Impedance-based fault location techniques for transmission lines

Faults that occur on transmission lines are relatively more common in countries that have extreme weather. Most faults in such countries are caused by lightning storms. For long distance transmission lines, it takes a long time to find the faulted point. This not only prolongs the time of removing a...

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Bibliographic Details
Main Authors: Hashim, M.M.I., Hew Wooi Ping, Ramachandaramurthy, V.K.
Format: Conference Proceeding
Language:English
Subjects:
charching capacitor
Fault location
fault locator
faulted point
Impedance
Modefied Takagi method
Power generation economics
Power system faults
Power system modeling
Power system reliability
Power system restoration
Power transmission lines
PSAT
PSCAD
PSCAD/EMTDC
reactance effect
Simple reactance method
singleterminal
Takagi method
Transmission lines
transposed TL
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Summary:Faults that occur on transmission lines are relatively more common in countries that have extreme weather. Most faults in such countries are caused by lightning storms. For long distance transmission lines, it takes a long time to find the faulted point. This not only prolongs the time of removing and recovering the fault, but also increases economical damages. If fault can be precisely located, maintenance crew can reach the faulted point quickly, and remove the fault in time. So the precise locating of the faulted point on a transmission line is very important to remove fault, improvement of system reliability, and decrease of economic damages as an inherent consequence of a long term outages. Hence, the fault location methods become of much importance for utilities and researches. In this paper, three of single-terminal impedance-based fault location techniques will be investigated to show the reliability and deficiency of each technique.
ISSN:2159-3442
2159-3450
DOI:10.1109/TENCON.2009.5396253