Which of the following is generally NOT a function of circuit breakers in aircraft electrical systems?

Circuit breakers in aircraft electrical systems serve several key functions that enhance the safety and reliability of the electrical system. One of their primary roles is to protect against overcurrent, effectively interrupting the circuit when the current exceeds a defined limit to prevent damage to electrical components.

Another crucial function is the isolation of faulty circuits. When a fault occurs, circuit breakers can disconnect affected circuits, thereby preventing potential hazards, such as electrical fires, and ensuring that other systems remain operational.

Control of circuit load is also a function of circuit breakers, as they can be used to manage and distribute electrical loads throughout the system, ensuring that no single circuit is overwhelmed.

On the other hand, automatic resetting of power is generally not a function of traditional circuit breakers used in aircraft. While some advanced systems may offer automatic reset capabilities, most circuit breakers require manual intervention to reset after tripping due to a fault, prioritizing safety and preventing inadvertent re-energization of faulty circuits. This makes automatic resetting uncommon in typical aircraft electrical system applications.