Fault section identification method for mixed line in AC transmission system
Paper i proceeding, 2014

The increasing utilization of the mixed line requires more reliable technique to identify the fault section to overcome all the disadvantages of the existing schemes. Distance relay technique is not accurate and limited to one configuration of mixed line while the differential relay is more expensive since it requires more measurement hardware in the junction points and related communication channels along the whole length of the line. Based on the modern communication technology and digital signal processing technology development such as global positioning system (GPS) and high sampling frequency introduction in the signal processing domains, an accurate scheme with reasonable price is needed to identify fault section and configure the auto reclosing scheme to meet the increased demand on the mixed line.

Fault section identification

Protection solutions

Mixed line



J. Wang


H. Albinali

Chalmers, Energi och miljö, Elkraftteknik

Lina Bertling Tjernberg

Chalmers, Energi och miljö, Elkraftteknik

12th IET International Conference on Developments in Power System Protection, DPSP 2014; Copenhagen; Denmark; 31 March 2014 through 3 April 2014

Vol. 2014 626 CP 12-56
978-184919834-9 (ISBN)


Annan elektroteknik och elektronik



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