Three-phase oil-immersed transformer is a common power equipment that is widely used in industrial, commercial, and residential fields for voltage conversion, power transmission, and distribution. There are many models with their own characteristics to meet the needs of different occasions and applications. The following will introduce the models of three-phase oil-immersed transformers and their related characteristics in detail.

First of all, the model of a three-phase oil-immersed transformer usually consists of multiple parts that reflect key information such as the transformer’s design, performance, capacity, and construction. Generally speaking, the model number may contain parameters such as rated voltage, rated capacity, cooling method, number of phases, insulation grade, winding form, etc. For example, a typical model might be “S11-M-1000kVA/35kV”, where “S11” represents the design serial number of the transformer, “M” represents the hermetically sealed structure, “1000kVA” is the rated capacity, and “35kV” is the rated voltage.

Among the many models of three-phase oil-immersed transformers, there are some common types. For example, S9, S11 and S13 series transformers, which are designed according to relevant national standards, have high efficiency and low energy consumption, and are the more popular models in the market at present. In addition, there are some special-purpose transformers, such as dry-type transformers, explosion-proof transformers, etc., which are optimized for specific applications.

The structure of the three-phase oil-immersed transformer is also an important part of its model. Generally speaking, transformers are composed of components such as iron cores, windings, fuel tanks, insulating materials, etc. The core is usually stacked with high-quality silicon steel sheets to reduce eddy current losses and improve efficiency. The winding is wound with copper or aluminum wire with good conductivity to achieve the rise and fall of voltage and the conversion of current. The oil tank is used to store transformer oil, which plays the role of insulation, heat dissipation and corrosion protection. Insulating materials are used to ensure the safe operation of transformers at high voltages.

In terms of performance, three-phase oil-immersed transformers offer a variety of advantages. First of all, they have high efficiency and low losses, thanks to their advanced design and manufacturing processes. Secondly, they have good thermal stability and overload capacity, and can operate stably for a long time in harsh environments. In addition, some high-end models of transformers also have an automatic protection function, which can automatically cut off the power supply in the event of a fault to prevent the expansion of accidents.

In addition, three-phase oil-immersed transformers are used in a wide range of applications. They can be used for voltage conversion and power transmission in power systems, as well as in power supply systems in factories, mines, hospitals, schools, and other places. Due to its high performance and stability, it has been widely used in important occasions and key fields.

Finally, it should be noted that when choosing a three-phase oil-immersed transformer, it should be comprehensively considered according to the actual needs and use environment. For example, factors such as the capacity of the transformer, voltage level, cooling method, insulation level, etc., need to be considered to ensure that it can meet the requirements of use and operate safely. At the same time, it is also necessary to choose a reputable manufacturer and excellent after-sales service to ensure the quality and reliability of the transformer.

To sum up, there are many models of three-phase oil-immersed transformers, each with its own characteristics. When selecting and using, we should fully understand its performance characteristics and application scope, and make reasonable matching and selection according to actual needs. Through scientific and reasonable selection and use, the advantages of three-phase oil-immersed transformers can be fully utilized, and contribute to the stable operation of the power system and the improvement of power quality.

However, for the specific model recommendation, due to the specific engineering needs, the use environment, the budget and other factors, it is impossible to give a definite answer here. It is recommended to consult a professional power engineer or related manufacturers according to the specific situation in practical application to obtain the most suitable three-phase oil-immersed transformer model.