How can we mitigate or control the Ferranti effect in a transmission line?

2025-08-12

Answer: To counter the Ferranti effect, the excess reactive power generated by the line's capacitance must be absorbed. The most common and effective method is by installing shunt reactors at the receiving end of the transmission line.

A shunt reactor is an inductive device that absorbs reactive power, effectively compensating for the capacitive effect of the line. By installing these devices, we can regulate the voltage and maintain it within safe operating limits.

Ningbo Changshi offers a full range of Overhead Transmission line equipment and underground cable laying Equipment, including accessories and tools for the installation and maintenance of such compensation devices. Our products ensure the reliable operation of your power systems, even in the presence of challenging phenomena like the Ferranti effect.

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