Shunt Reactors

Shunt Reactors

Shunt reactors are electrical devices that are used to compensate for the capacitive reactive power in high-voltage power transmission systems. They are essentially inductive devices that are connected in parallel with the transmission line. The main function of shunt reactors is to absorb the excess capacitive reactive power that is generated due to the presence of long transmission lines, which can cause voltage instability and power quality issues. Shunt reactors consist of a coil of wire wound around a magnetic core. The coil is connected in parallel with the transmission line and is designed to provide a high level of inductance. When the transmission line generates excess capacitive reactive power, the shunt reactor absorbs this power and converts it into a magnetic field. This magnetic field then stores the energy until it is needed by the system. Shunt reactors are typically used in high-voltage power transmission systems, where long transmission lines are used to transport power over large distances. They are particularly useful in systems that operate at high voltages, where the capacitive reactive power generated by the transmission line can cause voltage instability and power quality issues. By absorbing this excess reactive power, shunt reactors help to maintain a stable voltage profile and ensure that power is delivered to the end user with high quality.

electrical devices, capacitive reactive power, inductive devices, transmission line, voltage instability

— Jason Scott

CITATION : "Jason Scott. 'Shunt Reactors.' Design+Encyclopedia. https://design-encyclopedia.com/define/shunt-reactors?E=396194 (Accessed on October 14, 2026)"