대한전기학회논문지:전력기술부문A (The Transactions of the Korean Institute of Electrical Engineers A)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

전압불평형의 표현방식에 관한 연구(I) - 선간전압 크기에 의한 불평형계수의 표현 -

A Study on the Representation of Voltage Unbalance: Part I-Voltage Unbalance Factor in terms of Line Voltage Magnitudes

  • 정승기 (광운대 전자정보대 전기공학과)
  • 발행 : 2003.05.01
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초록

The voltage unbalance factor derived from symmetrical component analysis requires manipulation of complex quantities. To facilitate the calculation of the voltage unbalance factor in field applications, this paper proposes the method for calculating the voltage unbalance factor in terms of the line voltage magnitudes that are readily available in moat practical circumstances. It is shown that the line voltages appear as circular Phasor loci for given voltage unbalance factor, and a graphical chart is developed that can be used to determine the voltage unbalance factor in a straightforward manner avoiding calculation.

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참고문헌

  1. D. R. Smith, H. R. Braunstein, and J. D. Borst, 'Voltage unbalance in 3- and 4-wire delta secondary systems,' IEEE Trans. on Power Delivery, vol. 3, no. 2, pp. 733-741, April 1988 https://doi.org/10.1109/61.4312
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  4. IEC Standard 61000-4-27: Testing and measurement techniques Unbalance, immunity test, August 2000
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