These devices would be located in tall structures and in substations they will be located in the starting point. This device is used for protecting the instruments from lightning strokes. These devices are utilized to isolate a part of the system and they can be utilized during maintenance This is utilized to open or close a circuit, so this device would be really useful during faulty conditions. These transformers are utilized to make the low voltage instrument suitable for the measurement of high voltages. These transformers are used to supply power to the instruments, these instruments are designed to operate in low-value current. These transformers are used for generation and transmission purpose and it is used to step up the voltage. Bus bar can be seen in panel board, switch-gear, etc. The bus bar is used in a plant to reduce the energy loss in transmission and distribution. The generator would act as a power source Symbols used in single line diagram Various components involved in a single line diagram What are the symbols used in single line diagram? SL no All the connections are shown as single lines, the multiple conductors of power circuits, and the control circuits are shown as single lines. This type of diagram is mostly used in an electrical power system. With the help of a single line diagram we can easily determine the circuit interconnections and also we could easily find the physical location of a circuit or component. So basically, this diagram does the symbolic representation of the electrical system which is in a circuit. These diagrams would be useful to get details about the circuit but they won’t be able to show the actual wire connection and operation of the circuit. ![]() The single-line diagram is also called a one-line diagram.
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