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  2. Track circuit - Wikipedia

    en.wikipedia.org/wiki/Track_circuit

    Schematic drawing of track circuit for unoccupied block (series resistor next to battery not shown) Schematic drawing of occupied track circuit (series resistor next to battery not shown) A track circuit typically has power applied to each rail and a relay coil wired across them. When no train is present, the relay is energised by the current ...

  3. SAP IS-U - Wikipedia

    en.wikipedia.org/wiki/SAP_IS-U

    SAP IS-U is SAP's Industry-Specific Solution for the Utilities Industry.SAP IS-U is a sales and information system that supports utility and waste disposal companies.. SAP IS-U supports business functions such as meter reading, meter data management, scheduling, billing, invoicing, accounting, customer service, and integration to customer relations management.

  4. Electronic symbol - Wikipedia

    en.wikipedia.org/wiki/Electronic_symbol

    Wire crossover symbols for circuit diagrams. The CAD symbol for insulated crossing wires is the same as the older, non-CAD symbol for non-insulated crossing wires. To avoid confusion, the wire "jump" (semi-circle) symbol for insulated wires in non-CAD schematics is recommended (as opposed to using the CAD-style symbol for no connection), so as to avoid confusion with the original, older style ...

  5. Circuit diagram - Wikipedia

    en.wikipedia.org/wiki/Circuit_diagram

    A circuit diagram (or: wiring diagram, electrical diagram, elementary diagram, electronic schematic) is a graphical representation of an electrical circuit. A pictorial circuit diagram uses simple images of components, while a schematic diagram shows the components and interconnections of the circuit using standardized symbolic representations.

  6. Wiring diagram - Wikipedia

    en.wikipedia.org/wiki/Wiring_diagram

    An automotive wiring diagram, showing useful information such as crimp connection locations and wire colors. These details may not be so easily found on a more schematic drawing. A wiring diagram is a simplified conventional pictorial representation of an electrical circuit. It shows the components of the circuit as simplified shapes, and the ...

  7. Switchyard reactor - Wikipedia

    en.wikipedia.org/wiki/Switchyard_reactor

    In an electric power transmission grid system, switchyard reactors are large inductors installed at substations to help stabilize the power system. For transmission lines, the space between the overhead line and the ground forms a capacitor parallel to transmission line, which causes an increase in voltage as the distance increases.

  8. N2 chart - Wikipedia

    en.wikipedia.org/wiki/N2_Chart

    The N 2 chart or N 2 diagram (pronounced "en-two" or "en-squared") is a chart or diagram in the shape of a matrix, representing functional or physical interfaces between system elements. It is used to systematically identify, define, tabulate, design, and analyze functional and physical interfaces.

  9. Eastern Green Links - Wikipedia

    en.wikipedia.org/wiki/Eastern_Green_Links

    SEGL1 will run from Torness in Southeast Scotland to Hawthorn Pit substation in Murton, County Durham. [3] Landfall in England will be to the North of Seaham, on the Durham Coast. [ 4 ] It is developed by Scottish Power Transmission plc (SPT) and National Grid Electricity Transmission plc (National Grid) [ 3 ] with a budget of £1.294 billion.