Title :
Transmission-Line Fault Analysis Using Synchronized Sampling
Author :
Dutta, Pranab ; Esmaeilian, A. ; Kezunovic, Mladen
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
An automated analysis approach, which can automatically characterize fault and subsequent relay operation, is the focus of this paper. It utilizes synchronized samples captured during transients from both ends of the transmission line to detect, classify, and locate transmission-line faults and can verify that the tripped line has indeed experienced a fault. The proposed method is tested for several faults simulated on an IEEE 118-bus test system and it has been concluded that it can detect and classify a fault using prefault and postfault recorded samples within 7 ms of fault inception and can accurately locate a fault with 3% accuracy. This time response performance is highly desirable since with the increasing use of modern circuit breakers, which can open the faulty line in less than two cycles, the time window of the captured waveforms is significantly reduced due to the unavailability of measurement signals after breakers open.
Keywords :
circuit breakers; fault location; power transmission faults; power transmission protection; sampling methods; IEEE 118-bus test system; circuit breakers; fault inception; postfault classification; prefault classification; synchronized sampling; transmission-line fault analysis; Circuit faults; Fault detection; Power transmission lines; Reactive power; Relays; Transmission line measurements; Voltage measurement; Electromagnetic transients; fault detection; fault location; power system faults; power system protection;
Journal_Title :
Power Delivery, IEEE Transactions on
DOI :
10.1109/TPWRD.2013.2296788