Transformer Substation: Also known as a prefabricated substation or prefabricated transformer substation. It is a high-voltage switchgear, power transformer, and low-voltage distribution device, combining basic functions such as outdoor compact substation equipment, transformer voltage reduction, and low-voltage distribution according to a certain wiring plan. Assembled in a waterproof, anti-rust, anti-pollution, fire-resistant, theft-proof system, thermal insulation, fully enclosed, and mobile steel frame structure box, it is particularly suitable for the construction and renovation of urban internet infrastructure. It has emerged as a new type of substation after the construction of civil engineering power distribution stations. The transformer substation is applicable to mining, factories, oil fields, wind power stations, and can replace the original civil engineering high and low-voltage distribution rooms and substations, becoming a new type of complete set of power distribution equipment.

Structural Features of Power Transformers: The overall structure of power transformers is crucially divided into three main parts: high-voltage switchgear, transformers, and low-voltage distribution equipment. Depending on system requirements, high-voltage switchgear maySF₆High-voltage circuit breakers, ring main power switches, high-voltage load switches, and fuses. Accurate measuring devices can also be assembled on the high-voltage side. The low-voltage side typically includes a main power switch and coaxial cable power switch for extracting power, with some configurations featuring only a coaxial cable power switch. Immediate distribution of low-voltage terminal products to users is ensured. Compensation capacitors can also be assembled.PreciseMeasurement devices, etc. Power transformers are generally selected in oil-immersed or oil-filled types. There are two construction methods for the cabinet, namely the "eye" shape layout and the "dot" shape layout. The high-voltage and low-voltage rooms in the "eye" shape layout are wider, which is conducive to completing a loop supply scheme with ring network or dual power supply switch connections.

General box-type substations are divided into three categories.

High-voltage switchgear model

2. Oil-Immersed Transformer Cabinet Model and Specifications

3. Low-voltage switchgear models.

The meaning of the first three alphabetic symbols is:

Z- Combination; B- Substation; N(W)- Indoor (Outdoor, no addition); X- Box; Y- Mobile.

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