Title :
A laboratory investigation of a digital protection technique for parallel transmission lines
Author :
Gilany, M.I. ; Malik, O.P. ; Hope, G.S.
Author_Institution :
Dept. of Electr. Eng., Cairo Univ., Giza, Egypt
fDate :
1/1/1995 12:00:00 AM
Abstract :
A digital algorithm for the protection of parallel power transmission lines has been implemented on a 16-bit single board computer. It has been tested on a physical model consisting of two synchronous machines connected through a double circuit line. The algorithm is based on comparing magnitudes of currents of two parallel lines. Details of the experimental set-up and the results of online tests for various operating conditions are presented. A procedure to adjust the relay settings adaptively is also incorporated. The results illustrate the successful operation of the algorithm in detecting faults on parallel lines
Keywords :
microcomputer applications; power system control; power system protection; power system relaying; power transmission lines; real-time systems; 16 bit; algorithm; digital protection; laboratory; online tests; parallel power transmission lines; power systems; relay settings; single board computer; synchronous machines; Circuit faults; Circuit testing; Concurrent computing; Digital relays; Fault detection; Laboratories; Phase detection; Power system relaying; Protection; Transmission lines;
Journal_Title :
Power Delivery, IEEE Transactions on
