Review of Fault Location Methods for Distribution Power System (.doc)

Review of Fault Location Methods for Distribution Power System (.doc)

Abstract:-


For the pas t fifty y e a rs , electric power s ys tems have rapidly grown. This has res ulted in
a large increas e of the number of lines in op e ra t io n a n d their total length. Thes e lines experience
faults which are caus ed by s torms , lightning, s now, freezing rain, in s u la t io n breakdown and s hort
circuits caus ed by birds and other external objects . In mos t cas es , electrical fault s manifes t in
me chanical damage, which mus t be repaired before returning the line to s ervice. The res tora t io n c a n
be expedited if the location of the fault is either known or can be es timated with reas ona ble accuracy.
Speedy a n d precis e fault location plays an important role in accelerating s ys tem res toration, reducing
outage time and s ignificantly improving s ys tem reliabilit y . T h is p aper provides a comprehens ive
review of the conceptual as pects as well as recent algorithmic d e v e lo p me n t s for fault location on
dis tribution s ys tem. Several fundamentally different approaches are dis cus s ed in the paper together
with the factors affecting the as s umptions of the underlying concepts and the various criteria us ed in
the different approaches are reviewed.

References:-


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