Title :
High-speed directional comparison protection of transmission lines
Author :
Apostolov, A.P. ; Tholomier, D. ; Richards, S.H.
Author_Institution :
AREVA T&D Autom., Los Angeles
Abstract :
Improvements of system stability and reduction in the effects of shunt type faults in transmission and bulk systems on sensitive industrial loads can be achieved through the development of protection relays with sub-cycle operating times for faults anywhere on the transmission line. State-of-the-art communications methods and advanced algorithms allow the implementation of such solutions. The paper discusses in detail a directional comparison protection system based on superimposed components directional detection. A new relay-to-relay communications protocol meets the requirements of different schemes and at the same time ensures fast operating times over different communications chanels.
Keywords :
fault diagnosis; power system relaying; power system stability; power transmission protection; protocols; telecommunication channels; bulk systems; communications chanels; high-speed directional comparison protection; industrial loads; protection relays; relay-to-relay communications protocol; shunt type faults; superimposed components directional detection; system stability; transmission lines; transmission systems; Acceleration; Automation; Circuit faults; Cyclic redundancy check; Distributed parameter circuits; Power system protection; Protective relaying; Protocols; Stability; Transmission lines; Directional comparison; Protective relaying; Superimposed components;
Conference_Titel :
Power Tech, 2005 IEEE Russia
Conference_Location :
St. Petersburg
Print_ISBN :
978-5-93208-034-4
Electronic_ISBN :
978-5-93208-034-4
DOI :
10.1109/PTC.2005.4524667
