What's the difference between a box transformer and a ring network cabinet?

The main differences are in nature, principle, characteristics and applications, as follows:

First, the nature is different.

1, box transformer

Box transformer, usually called "box transformer", is the centralized design of traditional transformer in box shell.

2. Ring network cabinet

Ring network cabinet is a group of electrical equipment with transmission and distribution equipment (high-voltage switchgear), which is installed in a metal or nonmetal insulated cabinet or made into an assembled interval ring network power supply unit.

Second, the principle is different.

1, box transformer

As a complete set of power distribution equipment, box transformer consists of transformer, high voltage control equipment and low voltage control equipment. Its basic principle is to assemble the pressure starting system, armored wire, automatic substation system, DC point and corresponding technical equipment in a specified order, and install all the components in a completely sealed toughened box structure such as waterproof, dustproof and rat-proof, thus forming a specific transformer.

2. Ring network cabinet

Ring network refers to the ring distribution network, that is, the power supply trunk line forms a closed ring, and the power supply supplies power to this ring trunk line, and then the power of the trunk line is distributed to the outside through high-voltage switches. The advantage of this is that each distribution branch can get power from its left and right trunk lines. When the left trunk line fails, it will continue to get power from the right trunk line, and when the right trunk line fails, it will continue to get power from the left trunk line. In this way, although the total power supply is unidirectional, it will get benefits similar to bidirectional power supply from each distribution branch, thus improving the reliability of power supply.

Third, the characteristics are different.

1, box transformer

Small size, light weight, low noise, low loss and high reliability.

2. Ring network cabinet

It has the characteristics of simple structure, small volume, low price, improved power supply parameters and performance, and safe power supply.

Fourth, the application is different.

1, box transformer

Used in residential quarters, commercial centers, lighthouses, airports, factories and mines, enterprises, hospitals, schools and other places.

2. Ring network cabinet

Widely used in urban residential quarters, high-rise buildings, large public buildings, factories and enterprises and other load center distribution stations and box-type substations.

Refer to the above? Baidu encyclopedia-box transformer, Baidu encyclopedia-ring network cabinet