What is a secondary substation?

The secondary substations are the interconnection between medium and low voltage. SEA produces HV/MV, MV/MV, MV/LV transformers, both liquid immersed and dry type. Here below the type of substations where transformers can be used: Transmission substation.

What is the difference between substation and station?

As nouns the difference between substation and station is that substation is a site where electricity supplied by long-distance (high-voltage) transmission lines is transformed and/or regulated for local (low-voltage) distribution while station is (obsolete) the fact of standing still; motionlessness, stasis.

What is 11kv substation?

11 KV Substation. Pole-Mounted Sub-Station: 1. It is a distribution sub-station placed overhead on a pole. It is the cheapest form of substation as it does not involve any building work.

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.

What is primary grid substation?

Primary Grid Substations – This substation lowered the value of primary stepped up voltages. The output of the primary grid substation acts as the input of the secondary substations. The secondary substation is used for stepping down the input voltage to more lowered for further transmission.

What is a substation and how does it work?

A substation is an electrical system with high-voltage capacity and can be used to control the apparatus, generators, electrical circuits, etc. The Substations are mainly used to convert AC (alternating current) to DC (direct current). Some types of substations are tiny in size with an inbuilt transformer as well as related switches.

How do I plan a substation layout?

The first step in planning a substation layout is the preparation of a one-line diagram which shows in simplified form the switching and protection arrangement required, as well as the incoming supply lines and outgoing feeders or transmission lines. One-line diagram should include principal elements: Lines Switches Circuit breakers Transformers

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).

Why are substations important to long-term consistency?

They are important to long-term consistency. These stations are strategic services as well as very costly to build as well as to maintain. Distribution type substations are placed where the main voltage distributions are stepped-down to supply voltages to the consumers using a distribution network.