AC Conductivity Measurement of Conductor Sleeves

The use of overhead covered conductors and conductor sleeves plays a crucial role to provide insulation and safety from the environmental hazards in the power systems. Covered conductors have a rigid insulation layer over a bare conductor, which restricts their flexibility especially in hilly areas or wherever the sharp turn is required. In contrast, conductor sleeves offer a more flexible structure, allowing their easy installation, replacement if required, and are cost-effective. However, investigation of the optimal design of conductor sleeves requires an accurate measurement of the AC conductivity. In this paper, an experimental setup and its methodology for the measurement of AC conductivity on the surface and in the interface of conductor sleeves is proposed. Additionally, dielectric spectroscopy has been performed to determine volumetric AC conductivity.