Substation Single Line Diagram Symbols

An example of a single line diagram showing multiple generating stations substations transmission lines and distribution lines appears here.

Substation single line diagram symbols. A set of commonly used single line diagram symbols appears on the next two pages. In single line representation of substation the electrical components such as power transformers incoming and outgoing lines bus bars switching and protecting equipments are represented by standard symbols and their interconnections between them are shown by lines. This single line diagram can be used to easily design a substation. Single line diagram of 11kv substation substation provides the energy supply for the local area in which the line is located.

Transformers generators circuit breakers fuse air break switches reactors capacitors instrument transformers and other. Below are some symbols of the single line diagram. Electrical one line diagram symbols one line diagrams are an important means of communicating the components relationships and connections within a circuit or electrical system. The one line diagram symbols presented here are commonly accepted symbols.

Single line diagrams sld a single line diagram shows the disposition of equipment in a substation or network in a simplified manner using internationally accepted symbols to represent various items of equipment such as transformers circuit breakers and disconnectors generally with a single line being used to represent three phase connections. The single line diagram is also called the blueprint of electrical system analysis. The main function of the substation is to collect the energy transmitted at high voltage from the generating station and then reduce the voltage to an appropriate value for local distribution and gives facilities for switching.