How much do you know about substations, switching stations, transformer substations, distribution rooms, and prefabricated transformer substations? Let's look at the definitions first:
substation
A substation is a location in a power system that transforms voltage and current, receives electrical energy, and distributes it. Substations within power plants are step-up substations, whose function is to step up the voltage of the electrical energy generated by generators before feeding it into the high-voltage power grid.
A substation is an assembly of equipment used to disconnect or connect, change or adjust voltage. In a power system, a substation is the junction point for power transmission and distribution. Substations are mainly divided into: step-up substations, main grid substations, secondary substations, and distribution substations.
Switching Station
A switching station is a power supply and distribution facility used to receive and distribute electricity; in high-voltage power grids, it is called a switching station. In medium-voltage power grids, switching stations are generally used for receiving and distributing 10kV power.
With the comprehensive transformation and development of power transmission, distribution, and transformation networks, the number of switching stations has increased significantly across various regions. Located one level below substations in the power system, switching stations are power facilities that distribute high-voltage electricity to surrounding power-consuming units. They are not only the most basic unit at the bottom of the distribution network but also a crucial link in the transmission of electricity from high voltage to low voltage.
substation
A substation, as the name suggests, is a place where voltage is changed. It is the location in a power system where the voltage and current of electrical energy are transformed, concentrated, and distributed. To ensure power quality and equipment safety, substations also require voltage regulation, power flow (the direction and distribution of voltage, current, and power in various nodes and branches of the power system) control, and protection of transmission and distribution lines and major electrical equipment. According to their purpose, they can be divided into power substations and traction substations (used in electric railways and trams).
A substation is a line connection point in a power grid, a facility used to transform voltage, exchange power, and collect and distribute electrical energy. It mainly consists of a main transformer, distribution equipment, and measurement and control systems, and is an important component of the power grid and a crucial link in power transmission, playing a vital role in ensuring the safe and economical operation of the grid. The circuits in a substation used to transmit and distribute electrical energy are called primary circuits or main electrical wiring.
power distribution room
A power distribution room generally refers to a power distribution station.
A substation is a facility that receives, distributes, controls, and protects electrical energy, but does not transform the electrical energy.
A power distribution room is an indoor electrical distribution facility with low-voltage loads, primarily supplying power to low-voltage users. It is equipped with medium-voltage incoming lines (and may have a few outgoing lines), distribution transformers, and low-voltage distribution equipment. Facilities for equipment with voltage levels of 10kV and below are divided into high-voltage power distribution rooms and low-voltage power distribution rooms. High-voltage power distribution rooms generally refer to 6kV-10kV high-voltage switch rooms; low-voltage power distribution rooms generally refer to 400V power distribution rooms with outgoing lines from 20kV or 35kV station service transformers. This entry describes the composition, design specifications, and safety regulations of power distribution rooms.
Transformer box
A prefabricated substation, also known as a prefabricated transformer substation, is a factory-prefabricated, compact indoor/outdoor power distribution unit that integrates high-voltage switchgear, distribution transformers, and low-voltage power distribution equipment according to a specific wiring scheme. It organically combines transformer voltage reduction and low-voltage power distribution functions, all housed in a moisture-proof, rust-proof, dust-proof, rodent-proof, fire-proof, theft-proof, heat-insulated, fully enclosed, and movable steel structure box. It is particularly suitable for urban power grid construction and renovation, and represents a new type of substation that has emerged after traditional civil engineering substations. Prefabricated substations are suitable for mines, factories, oil and gas fields, and wind power stations, replacing traditional civil engineering substations and becoming a new type of complete power distribution system.
Box-type transformers (commonly referred to as "box-type transformers") integrate the traditional transformer design into a box-type enclosure, featuring small size, light weight, low noise, low loss, and high reliability. They are widely used in residential communities, commercial centers, light stations, airports, factories, mines, enterprises, hospitals, schools, and other places.
