Auto-reclosing dead time control apparatus and method thereof for transmission cable protection relay system

摘要

An improved auto-reclosing dead time control apparatus and a method thereof for a transmission cable protection relay system which is capable of providing an on-line stability evaluation method which is capable of controlling the dead time of the transmission cable automatic reclosing relay in accordance with the stability margin, which includes an electrical system for controlling an automatic reclosing operation in accordance with a variation of a transmission cable failure dead time, a transient stability margin evaluation means for evaluating a transient stability margin in accordance with a failure information inputted from the electrical system, and a reclosing relay means for varying the dead time in accordance with a transient stability margin evaluated by the transient stability margin evaluation means.