Testability Analysis of Grounding Grids Using Network Transformation

A novel topology analysis method is presented to analyze the testability of grounding grids, and creditability is firstly proposed as an important index to evaluate the results. In this method, inaccessible nodes are eliminated by wye-delta transformation, followed by the calculation of testability...

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Hauptverfasser:	Tao Niu, Yingjiao Zhang, Debo Zhang, Liqiang Liu, Xianjue Luo
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Circuit testing Conductors creditability Equations fault diagnosis Grounding grounding grids Information analysis Iterative algorithms Network topology network transformation Parameter estimation Power system simulation Substations testability
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Beschreibung
Zusammenfassung:	A novel topology analysis method is presented to analyze the testability of grounding grids, and creditability is firstly proposed as an important index to evaluate the results. In this method, inaccessible nodes are eliminated by wye-delta transformation, followed by the calculation of testability and creditability index in the reverse direction. Simulation results are provided to prove this method.
DOI:	10.1109/IAS.2009.238