Layout Diagram Of Electrical Substation

While individual utilities may have their own format there is a high degree of standardization of these types of drawings worldwide for contractual and tendering purposes.

Layout diagram of electrical substation. Main components of 11kv substation. Electrical substation now days the electrical power demand is increasing very rapidly. Electric substations with equipment used to convert high voltage extra high voltage ehv or ultra high voltage uhv transmission lines to the intermediate voltage sub transmission lines or to switch sub transmission circuits operating at voltages in the range of 34 5 kv to 161 kv are referred to as. The single line diagram of the 33kv substation is depicted in the figure below.

Depending upon the availability of resources these stations are constructed. Transmission sub transmission and distribution substation 4. The single line diagram of an 11 kv substation is shown in the figure below. Incoming or power feeder connection 33kv incoming line power transformer connection via lighting arrestor busbar.

Single line diagram of an electrical substation. The characteristics of such a substation are as follows. Substation layout diagrams provide scale drawings of the location of each piece of equipment in a substation in both plan and elevation. Voltage transformer connection for control and.

For fulfilling these huge power demands the modern time requires creation of bigger and bigger power generating stations. Circuit breakers may be maintained. The electricity substation is a network of electrical equipment which is connected in a structured way in order to supply electricity to end consumers. 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.

There is numerous electrical substation components like outgoing and incoming circuitry each of which having its circuit breakers isolators transformers and busbar system etc for the smooth functioning of the system. Electrical bus system and electrical substation layout july 25 2018 february 24 2012 by electrical4u there are many different electrical bus system schemes available but selection of a particular scheme depends upon the system voltage position of substation in electrical power system flexibility needed in system and cost to be expensed. The working of the electrical equipment used in the substation is explained below in details. Operation of two circuit breakers is required to connect or disconnect a circuit and disconnection involves opening of a mesh.

Full mesh substation layout. The single line diagram makes the system easy and it provides the facilitates reading of the electrical supply and connection. The substation is the part of an electrical supply system which transmits the high voltage from the generating substations to the local distribution networks. These power generating stations may be hydro electric thermal or atomic.

Between the generation and distribution the voltage may vary through several substations. The general layout for a full mesh substation is shown in the schematic below.