What is a box transformer? What are its advantages?

What is a box transformer

Box-type substation is also called box-type substation, box-type substation or box-type substation, referred to as “box-type transformer”. A transformer with electrical isolation between the input winding and the output winding. The isolation transformer is used to avoid accidentally touching the live body at the same time. The isolation transformer is used to isolate the current of the primary secondary winding coil. In order to input different voltages, the input windings can also be multiple to adapt to different input voltages. Multiple windings can also be used to output different voltages. The control transformer is used to change the setting of AC voltage and is made of iron core and coil wire. It can not only change the voltage of the alternating current, but also change the impedance, and change the current when it does not exceed the design power. The box-type transformer is a complete set of power distribution equipment, which is composed of a transformer, high voltage control equipment and low voltage control equipment. The basic principle is through the pressure starting system, armored circuit, substation automation system, DC point and the corresponding technical equipment, in accordance with the prescribed sequence of reasonable assembly of components, each component installed on the special waterproof layer, dust and rodent-proof fully sealed steel box structure to form a special transformer.

Advantages of box transformer

Box-type transformers are widely used in various fields because of their advantages such as less investment, small size, short construction period, easy maintenance, high reliability, diverse shapes, good coordination with the surrounding environment, light weight, low noise, low loss and easy operation. It has become an indispensable power equipment in the construction of electric power projects. The advantages are as follows:

1. Small area

Because the internal control structure design and layout of the box-type transformer are more perfect and reasonable, the impact of occupying space is small. Compared with the traditional transformer, the box-type transformer scientifically, effectively and reasonably installs the high-voltage distribution device in the sealed steel structure box. Its internal management structure is very compact and the gaps between components are very small. Therefore, the space environment occupied by the box is relatively small.

2, simple operation

The operation method of the box-type transformer is very simple and convenient, and it is easy to assemble quickly.

3. Highly automated

The humidity and temperature in the cabinet can be controlled, and the remote smoke alarm can meet the requirements of unattended, and remote image monitoring can be realized according to the needs.

4. Save money and get quick results

The application research of box-type transformer has relatively high economic and social benefits. From the point of view of the cost of manufacturing enterprises, we teachers can see more clearly that the cost management of the manufacturing technology of box-type transformers is often between 300,000 and 500,000. From the perspective of operating costs, it can be clearly seen that even in the full load operation state, the annual power consumption of the box-type transformer is about 1 million KWH less than that of the ordinary transformer, and even the maintenance service cost of some problems may be less. Therefore, box transformers have a higher application as well as benefits.