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2014, New distribution engineering, KIEE, Bookshill, pp. 457-523

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Jong-Il Park, Kyebyung Lee, Chang-Hyun Park, 2018, A Study on the Over Current Relay Misoperation in Power System with Distributed Generations, The Korean Institute of Electrical Engineers, Vol. 67, No. 12, pp. 1705-1710

Seung-Taek Lim, Sung-Hun Lim, 2017, Study on Improvement of Overcurernt Relay (OCR)s Operation Due to Application of Superconducting Fault Current Limiter (SFCL) in Power Distribution System with a Dispersed Generation, The Korean Institute of Electrical Engineers, Vol. 66, No. 2, pp. 300-304

Hong-Kyoo Choi, Kyung-Chul Kim, Jung-Suk Oh, Byung- Chul Kim, 2014, A Study on the Overcurrent Relay Coordination in Power Systems, The Korean Institute of Illumi- nating and electrical Installation Engineers, pp. 351-358

Jin-Sol Song, Gyu-Jung Cho, Ji-Soo Kim, Jae-Yun Shin, Dong-Hyun Kim, Chul-Hwan Kim, 2018, A Study on the Optimal Setting Method of Directional Overcurrent Relay Con- sidering Fault Ride Through of Distributed Generation, The transactions of The Korean Institute of Electrical Engineers, Vol. 67, No. 8, pp. 1002-1008

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Man-Young Cho, 2007, Directional Protection Relay System Study for Power System Interconnection of Dispersed Generations, Master thesis paper of Soongsil University

Protective equipment according to articles 18 (protective devices) to 3 of the technical standard linking the distributed power distribution system of KEPCO.

Korea Electrical Safety Corporation Electric Safety Education Coauthor, November 2017, Electric equipment trouble example and interpretation

Dae -Seok Rho, Chan-Hyeok Kim, Chang-Hoon Shin, Won- Wook Heong, 2008, A Study on the Optimal Method for Malfunction of Protection Devices in Distribution Systems Interconnected with Photovoltaic Systems, Journal of the Korean Academy of Science and Technology, Vol. 9, No. 6, pp. 1599-1606

LS Industrial System, 2018, Digital Relay Catalog