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What is a Shunt Reactor?

Shunt reactor: Stabilizes voltage in high-voltage systems (>400kV) via reactive power compensation. Uses gapped core/air core designs for dynamic overvoltage control.

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What is a  Shunt Reactor?


Shunt Reactor Definition


A shunt reactor is defined as an electrical device used in high voltage power systems to stabilize voltage during load changes.



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Voltage Stabilization


It controls dynamic overvoltage and provides capacitive reactive power compensation in systems above 400kV.



Impedance Types


Shunt reactors come in gapped core or magnetically shielded air core types to maintain constant impedance and avoid harmonic currents.



Loss Measurement Methods


Losses are measured at lower voltages for high voltage reactors and scaled up; the bridge method is preferred due to the low power factor.


 

Operating Conditions


Must handle continuous voltage without overheating, ensuring it operates within safe temperature limits.


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