What is a transformer:

The role of the transformer is generally there are two kinds, one is the elevating voltage effect, and the other is the impedance matching effect. First of all, we usually use a variety of voltage, such as life lighting is 220V, industrial safety lighting is 36V, the voltage of the welding machine also needs to be adjusted, these are separated from the transformer, the transformer through the principle of electromagnetic mutual induction of the main and secondary coils, can reduce the voltage to the voltage we need.

In the process of long-distance voltage transmission, we need to raise the voltage to a very high level to reduce the loss of voltage, usually rising to several thousand volts or even tens of thousands of volts, which is the role of the transformer.

Impedance matching:

It is common in electronic circuits, in the connection of output and input, in order to signal unobstructed, usually the transformer is used for impedance matching, such as old-fashioned broadcasting, because it is the use of constant voltage output, the speaker has a high resistance horn, so it can only be matched with the output transformer. Therefore, daily life is inseparable from transformers, industrial production is also inseparable from transformers.

Overview of box-type substation:

Box-type substation is composed of high-voltage distribution cabinet, power transformer, low-voltage distribution cabinet and other parts, installed in a metal box, the three parts of the equipment occupy a space, isolated from each other. Box-type substation is a relatively new type of equipment.

Advantages of box-type substation:

(1) Small footprint, suitable for installation in general urban load intensive areas, rural areas, residential areas, etc., which is conducive to high-voltage extension, reduce the power supply radius of low-voltage lines, and reduce line loss.

(2) Reduce the cost of civil construction foundation, can be factory production, shorten the site construction period, less investment, and obvious results.

(3) Small size, light weight, easy to install and move.

(4) Can be used fully sealed transformer, sf6 ring network cabinet and other new equipment, with long period, no dimension protection, more complete features, can be used for terminal, but also for ring network.

(5) Environmental protection, novel and beautiful appearance, widely used in construction of temporary electricity, industrial parks, residential areas, commercial centers and other electricity needs, more coordinated with the environment.