The most common winding connections for a sliding core transformer are the delta, star, and Y-connections. The delta connection is typically used for higher voltage applications, as it provides a low impedance path for the current to flow. The star connection is used for low voltage applications and has fewer negative effects on the output voltage waveform. The Y connection is a combination of delta and star connections and is used when a stable output voltage is desired. These three connections are the most common used in sliding core transformers, although other more complex connections are possible.

The delta connection is created by connecting each coil of the transformer in series, allowing the current to flow in the same direction on all coils. This connection has the benefit of providing a low impedance path for the current to flow, resulting in greater output voltage efficiency. However, it can also create some harmonic distortion, so it is not ideal for all applications.

The star connection connects the coils of the transformer in a radial pattern, with the current flowing in the opposite direction on each coil. This connection helps to reduce harmonic distortion, making it suitable for lower voltage applications. However, it is not as efficient at maintaining the output voltage as the delta connection, so it is not ideal for higher voltage applications.

The Y connection is a combination of the delta and star connections. By combining both connections, the transformer is able to maintain a stable output voltage, while still benefiting from the efficiency of the delta connection. This connection is ideal for applications that require a stable output voltage, such as utility and industrial applications.

In addition, other more complex connections are possible when using a sliding core transformer, depending on the application and desired output. These connections can be used to adjust the output voltage, reduce harmonic distortion, and boost the efficiency of the transformer. However, these connections are typically more complex than the basic connections previously mentioned, and should only be used in applications where the benefits outweigh the risks.

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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