What is a Substation? What are the Types of Substation?

Apr 24, 2022 | Substation | 0 comments


There is an increase in demand for electricity everywhere, whether it’s the city or the village. This demand can be only fulfilled if there are an ample number of power generating substations. Our country consists of many substations such as nuclear, thermal and hydropower. In accordance with the availability of resources, substations are constructed at different locations.

The load centre is the actual power consumption area, nevertheless, this substation’s location cannot be closer to the load centre. This task requires a high and long transmission network as transmitting power from the substation to the load centre is very important

What is a Substation?


The Substation is the most advanced and reliable substation on the market. It features a high-quality digital interface that helps you to monitor and control your electrical system and avoid power overloads. Its intuitive touchscreen supports user-friendly diagnostics and programming.

A substation is a high-voltage electrical system that can be used to regulate apparatus, generators, and electrical circuits, among other things. The main function of substations is to convert AC (alternating current) to DC (direct current) (direct current). Some substations are small in size, with an integrated transformer and associated switches. Other substations are massive, containing a variety of transformers, equipment, circuit breakers, and switches.

Types of Substation

Substations come in a variety of shapes and sizes, depending on their purpose and power handling capabilities. However, the classification of Substations broadly falls under four main types of substations.

  • Step-up Substation
  • Step-down Substation
  • Switching Substation 
  • Outdoor Substation
  • Indoor Substation
  • Underground Substation
  • Mobile Substation
  • Industrial Substation
  • Switchyard

Step-up Substation

Step-up Substation is designed with advanced technology, which can effectively transmit a high-voltage power supply to the transmission line in the substation. With the use of a transmission bus, it can reduce the loss of power as well as reduce the distance between the substation and the transmission line.

Circuit breakers may be installed in the step-up substation for transmission and generation circuits in the event that they need to be turned off. The required voltages that exit the step-up transmission must be examined in light of the customer’s requirements.

Step-down Substation

The step-down substations are the main components of the overhead transmission system which is used in areas where the voltage levels vary from 69kV to 34kV. These substations are linked with load centres as there is a requirement for different voltage levels for various loads. Installing Step-Down Substations is one of the major projects undertaken by PG India in the summer of 2018.

Switching Substation

As they are situated between transmission lines, one of the main functions of these switching stations is to switch the power lines without modifying the voltages. It also isolates the failed systems and de-energizes faulted equipment, allowing the grid to run more reliably.

Outdoor Substation

If you are seeking a professional and effective solution for your electrical and mechanical needs then the Outdoor Substation is sure to be the ideal choice for you. It is designed to meet all electrical and mechanical needs of businesses, industrial plants, commercial buildings, and homes.

The outdoor substations are constructed in the open air to provide easy access for maintenance, repairs, and replacements. These substations provide a variety of power-line communication components like transformers and towers.

Indoor Substation

The indoor substation is an alternative solution to the outdoor substation. The indoor substation is mostly used in places where high-voltage residential distribution lines are not allowed. This can be done by targeting lower voltage lines to a particular area or by using a building for the installation of indoor substations.

Indoor substations are designed to provide electrical power supplies to a restricted area such as a building. The feeder input is at the ground level and the output is at a height of approximately 100 feet. The primary function of an indoor substation is to provide power in the form of in-phase and out-of-phase AC voltages.

Underground Substation

Underground substations are an alternative to surface substations, and they are often the most cost-effective and time-efficient solution. Subterranean substations are typically utilised as a backup system for your home or company. The best thing about underground substations is that they don’t take up any surface area because they’re installed underground. It’s a waterproof, airtight, soundproof, and temperature-controlled device that’s perfect for cramped quarters.

The key to building a city’s power substation is the underground substation. It can help to compensate for the area lost during construction while also lowering the cost of constructing a substation.

Mobile Substation

A mobile substation is a self-contained, movable electrical supply station used for a specific purpose. Power outlets for any type of event, such as concerts, athletic events, festivals, or trade exhibitions, are provided by these substations. They’re simple to put up and provide several hours of power per day.

The Mobile Substation is also designed to provide a temporary power source for small-scale industrial applications, emergency backup, or off-grid applications. It has strong protection against blackouts, fires, weather disruptions, and sabotage, among other things.

Industrial Substation

The Industrial Substation is a powerful and cost-effective solution for those who require an industrial power supply. This industrial power supply comes with a machine-like appearance and supports a wide range of applications including manufacturing, agriculture, construction, mining, and more. This bulk power distribution system comes with all the necessary accessories to ensure that you have everything you need to start enjoying this cost-effective solution.

Industrial substations are a safe and reliable way to provide bulk power to industrial customers. They are typically located near the major industrial plants in a town ensuring easy access to the energy needs of that plant. These substations are built to high electrical safety standards and are covered by manufacturer’s warranties.

Switchyard Substation

Switchyard substation is the mediator in transmission as well as generation. It is a switch box providing an identical voltage to the nearest transmission line. Switchyard substation is used in power plants which are used for generating electricity and supplying it through transmission lines.

Switchyard is a product that was developed to solve the problem of supplying electricity to larger areas as well as the requirement of a reliable and economic distribution system. The switchyard is a powerful addition to your substation and once your transmission line is hooked up, it will provide you with a stable energy supply.

Revolution of Substation Manufacturers in India

The Indian power system is largely made up of coal-fired thermal power plants, hydroelectric dams, and nuclear energy facilities. The country’s energy mix has changed significantly over the past few decades as it shifted from primarily coal-based to a mix of coal, hydro, and nuclear energy.

India is currently undergoing an unprecedented transformation in its electricity sector. The government has been striving to increase the share of renewable sources such as solar and wind in the country’s overall energy mix. It also plans to expand its transmission network with the help of solar PV projects and smart grids that will allow for better integration between renewable sources and traditional sources like coal-fired plants. The impact of transformation in the electricity sector in the country makes a big boom in Substation manufacturers in India. 

Substations are expected to be in high demand in India as electricity transmission and distribution infrastructure expands across the country. According to research Substation manufacturers in India has increased by 5% to 8% in the year 2020-2021. The Indian Substation market would develop at a CAGR of 7.8% from 2017 to 23 according to studies by experts. 

With the increasing demand for electricity and the challenges associated with power supply, substation manufacturers are seeing a rise in their demand in India and especially in Chennai. The continuous supply is important for businesses and industries as sub-station manufacturer in Chennai helps them maintain their operations without any interruptions. 

With a sub-station manufacturer in Chennai, you get access to a range of products and services for your project or business. These manufacturers offer customized solutions that meet your specific requirements and are cost-effective as well. 

The Substation manufacturers in Chennai are seeing an increase in demand for their products due to the growth of renewable energy projects across the country. They are also able to produce high-quality products that are cost-effective and have features like high power density, low noise levels, and optimal cooling performance.

Why choose EVR Power as your Substation Manufacturer?

EVR Power is a brand that comes to mind of customers when they require robust and perfect substation manufacturers in Chennai that provides high-quality components and material for such users that takes their ability, tools and processes into consideration.

EVR is an expert and experienced in establishing electrical substations for more than two decades and has been proved to be loyal to their customers by providing the best service and 24/7 customer support. Every power-related challenge has been solved by EVR power which is the best substation manufacturer in Chennai.

Are you willing to get a quote? Get in touch with us now! We would be totally reliable to make you understand about electric substation in your area.


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