Current Passing Through Grounding System of ...

Current injecting a grounding system of high voltage substation decides the amplitude and the voltage distribution along the grounding grid [1]-[2]. Therefore, the determination of short circuit current at substation is always cared by the designers. [9] suggested a new method to calculate the current passing through grounding system of high voltage substation when lightning strikes on the grounding wire of transmission line regardless of the impacting parameters. This paper studied clearly the influence of above parameters and from this, some interesting results were received.