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논문 기본 정보

저자정보
(KEPCO Research Institute) (KEPCO Research Institute) (KEPCO) (KEPCO) (KEPCO) (KEPCO)
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대한전기학회 전기학회논문지 전기학회논문지 제74권 제5호
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    초록·키워드

    In order to improve the reliability of protection systems, performance verification tests of protection relays are essential. KEPCO applies pre-defined test procedures using RTDS for this purpose[13]. For transformer protection relays, performance verification under internal winding fault conditions is necessary. RSCAD/RTDS offers internal fault models not available in similar programs, but it has limitations in representing the actual short-circuit characteristics of three-winding transformers. In contrast, transient analysis programs like PSCAD or EMTP can simulate faults without requiring expensive equipment like RTDS and effectively express the actual short-circuit characteristics of transformers. However, they lack internal fault models. This paper proposes a method to address the limitations of three-winding transformers in RTDS. Additionally, it presents techniques to implement transformer internal faults in ATP-EMTP equivalent to those in RTDS, along with comparative verification cases using the RTDS model.

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      UCI(KEPA) : I410-151-25-02-093114132