Tag:compensator=static_var
compensator = static_var |
Description |
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Arrangement of static subsystems, usually a thyristor controlled reactor, normally a thyristor switched capacitor and often fixed or switched reactors and capacitor banks to compensate reactive power |
Group: power |
Used on these elements |
Useful combination |
Status: approved |
Tools for this tag |
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A static reactive power (VAR) compensator (SVC) is an arrangement of static subsystems, mostly power electronics with thyristors, as to compensate reactive power.
In practice, it is composed of several thyristor switched or fixed shunt_reactor, shunt_capacitor to provide dynamic and reliable reactive power compensation. They are now preferred over synchronous_condenser because no heavy rotating machinery is required to operate static VAR compensators.
SVCs mostly operate at a lower voltage than the grid they compensate.
A dedicated (not particular) transformer=compensator isolates and lower this voltage upstream of SVC.
They are mainly found in substations, in modern power grids.
Possible confusion with statcom
According to this documentation and visual look, SVC can be mistaken with statcom which is a different compensation mean.
SVC is an arrangement of different systems, thyristor switched or fixed while static compensators are based on transistors and DC voltage source converters.
Local signage or public documentation could make it clear between both.
Examples below could also show the difference, when completed.
How to map
First of all, please refer to general guidelines on power=compensator.
Static VAR compensator may be wide and contained in a barrier=fence area. You will find buildings and several devices inside.
Mapping them as areas enable to document visible and independent subsystems outside, like transformer=compensator, shunt_reactor or shunt_capacitor as different nodes.
All components' nodes are linked with internal power lines with 1 or more cables=*.
Examples
To be completed with in place or aerial pictures