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Classification and application of low-frequency transformers

Article Source：Kinri Energy | Author：Kinri Energy | Issuing Time：2024.05.07
Low frequency transformers, as an important electrical equipment, are widely used in fields such as communication, electronics, and power. This article will provide a detailed introduction to the classification of low-frequency transformers and explore their applications in different fields.


low-frequency transformer

Classification of low-frequency transformers

Low frequency transformers can be classified into various types based on their structure and working principle, mainly including the following types:

1. Core transformer: Core transformer is the most common type of low-frequency transformer. It uses a ferrite core or iron core as the magnetic circuit and achieves voltage conversion through winding of the coil. Core transformers have the advantages of small size, light weight, high efficiency, and low temperature rise, and are widely used in various electronic devices.

2. Shell type transformer: Shell type transformer is opposite to core type transformer, with its magnetic circuit located outside the coil. Shell type transformers usually use iron or aluminum shells as magnetic circuits, which have strong anti-interference ability and high stability. It has advantages in some special occasions, such as high-frequency and high-power applications.

3. Wire wound transformer: Wire wound transformer is achieved by directly winding the coil onto the iron core. This type of transformer has a simple structure, low cost, and is suitable for situations where volume and weight requirements are not high. However, the magnetic circuit of wound transformers is longer and their efficiency is relatively low.

4. Transformer: A transformer is a special low-frequency transformer used to measure and protect the current and voltage in the power system. Transformers have the characteristics of high precision, high stability, and strong anti-interference ability, and are widely used in measurement, protection, and control of power systems.

The application of low-frequency transformers

Low frequency transformers are widely used in various fields, and the following are the main application areas:

1. Communication system: In communication systems, low-frequency transformers are mainly used for signal transmission on telephone lines and communication equipment. It can convert high voltage and low current signals into low voltage and high current signals to achieve long-distance signal transmission.

2. Electronic devices: In the field of electronic devices, the main function of low-frequency transformers is to provide reliable DC power supply voltage. It is usually used in the power circuit of various household appliances, computers, printers and other equipment. In addition, low-frequency transformers also play a very important role in signal processing and communication systems of electronic devices.

3. Power system: In the power system, low-frequency transformers are commonly used for step-up, step-down, and power transformation in substations and distribution systems. It can turn high voltage into low voltage or low voltage into high voltage to meet the needs of different devices. In addition, transformers also play an important role in the power system for measurement, protection, and control.

4. Industrial manufacturing: In the field of industrial manufacturing, low-frequency transformers are widely used for the control and regulation of various power equipment and machines. For example, in industrial production processes such as chemical and steel industries, low-frequency transformers can be used to change the magnitude of voltage and current to meet the needs of different equipment.

In short, low-frequency transformers, as an important electrical equipment, have a wide range of applications in fields such as communication, electronics, and power. Different types of low-frequency transformers have different characteristics and advantages, and can be selected according to specific application requirements.
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