In electrical power transformers, the arrangement of placing the low-voltage windings inside the high-voltage windings is a deliberate design choice with several reasons behind it. This configuration offers various advantages in terms of insulation, maintenance convenience, compact mechanical structure, magnetic linkage continuity, and effective heat dissipation.

The primary reason for placing the low-voltage windings within the high-voltage windings is to leverage the insulation system of the high-voltage winding for added protection. High-voltage windings are designed to withstand higher electrical stresses and utilize robust insulation materials and systems. By positioning the low-voltage windings inside, the complexity of insulation structures and spaces can be reduced, facilitating easier maintenance and repair procedures.

Additionally, this arrangement contributes to achieving a more compact transformer structure. Placing the low-voltage windings inside the high-voltage windings saves space, reduces the overall size and weight of the transformer, and increases energy density. This compactness enhances the ease of installation and transportation of transformers.

Another benefit is the preservation of magnetic linkage continuity. With the low-voltage windings inside the high-voltage windings, the magnetic field generated by the high-voltage windings can better penetrate the low-voltage windings, resulting in improved magnetic flux transmission efficiency and performance.

Moreover, this configuration facilitates efficient heat dissipation. The high-voltage windings, being positioned externally, can be more effectively cooled through dedicated cooling systems. By placing the low-voltage windings inside, they can benefit from the cooling effect of the high-voltage windings, leading to better temperature control and heat management.

In summary, the decision to place the low-voltage windings inside the high-voltage windings offers advantages such as enhanced insulation protection, a compact structure, continuous magnetic linkage, and improved heat dissipation. Simultaneously, it simplifies the design and maintenance processes of transformers.

LuShan, est. 1975,  is a Chinese professional manufacturer specializing in power transformers and reactors for 48 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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