A Study on the Measurement Technique of the Grounding Mesh Resistance by Field Measurements

현장실측에 의한 메시(Mesh)접지저항 출정기법 연구

  • 한기붕 (한국전기안정공사 전기안정시험연구원) ;
  • 김삼수 (한국전기안정공사 전기안정시험연구원) ;
  • 정세중 (한국전기안정공사 전기안정시험연구원) ;
  • 이상익 (한국전기안정공사 전기안정시험연구원)
  • Published : 1999.05.01

Abstract

In this paper, we have provided the measurement technique of the grounding mesh resistance by field measurements. The standard of measurement is specified in the IEEE Std 81.2-1991 and JEAC 5001-1988, which is the the fall-of-potential method by test-current injection, but this method is difficult to apply at field, where is small around a electric power substation of domestic. For the convenient measurement method, space of assistant probe and quantity of test-current injection are changed step for step. As the result, ' the proposed measurement technique of grounding mesh resistance is that the space of current and potential probes must be fixed at 150rn from a grounding mesh, the test-current injection has to keep 5A or more.

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