Which of the following is not listed as a benefit of placing automatic switches in the power system?

• A. Reliability
• B. Flexibility
• C. Safeguards
• D. Increased operational complexity

Answer: (D)

Automatic switches improve how the system responds to changes and faults by enabling quick, automatic actions that help keep power flowing safely. They boost reliability because faults can be isolated rapidly, reducing how long customers are without power and preventing cascading outages. They provide flexibility by allowing the network to be reconfigured on the fly, routing power around problems or adjusting to changing load, without waiting for manual operations. They also enhance safeguards by automatically disconnecting faulty sections to protect equipment and personnel, preventing further damage.

Increased operational complexity is not listed as a benefit. Adding automatic switches tends to introduce more control logic, coordination requirements, and maintenance needs, which can make operations more complex rather than simpler.