Title :
Which One Is Better - Line Differential or Directional Comparison?
Author :
Tholomier, D. ; Richards, Sean ; Apostolov, Alex
Author_Institution :
AREVA T&D Autom., Montreal, QC
Abstract :
High-speed protection of transmission lines for faults anywhere in the zone of protection is achieved using unit protection based on communications between the relays at all ends of the line. The paper compares line differential protection with directional comparison protection in order to present the benefits and deficiencies of each of these two protection systems.
Keywords :
power transmission lines; power transmission protection; directional comparison protection; faults; high speed protection; line differential protection; transmission lines; unit protection; zone of protection; Circuit faults; Current measurement; Power system transients; Propagation delay; Relays; Transient analysis; Voltage measurement;
Conference_Titel :
Developments in Power System Protection, 2008. DPSP 2008. IET 9th International Conference on
Conference_Location :
Glasgow
Print_ISBN :
978-0-86341-902-7
