Auto-reclosing dead time control apparatus and method thereof fo

Details Auto-reclosing dead time control apparatus and method thereof fo Auto-reclosing dead time control apparatus and method thereof fo

1996-11-18

1998-09-08

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Automatic reclosing

361 72, 361 93, 361115, H02H 300

Patent

active

058054006

ABSTRACT:
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.

REFERENCES:
patent: 3878436 (1975-04-01), Bogel
patent: 5419197 (1995-05-01), Ogi

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