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Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

ISO Journal TitleJ Korean Inst. IIIum. Electr. Install. Eng.
Title The Study on the Actual Examination of the Bidirectional Protection Device in the 22.9[kV] Distribution Power System Interconnected with the DG
Authors Heung-Jae Lee ; Myoung-Ho Choi
DOI http://dx.doi.org/10.5207/JIEIE.2011.25.10.102
Page pp.102-108
ISSN 1225-1135
Keywords Bidirectional Device ; Distribution Power System With DG ; Real Examination
Abstract The existing power flow has a single direction to the line end but the bidirectional power flow will possibly occur depending on the output capacity in the 22.9[kV] distribution power system connected with the dispersed generation(DG). So these characteristics would influence the power system management. The DG have many advantages such as assistance source, Load share etc. So the utility must apply the bidirectional protection system so as to maximize an advantage of DG. This paper describes the field test case of bidirectional protective device in order to investigate the device performance when applied to bidirectional power system. We have tested in the power system test site of KEPCO and these tests provide the basis for performance verification test of bidirectional protective device in the power system.