Tag:compensator=shunt_capacitor

From OpenStreetMap Wiki
Jump to navigation Jump to search
Public-images-osm logo.svg compensator = shunt_capacitor
Condensor bank 150kV - 75MVAR.jpg
Description
A capacitor intended to compensate reactive power and branched to a given power edge Show/edit corresponding data item.
Group: power
Used on these elements
may be used on nodesshould not be used on waysshould not be used on areasshould not be used on relations (except multipolygon relations)
Useful combination
Status: approvedPage for proposal

A shunt capacitor (436-02-02) act as a power factor corrector by compensating reactive power. They are connected in parallel of a given network edge or switch gears.
Such capacitors got cuboid shape and definitely don't look like a coil or a cylinder. They used to be stacked according to illustration and are easily distinguishable from other substation equipment.

It differs from series_capacitor as one end of the capacitor is connected to the line to compensate and the other can be grounded or connected to other capacitors if involved in a set (multi phase systems).

They are mainly found in substations and used on alternative current networks.

How to map

First of all, please refer to general guidelines on power=compensator.

A shunt capacitor may be composed of several independent devices, called a set, serving each phase of a multi-phase power line.
In such situations, it is possible to map the capacitors set on a single node and adding cables=*, just like power=switch.
It is also possible to use as many nodes as cables and connect them accordingly.

Examples

Picture Location Tags Note
Condensor bank 150kV - 75MVAR.jpg Belgium

nodepower=compensator
compensator=shunt_capacitor
location=outdoor
voltage=150000
rating=75 MVAr
cables=3
frequency=50

A stack of shunt capacitors connected to 3 phases power network. According to picture author, it's a 75 MVAr rated capacitor connected to a 150 000 volts power grid.

We know it's a shunt capacitor due to common neutral point on the foreground which connect each of the 3 stacks which got each one phase from the power grid at their top.