3상계통에서 단상변압기에 대한 단락전류계산 기법

A Technique for a Short-Circuit Current Calculation to The Single-Phase Transformer in the Three-Phase Systems

  • 박재훼 (전기안전기술연구원) ;
  • 진태석 (동서대학교 메카트로닉스 공학과)
  • 발행 : 2008.06.01

초록

This paper describes the exact short-circuit current calculation technique for the single-phase transformer which is installed in the three-phase systems and shorted in the secondary side. Not only the results for a short-circuit current calculation in the existing literatures are wrong, but also little literature deals with the short-circuit current for a single-phase transformer. So, this paper presents a theoretical study and calculation method for a single-phase short current. The validity of the presented method is investigated through Simulation using "Power Tools" and "PSim" program.

키워드

참고문헌

  1. 박한종역, 그림풀이 전기설비의 설계 .시공실무, 성안당, pp. 109-111. 2003
  2. LS 산전 제품 카탈로그, 배선용차단기.누전차단기, LS 산전, pp. 169-171
  3. 정용기, 선전기설비기술계산 핸드북, (주)의제전기설비 연구원, pp. I -43 - I -92. 2003
  4. 이순형, 실무자를 위한 수.배전설비의 계획과 설계, 기다리, pp. 157-159. 2007
  5. IEEE Recormrended Practice for Electric Power Distribution for Industrial Plants, short circuit current calculation, pp. 109-184. IEEE Std. 141-1993
  6. Short-circuit currents in three-phase ac. systems, CEI/IEC 60909-0:2001
  7. IEEE Recomrrended Practice for Industrial and Commercial Power Systems Analysis, pp. 165-206, ANSI/IEEE Std 399-1997
  8. IEEE Guide for Protective Relay Applications to Power Transformers, IEEE Std C37.91-2000
  9. Power Tools for Windows, SKM, 2001
  10. PSIM User's Guide, Powersim Inc., 2003