Which aspect is improved by the reduction of fault duration in high-speed transmission protection?

Reducing fault duration in high-speed transmission protection significantly enhances transmission reliability. When a fault occurs, quick detection and isolation are crucial to minimize the adverse effects on the power system. By shortening the duration of the fault, the system can quickly return to normal operating conditions, preventing cascading failures and ensuring that the integrity of the transmission network is maintained.

Increased transmission reliability ensures a stable supply of electricity, decreases the likelihood of outages, and fosters consumer confidence in the electrical grid's performance. The rapid response capability of high-speed transmission protection systems is essential for mitigating the impact of faults and enhancing overall system resilience.

While other aspects like operational costs, voltage stability, and power factor may be indirectly affected by fault duration to some extent, the primary and most direct benefit of reducing fault duration lies in the reliability of the transmission system itself.