What are the commonly used small transformers?Where is it used?
Time：2024-11-8 Auther：ZTelec-www.ztelectransformer.com
What are small transformers?
Small transformers mainly refer to single-phase transformers below 20kVA and three-phase transformers below 50kVA, which is characterized by small size, low cost, less line. It is usually composed of an iron core and a winding (coil). The iron core is stacked with silicon steel sheets to reduce loss, and the winding is mostly composed of mutual inductance double coil structure.
There are many types of small transformers, which include:
Power transformer: It is used to convert alternating current from one voltage to another voltage and commonly used in household appliances, electronic equipment .
Isolation transformer: It is used for electrical isolation to prevent interference between circuits and often used in industrial control, medical equipment .
Ring transformer: It has high power density and good electromagnetic compatibility and is suitable for high frequency circuits and precision instruments .
Applications of small transformers
1.Electric power industry
Low-voltage distribution: Small transformers are usually used to reduce the electric energy transmitted by high-voltage transmission lines to a low voltage level suitable for residential, commercial and industrial electricity to meet the demand for electricity in different places.
Smart grid: With the development of smart grids, small transformers are playing an increasingly important role in distributed energy access, power quality improvement and intelligent monitoring.
Renewable energy access: Small transformers are used to connect renewable energy equipment such as solar photovoltaic systems and wind power generation systems to the power system to achieve the effective use of clean energy.
2.Industry and commerce
Industrial production: Small transformers are widely used in the industrial field, which are used to convert the voltage in the high-voltage transmission line into low-voltage electric energy that meets the requirements of factory equipment to meet the needs of production and life. At the same time, small transformers can also improve the quality of power and reduce the impact of power fluctuations and harmonics as well as ensure the normal operation of industrial equipment.
Commercial electricity: Commercial buildings such as office buildings, shopping malls, etc., have a large demand for electricity, but electrical equipment often has low voltage requirements. Small transformers can reduce the voltage in the high-voltage transmission line to the low-voltage electrical energy required for commercial electrical equipment, providing a stable and reliable power supply for commercial places.
3.Home and office equipment
In family life, small transformers also play an important role. It can adjust the voltage in the high-voltage transmission line to the low-voltage electricity suitable for household electrical equipment, such as household appliances, lighting equipment, etc., to ensure the safe and stable operation of the household power system. In addition, small power transformers are also widely used in a variety of office equipment, such as televisions, computers, printers and so on.
4.Communication and electronic equipment
Communication equipment: Small transformers are used in communication equipment to isolate signals, match impedance, coupling, etc. For example, in telephone equipment, a small transformer can convert a two-wire system to a four-wire system, guaranteeing the quality of the call.
Electronic equipment: Small transformers are used in all kinds of electronic equipment, such as frequency converters, UPS (uninterruptible power supply), etc., to provide stable power output for these devices. At the same time, it can also be used as a signal transformer and often used to amplify, isolate and match signals.
Purchase and precautions
When purchasing a small transformer, the following points need to be noted:
Power and capacity: Choose the right power and capacity according to the actual demand to ensure the normal operation of the transformer and the efficiency of power transmission.
Voltage level: Ensure that the voltage level of the selected transformer matches the voltage level of the power system to avoid equipment damage or reduced power transmission efficiency caused by too high or too low voltage.
Insulation performance: Select a small transformer with good insulation performance to ensure the safe and stable operation of the power system.
Brand and quality: Choose well-known brands and high-quality products to ensure the reliability and service life of the transformer.
