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2. Single-line diagram - Wikipedia

   en.wikipedia.org/wiki/Single-line_diagram

   A typical one-line diagram with annotated power flows. Red boxes represent circuit breakers, grey lines represent three-phase bus and interconnecting conductors, the orange circle represents an electric generator, the green spiral is an inductor, and the three overlapping blue circles represent a double-wound transformer with a tertiary winding.

3. Dia (software) - Wikipedia

   en.wikipedia.org/wiki/Dia_(software)

   Dia (/ ˈ d iː ə /) [3] is free and open source general-purpose diagramming software, developed originally by Alexander Larsson. [1] It uses a controlled single document interface (SDI) similar to GIMP and Inkscape.

4. Substation Configuration Language - Wikipedia

   en.wikipedia.org/wiki/Substation_Configuration...

   The file contains a single IED section, an optional communication section and an optional substation part which denotes the physical entities corresponding to the IED. System Specification Description (SSD) file: This file contains complete specification of a substation automation system including single line diagram for the substation and its ...

5. Power-flow study - Wikipedia

   en.wikipedia.org/wiki/Power-flow_study

   In power engineering, the power-flow study, or load-flow study, is a numerical analysis of the flow of electric power in an interconnected system. A power-flow study usually uses simplified notations such as a one-line diagram and per-unit system, and focuses on various aspects of AC power parameters, such as Voltage, voltage angles, real power and reactive power.

6. Schematic - Wikipedia

   en.wikipedia.org/wiki/Schematic

   Electrical diagrams for switchgear often have common device functions designate by standard function numbers. Another type of diagram used for power systems is a three-line diagram. For analysis purposes of a power system, from the one-line diagram, if the system is balanced, an equivalent per-phase (or single-phase) schematic diagram can be ...

7. Electrical system design - Wikipedia

   en.wikipedia.org/wiki/Electrical_system_design

   One-line diagrams represent the three or four conductors of three-phase power circuits with one line. Wiring diagrams are sometimes made. These show and name the termination points and names of each conductor. In some systems, enough information can be put onto the schematics so that wiring diagrams are not needed.

8. Mechanical systems drawing - Wikipedia

   en.wikipedia.org/wiki/Mechanical_systems_drawing

   The schematic is a line diagram, not necessarily to scale, that describes interconnection of components in a system. The main features of a schematic drawing show: A two dimensional layout with divisions that show distribution of the system between building levels, or an isometric-style layout that shows distribution of systems across ...

9. Software architecture - Wikipedia

   en.wikipedia.org/wiki/Software_architecture

   Early attempts to capture and explain software architecture of a system were imprecise and disorganized, often characterized by a set of box-and-line diagrams. [26] Software architecture as a concept has its origins in the research of Edsger Dijkstra in 1968 and David Parnas in the early 1970s. These scientists emphasized that the structure of ...