Air Circuit Breaker Symbol Single Line Diagram
Note the coloring used to illustrate circuit breaker states green off and red on which is how single line diagrams.
Air circuit breaker symbol single line diagram. A set of commonly used single line diagram symbols appears on the next two pages. It is a usual practice by many electrical utilities to prepare one line diagrams with principal elements lines switches circuit breakers transformers arranged on the page similarly to the way the apparatus would be laid out in the actual station. An example of a single line diagram showing multiple generating stations substations transmission lines and distribution lines appears here. Circuit breaker 3p thermal.
Moving to the bottom area of the single line diagram notice that the circuit breaker b3 in the middle is connected to the bus in the bottom portion. A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current from an overload or short circuit its basic function is to interrupt current flow after a fault is detected. In a common design incoming lines have a disconnect switch and a circuit breaker. Circuit breakers symbols for use in electrical pneumatic and hydraulic schematic diagrams.
This time however the circuit breaker is a fixed low voltage circuit breaker as indicated by the symbol. Single line symbols electrical symbols used to represent various electrical devices for usages in electrical schematic design. Available in svg png jpg dxf dwg formats. The symbol for a thermal fuse used in any electrical circuit diagram.