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Three-Phase Three-Leg Core: It consists of three core legs and two yokes. This structure is simple and easy to manufacture, with windings wound around the core legs. It is suitable for various capacity transformers and is widely used in three-phase oil-filled power transformers.
Three-Phase Five-Leg Core:
Based on the three-phase three-leg core, two additional side yokes are added. It provides a better path for zero-sequence magnetic flux, effectively reducing zero-sequence impedance and improving the transformer's operational performance. It is often used in power systems with special requirements for zero-sequence current.
Single-Phase Two-Leg Core: Composed of two core legs and two yokes, it is suitable for single-phase oil-filled power transformers, meeting the needs of single-phase power transmission and conversion. It is commonly used in some special single-phase electrical equipment or small-capacity power systems.
High Magnetic Induction Grain-Oriented Silicon Steel Sheet Core: Made of high magnetic induction grain-oriented silicon steel sheets, it has high magnetic permeability and low iron loss characteristics. This enables the transformer to transfer and convert electrical energy more efficiently during operation, reducing energy consumption. It is widely used in oil-filled power transformers of various voltage levels.
Amorphous Alloy Core: Manufactured from amorphous alloy materials, it possesses excellent soft magnetic properties, such as lower iron loss and higher magnetic permeability. Compared with traditional silicon steel sheet cores, it can significantly reduce the no-load loss of the transformer and improve energy efficiency, being especially suitable for occasions with high energy-saving requirements.
Nanocrystalline Core: Combining the advantages of amorphous alloys and traditional crystalline materials, it has higher saturation magnetic induction intensity, lower loss, and better temperature stability. It is a new type of high-performance core material with certain application prospects in high-end oil-filled power transformers.
Fully Inclined Joint Stacked Core: The silicon steel sheets are stacked in a fully inclined joint manner. This process can make the magnetic circuit of the core smoother, reduce magnetic resistance, and lower no-load loss and noise, improving the transformer's electromagnetic performance. It is one of the commonly used processes in the manufacturing of oil-filled power transformer cores.
Stereoscopic Wound Core: The three core legs are arranged in an equilateral triangle in a three-dimensional manner. There is no air gap in the magnetic circuit, and the winding is tight. The magnetic circuit length is consistent and the shortest, and the cross-sectional area of the core legs is closer to a circle. This can further reduce losses, decrease noise, balance the three phases, and effectively reduce the third harmonic component.
Laser-Cut Core: The laser cutting technology is used to process silicon steel sheets, which has the advantages of high cutting accuracy, good edge quality, and high material utilization rate. It can make the core's dimensional accuracy and performance more stable, being suitable for manufacturing high-precision and high-performance oil-filled power transformer cores.
Low Loss Core: Through the optimization of core materials, structures, and manufacturing processes, the hysteresis loss and eddy current loss of the core under alternating magnetic fields are significantly reduced. This can improve the energy conversion efficiency of the transformer and reduce operating costs, being widely used in power systems with high energy-saving requirements.
Low Noise Core: Special processes and materials are adopted, such as adding buffer materials between silicon steel sheets and optimizing the core clamping method, to reduce the vibration and noise generated by the core during operation due to magnetostriction and other reasons. It is suitable for places with high requirements for environmental noise, such as residential and commercial areas.
High Overload Capacity Core: When designing and manufacturing, the magnetic and mechanical properties of the core under high overload conditions are taken into account. It can withstand large overload currents without serious magnetic saturation and mechanical deformation, improving the reliability and stability of the transformer. It is applicable to power systems with large load fluctuations or possible short-term overloads.
Three-Phase Three-Leg Core: It consists of three core legs and two yokes. This structure is simple and easy to manufacture, with windings wound around the core legs. It is suitable for various capacity transformers and is widely used in three-phase oil-filled power transformers.
Three-Phase Five-Leg Core:
Based on the three-phase three-leg core, two additional side yokes are added. It provides a better path for zero-sequence magnetic flux, effectively reducing zero-sequence impedance and improving the transformer's operational performance. It is often used in power systems with special requirements for zero-sequence current.
Single-Phase Two-Leg Core: Composed of two core legs and two yokes, it is suitable for single-phase oil-filled power transformers, meeting the needs of single-phase power transmission and conversion. It is commonly used in some special single-phase electrical equipment or small-capacity power systems.
High Magnetic Induction Grain-Oriented Silicon Steel Sheet Core: Made of high magnetic induction grain-oriented silicon steel sheets, it has high magnetic permeability and low iron loss characteristics. This enables the transformer to transfer and convert electrical energy more efficiently during operation, reducing energy consumption. It is widely used in oil-filled power transformers of various voltage levels.
Amorphous Alloy Core: Manufactured from amorphous alloy materials, it possesses excellent soft magnetic properties, such as lower iron loss and higher magnetic permeability. Compared with traditional silicon steel sheet cores, it can significantly reduce the no-load loss of the transformer and improve energy efficiency, being especially suitable for occasions with high energy-saving requirements.
Nanocrystalline Core: Combining the advantages of amorphous alloys and traditional crystalline materials, it has higher saturation magnetic induction intensity, lower loss, and better temperature stability. It is a new type of high-performance core material with certain application prospects in high-end oil-filled power transformers.
Fully Inclined Joint Stacked Core: The silicon steel sheets are stacked in a fully inclined joint manner. This process can make the magnetic circuit of the core smoother, reduce magnetic resistance, and lower no-load loss and noise, improving the transformer's electromagnetic performance. It is one of the commonly used processes in the manufacturing of oil-filled power transformer cores.
Stereoscopic Wound Core: The three core legs are arranged in an equilateral triangle in a three-dimensional manner. There is no air gap in the magnetic circuit, and the winding is tight. The magnetic circuit length is consistent and the shortest, and the cross-sectional area of the core legs is closer to a circle. This can further reduce losses, decrease noise, balance the three phases, and effectively reduce the third harmonic component.
Laser-Cut Core: The laser cutting technology is used to process silicon steel sheets, which has the advantages of high cutting accuracy, good edge quality, and high material utilization rate. It can make the core's dimensional accuracy and performance more stable, being suitable for manufacturing high-precision and high-performance oil-filled power transformer cores.
Low Loss Core: Through the optimization of core materials, structures, and manufacturing processes, the hysteresis loss and eddy current loss of the core under alternating magnetic fields are significantly reduced. This can improve the energy conversion efficiency of the transformer and reduce operating costs, being widely used in power systems with high energy-saving requirements.
Low Noise Core: Special processes and materials are adopted, such as adding buffer materials between silicon steel sheets and optimizing the core clamping method, to reduce the vibration and noise generated by the core during operation due to magnetostriction and other reasons. It is suitable for places with high requirements for environmental noise, such as residential and commercial areas.
High Overload Capacity Core: When designing and manufacturing, the magnetic and mechanical properties of the core under high overload conditions are taken into account. It can withstand large overload currents without serious magnetic saturation and mechanical deformation, improving the reliability and stability of the transformer. It is applicable to power systems with large load fluctuations or possible short-term overloads.
