Define Single Line Diagram Of Power System
In power engineering a single line diagram sld also sometimes called one line diagram is a simplified notation for representing a three phase power system.
Define single line diagram of power system. What is a single line diagram. Figure 4 single line diagram of electric power system supplying motor loads. The information to be induced in the single line diagram is dependent on the purpose for which the diagram is drawn. Establish base voltage through the system by observation of the magnitude of the components in the system a base value of apparent power s is chosen.
Single line diagram is the representation of a power system using the simple symbol for each component. Electrical system on photo 110kv substation. Single line diagram of power system definition. Three phases are denoted by a single conductor i e power system is assumed in a balanced steady state.
The various features of the system are different based on the problem that is considered. A single line diagram is method of simplified representation of a three phase power system. Single line diagram of power supply system the electrical energy is produced at generating stations and through the transmission network it is transmitted to the consumers. Between the generating stations and the distribution stations three different levels of voltage transmission sub transmission and distribution level of voltage are used.
In order to analyze a power system under load conditions or upon the occurrence of a fault it is essential to draw the per phase. Calculation procedure in 8 steps 1. 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. Primary transmission and secondary transmission and similarly primary distribution and secondary distribution and then finally the system of supply to individual consumers.
Single line diagram of the a c. Impedance and reactance diagrams. The significant information about the power system can be obtained in concise from the single line diagram.