What is the difference between a box-type transformer and a traditional transformer?

Box-type transformer is a kind of power equipment integrating traditional transformers and related equipment. It is a completely sealed toughened box structure with transformers, high-voltage voltage control equipment, low-voltage voltage control equipment and so on. A box-type transformer is a closed transformer and usually composed of an iron core, winding and housing. Its shell is made of insulating material or metal material and contains input windings and output windings. It realizes voltage transformation through electromagnetic induction law. Box-type transformers are usually equipped with cooling equipment such as radiators or fans to ensure stable operation in a variety of environments‌.

What is the difference between a box-type transformer and a traditional transformer?

1. Structural differences

Box-type transformers usually integrate all components such as transformers, electrical control devices, protection devices and power distribution equipment in a closed box. It looks like a big box. Its outer shell is generally made of steel plate or aluminum alloy, which has good protection and corrosion resistance. Traditional transformers are usually separate transformer bodies and has power facilities and equipment protection shells outside, but the overall structure is relatively scattered and the installation environment requirements are high.

2. Safety performance and protection function

The box-type transformer adopts a closed box, which can effectively avoid the influence of external factors and reduce the risk of human operation. The box is equipped with a complete monitoring and protection system, including overload protection, overvoltage protection, etc. Traditional transformers rely on external protection devices and are sometimes exposed to the external environment during use. Therefore, their safety performance is relatively weak. Especially when they are used outdoors, they are easily affected by factors such as weather changes and external damage.

3. Application environment

Box-type transformers are usually used outdoors and are suitable for power systems, commercial centers, residential areas, city streets, large construction sites and other places. Due to its compact structure and small footprint, it has significant advantages in these places. Box-type transformers also have the characteristics of fast movement, so they are particularly suitable for special occasions such as temporary power supply and construction site.

Traditional transformers are more widely used in power systems or industrial fields, such as substations, factories and other power facilities that require large capacity. It can meet various power supply needs, but in some places with high requirements on equipment footprint, sealing, and operational reliability, the application of traditional transformers is limited.

4. Installation and maintenance

Box-type transformers can be installed directly outdoors without the need to build a special transformer room, which saves space and investment. Since it is equipped with standard modules for matching equipment, once a fault occurs, it can be repaired by replacing the module, reducing downtime and maintenance costs.

Traditional transformers usually require a special transformer room for installation and storage, which increases space and investment costs. Disassembly and assembly are required for maintenance, which increases the difficulty and time cost of maintenance. Due to its relatively simple structure and lack of necessary protection and control devices, additional auxiliary equipment and personnel may be required in some complex application scenarios to ensure its normal operation.