日本語
ไทย
Gaeilgenah Éireann
اردو
bosanski
فارسی
dansk
Nederlands
slovenčina
slovenščina
Melayu
Transformers are the most recognizable devices in electricity. They are large in size, have obvious features, simple in principle, but require more maintenance. They look much more substantial than "cables". On the power grid diagram, transformers are like backbone nodes, and other devices are like its connections.
Principle of transformers
The conversion principle of transformers is to use electromagnetic induction to change AC voltage.
Composition of transformers
The transformer is mainly composed of iron core and windings. The iron core is the magnetic circuit channel of the transformer, and the winding is the circuit part of the transformer, which is wound with a certain number of turns of enameled wire.
We call it the primary winding, also known as the primary winding, which is connected to the power supply. We call it the secondary winding, also known as the secondary winding, or the secondary winding, which is connected to the load. The basic forms of iron core structure are core type and shell type.
The iron core column of the core-type transformer is surrounded by the winding. Simply put, the winding surrounds the iron core, the structure is relatively simple, and assembly and insulation are relatively easy, so transformers often use the core structure.
The shell structure is that the iron core surrounds the winding. The shell-type transformer has high mechanical strength and exposed tooth angle, but its manufacturing process is complex and uses more materials. It is usually only used in low-voltage and high-current transformers or small-capacity power transformers.
The role of the transformer
The transformer mainly has the functions of changing voltage, changing current and isolating, among which: Changing voltage: increasing or reducing the voltage, and converting the voltage generated by the generator into a voltage level for residential or industrial use through the process of boosting, transmitting and reducing the voltage. Changing current: changing the voltage while changing the current. Isolation: isolating the user system and the power supply system to reduce the scope of the accident. Here we review the common
