power transformers. With the continuous increase in urban electricity load, substations are increasingly penetrating urban centers, residential areas, and large factories and mines, leading to the widespread application of 35kV high-capacity power transformers for community power supply.

(5) Multifunctional Combinations: The development is moving from single transformers to multifunctional combined transformers with features such as air cooling, protective enclosures, temperature computer interfaces, zero-sequence current transformers, power metering, enclosed busbars, and side-outgoing lines. It can be predicted that 21st-century distribution transformers will be characterized by high performance, low noise, and energy efficiency, using resin-insulated dry-type transformers.