Abstract
In this paper, the induced charge tomography (ICT) technique is developed to reconstruct the electric field distribution in a gas insulated transmission line (GIL). Based on a simplified 2D model of a 1000 kV GIL, two cases are assigned to verify the feasibility of the ICT technique. After inversion, the reconstructed permittivity and electric field distributions are highly consistent with the assigned cases. The ICT technique has the ability of not only identifying the outlines of insulators but also diagnosing the defects inside insulators. In the future, this technique has the potential of being adopted in the online monitoring and diagnosing of compact electrical devices.
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