What are substations and why do we need them?

Substations convert the power system voltage from transmission levels to distribution levels so that it can be safely and efficiently delivered down our streets.

What is the role of a substation in providing electricity to your home?

Our substations are the point at which power grid infrastructure becomes distribution. Distribution substations step down the voltage coming in from the transmission lines in order to begin the process of sending power to your home. A lot of work goes into planning new substations or even substation upgrades.

What are the roles of sub station for the grid?

As a junction point in the grid, a substation often serves as the termination of many individual power lines. This creates redundancy, making sure that the substation stays energized even if one transmission lines goes down.

What happens in a substation?

Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. A substation may include transformers to change voltage levels between high transmission voltages and lower distribution voltages, or at the interconnection of two different transmission voltages.

How much power is in a substation?

A typical substation at a power plant Typical voltages for long distance transmission are in the range of 155,000 to 765,000 volts in order to reduce line losses. A typical maximum transmission distance is about 300 miles (483 km). High-voltage transmission lines are quite obvious when you see them.

What is the role of substations?

The purpose of a substation is to ‘step down’ high voltage electricity from the transmission system to lower voltage electricity so it can be easily supplied to homes and businesses in the area through lower voltage distribution lines.

How does a substation system work?

What is the role of electrical substation in power system?

The role of electrical substation is most important in terms of converting the voltages to match the transmission and distribution levels. Substations facilitate the regional interconnection of neighboring electrical grids that increases system efficiency and reliability.

What are the advantages of sub-station?

Substations facilitate the regional interconnection of neighboring electrical grids that increases system efficiency and reliability. Facilitate the connection of different generation station into electrical power grid.

What are the characteristics of the largest transmission substations?

The largest transmission substations can cover a large area (several acres/hectares) with multiple voltage levels, many circuit breakers, and a large amount of protection and control equipment ( voltage and current transformers, relays and SCADA systems).

What are the different types of electrical substation equipment?

Substation generally comprises the following equipment: 1 1. Power Transformers. Power transformers are the most important equipment in an electrical substation. They are different from distribution 2 2. Tap Changing Equipment. 3 3. Circuit Breakers. 4 4. BusBar, Bays and Steel Structures. 5 5. Lightning Arrester.