Single Line Diagram. The single line diagram of a power system is the network which shows the main connections and arrangement of the system components along with their data such as output rating voltage resistance and reactance etc. When analysis is done using symmetrical components different diagrams may be drawn that will represent the electric circuitry for positive.
A bfd generally consists of the following. It is not to scale and will contain only very limited engineering and process information. A set of commonly used single line diagram symbols appears on the next two pages.
Single line diagram is a simplified notation for representing a three phase power system.
When analysis is done using symmetrical components different diagrams may be drawn that will represent the electric circuitry for positive. The single line diagram is also called the blueprint of electrical system analysis. It will have one single line shown for bus or cable to represent all three phases. Single line diagrams be it for a project or overall power system show the electrical power distribution and utilization for a particular project local plant area.