Electrical Symbol and Line Diagram

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Presentation transcript:

Electrical Symbol and Line Diagram Mechanical and Electrical Systems SKAA 2032 Electrical Symbol and Line Diagram Dr. Asrul Izam Azmi Faculty of Electrical Engineering Universiti Teknologi Malaysia

Single Line Diagram Single line diagram – a diagram that uses single lines and graphic symbols to indicate the path and components of an electrical circuit. Single line diagrams are used when information about a circuit is required but detail of the actual wire connections and operation of the circuit are not.

Single Line Diagram A line (ladder) diagram is a diagram that shows the logic of an electrical circuit or system using standard symbols. A line diagram is used to show the relationship between circuits and their components but not the actual location of the components. Line diagrams provide a fast, easy understanding of the connections and use of components.

Component Elements of Electrical Cables

Single Line Diagram A power system containing two synchronous machines, two loads, two busses, two transformers, and a transmission line to connect busses together. The diagram also indicates the type of connection for each machine and transformer, and also the points in the system connected to the ground. All devices are protected by oil circuit breakers.