KST Out-of-Step Tripping Relay Technical Manual

This document describes the KST out-of-step tripping relay, detailing its components including compensators, auto-transformer, cylinder unit, and telephone relays, and explains its operation for distinguishing between faults and out-of-step conditions on power lines. It covers technical specifications for impedance settings, phase angle adjustments, and the relay's sensing sequence for blocking or tripping during system oscillations.