MODELING OF ROGOWSKI COIL FOR ON-LINE PD MONITORING IN COVERED- CONDUCTOR OVERHEAD DISTRIBUTION NETWORKS

In this paper, EMTP/ATP simulation environment is used to model the Rogowski coil for partial discharge (PD) monitoring due to leaning trees on the covered-conductor (CC) overhead distribution lines. The simulations are performed to obtain the Rogowski coil response at different lengths of the CC line and the results are compared with those obtained from the laboratory measurements. The results confirm that ATP simulations can effectively be carried out to model the transient behavior of the Rogowski coil for on-line PD detection.

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