Transformer is an electrical equipment that converts digital AC voltage into another digital AC voltage with the same frequency by using the principle of electromagnetic induction. Henan Bohui Electric Co., Ltd. believes that transformers have been widely used in power system transmission, distribution and electronic technology, testing technology, welding technology and many other fields.
Transformer energy transmission:
In the process of electric transmission (voltage change), the AC power supply generates an AC magnetic field through the first coil, and then converts it into the induced electromotive force of the second coil through the AC magnetic field. In this process, a lot of power is lost. For example, the power supply passes through the primary coil, which is made of copper or other metals. The resistance is very small, but there will be some energy loss. The longer the coil, the greater the resistance and the higher the loss (which cannot be ignored). The project is called copper loss. Iron core is also a conductor. If there is an AC magnetic field, according to the law of electromagnetic induction, it will also produce induced current, which will flow in the conductor, and Joule heat will cause the conductor to heat up and lead to loss, which is called eddy current loss. When the current in the coil is converted into an alternating magnetic field, people who study the magnetic field need to know that different ferromagnetic materials in the magnetic field may react differently to the magnetic field. This reaction, called magnetoresistance, is caused by magnetic stagnation, in which electricity loses some energy when it is converted into magnetic energy. Both eddy current loss and hysteresis loss occur in the iron core, which is called iron loss. Copper loss also occurs when the magnetic field is converted into the current of the auxiliary coil.
Energy is stored in the transmission process. As the name implies, transformers use the principle of electromagnetic induction under the action of variable voltage. The transformer we use every day, that is, the power transformer. The function of power transformer is power transmission, voltage conversion and insulation isolation, which is widely used in the fields of power technology and power electronics technology. Generally speaking, a step-down transformer that reduces 220V AC power frequency to the required voltage.