Tag:line=busbar
 line = busbar
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| Description |
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Identifies a power line as a busbar, the central connection in a substation 
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| Group: power |
| Used on these elements |
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| Requires |
| Useful combination |
| See also |
Status: approved
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The tag line=busbar is added to power=line to map a busbar: the central connection in a substation, which links all circuits of the same voltage together. Incoming power lines and cables, as well as transformers and other equipment, are connected to the busbar by power lines called bays.
A busbar assembly comprises either rigid tubular conductors or flexible conductors. Strictly spoken, the term busbar refers to just one conductor but commonly the combination of three conductors is also called a busbar, which is the definition used here.
Substations will normally have one busbar per voltage level, with the highest-voltage busbar being the most obvious, as it has the largest conductor spacing.
Tagging
| Key | Value | Comment | Recommendation |
|---|---|---|---|
| power | line | Defines this  as a generic power line. |
Mandatory |
| line | busbar | Identifies the line as a busbar assembly. | Mandatory |
| busbar | rigid / flexible | Whether the busbar consists of rigid, tubular bars or flexible, suspended wires | Optional |
| cables | <3,6,..> | Number of individual conductors. It is recommended to map each three-phase busbar assembly individually. However, if double or triple busbars for some reasons are mapped as a single way the cables tag should be used to indicate this fact. | Recommended |
| voltage | <voltage> | The voltage of the busbar. | Recommended |
Substation components
A typical substation comprises at least the following components:
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Gray: Substation
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Possible tagging mistakes
See also
- line=bay - A power line within a substation which connects a circuit to a busbar
- power=substation - A facility which controls the flow of electricity in a power network with transformers, switchgear or compensators.
- power=transformer - A device for stepping up or down electric voltage. Large power transformers are typically located inside substations.
- power=switch - A device which allows electrical network operators to power up & down lines and transformers in substations or along the power grid.
- power=portal - A supporting structure for power lines, composed of vertical legs with cables between them attached to a horizontal crossarm.