Mechanically switched reactors represent an innovative approach to managing reactive power balance within power transmission systems. Essentially, these reactors combine the functionality of traditional shunt reactors with additional switching devices, enabling dynamic control over reactive power compensation. This detailed overview delves into the operation, benefits, and applications of mechanically switched reactors, shedding light on their significance in modern power system operation and management.

Operation and Functionality: At their core, mechanically switched reactors function similarly to conventional shunt reactors, which are integral components in power transmission networks. Shunt reactors are utilized to regulate the reactive power balance within the system, compensating for surplus reactive power generated by transmission lines or cables. By absorbing or supplying reactive power as needed, shunt reactors help maintain system voltage levels and stabilize network operation.

The distinguishing feature of mechanically switched reactors lies in the incorporation of additional switching devices. These devices facilitate the on/off switching of the reactor based on real-time system conditions. During periods of heavy load or high reactive power demand, the switching device activates the reactor, allowing it to provide reactive power compensation. Conversely, during times of low load or reduced reactive power requirements, the switching device deactivates the reactor, minimizing its impact on the system.