Single Line Diagram Symbols. A single line diagram or sld is a simple visual representation of three phase power systems. Basics 9 4 16 kv pump schematic.
Basics 8 aov elementary block diagram. Single line diagram sld we usually depict the electrical distribution system by a graphic representation called a single line diagram sld. All transmission lines distributions lines and power transformers are also three phases in nature.
Note the coloring used to illustrate circuit breaker states green off and red on which is how single line diagrams typically appear on computer based scada system displays.
Rockis 2001 one line diagrams one line diagram a diagram that uses single lines and graphic symbols to indicate the path and components of an electrical circuit. Basics 7 4 16 kv 3 line diagram. Basics 11 mov schematic with block included basics 12 12 208 vac panel diagram. A set of commonly used single line diagram symbols appears on the next two pages.
