The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Establishment of Preventive Measures against Faults Based on the Area of Severity to Voltage Sags

순간전압강하 가혹지역에 기반한 사고예방 대책 수립

  • Park, Chang-Hyun (Depart. of Electrical Engineering, Pukyong National University) ;
  • Lee, Kyebyung (School of Electrical Engineering, Korea University) ;
  • Lee, Hansang (School of Electrical & Railway Engineering, Kyungil University) ;
  • Yoon, Dong-Hee (Depart. of New and Renewable Energy, Kyungil University)
  • Received : 2015.09.19
  • Accepted : 2015.10.27
  • Published : 2015.11.01
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Abstract

This paper presents an effective approach for establishing countermeasures against voltage sags based on the concept of area of severity. In order to apply preventive measures against faults such as lightning arrester, overhead earth wires and so on, it is important to find optimal points for installing the preventive measures. The optimal points can be determined by the calculation of the area of severity(AOS) to voltage sags and the expected sag frequency per unit length of line. In this paper, an effective method to find optimal points to apply countermeasures against voltage sags is addressed with case studies.

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References

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