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Calculation Method of Modification Factors for Fault Location Algorithm Using Boosting Current of Operating Electric Train in AT Feeding System
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 Title & Authors
Calculation Method of Modification Factors for Fault Location Algorithm Using Boosting Current of Operating Electric Train in AT Feeding System
Kim, Cheol-Hwan; Kim, Sung-Ryul; Kwon, Sung-Il; Cho, Gyu-Jung; Kim, Chul-Hwan; Song, In-Keun;
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 Abstract
In general, a fault locator is installed in Sub-Station of AT(Auto-transformer) feeding system to estimate the fault location and to protect the Korean AT feeding system. Since the line impedance characteristic is different to normal 3-phase transmission line, we need particular modification factors, which can be calculated using fault location recording data, to estimate the accurate fault location. Up to recently, forcible ground test has been used to calculate the modification factors of the fault locator. However, large amount of current is occurred when the forcible ground test is performed, and this current affects to adjacent equipments. Therefore, we proposed a novel calculation method of modification factors, arbitrary trip test, using boosting current of the operating electric train. Through several field test, we confirmed that modification factors for fault locator can be easily calculated by using proposed method. Moreover, we verified the accuracy and stability of the proposed calculation method.
 Keywords
AT Feeding system;Fault locator;Field test;Modification factors;
 Language
Korean
 Cited by
 References
1.
J. C. Kim, Analysis of power supply system and understanding of the Korean electric railway, Kidari, 2008.

2.
B. Kim, "Electric railway power engineering", Kidari, 2005.

3.
Y. S. Kim, H. C. Yoo, "Electric railway engineering", Dong-il, 2005.

4.
S. K. Hong, "A Study on Fault Locator using Forward Impedance and Reverse Impedance", Master's thesis, Woosong University, 2014.

5.
S. R. Kim, "A Study on Fault Locator to decrease Estimation Error in Electric Railway", Master's thesis, Chosun University, 2015.

6.
H. S. Jung, Y. Park, H. C. Kim, M. H. Min, M. C. Shin, "A Study on Fault Location Estimation Technique Using the distribution Ratio of Catenary Current in AC Feeding System", Journal of the Korean Society for Railway, Vol. 14, No. 5, pp. 404-410, October 2011. crossref(new window)

7.
H. S. Jung, "A Study on Real Time Catenary Impedance Estimation Technique using the Synchronized Measuring Data between Substation and Train", The Transactions of the Korean Institute of Electrical Engineers, Vol. 62, No. 10, pp. 1458-1464, 2013. crossref(new window)