High-voltage stress can cause partial discharges, which in turn result deterioration of high-voltage equipment, and hence, increased maintenance costs. To this end, corona rings are used as means to capacitive field-grading. In work, topology optimization is employed for designing alternative layouts field-grading a station class surge arrester. The objective the formulated problem homogenize e...

Rogowski coils (RCs) are widely used to measure power or high frequency currents based on their design. In this paper, two types of RCs that circular (traditional) and cylindrical shapes wound using wire covered by varnish constructed. This construction is carried out be suitable for monitoring the discharge current surge arrester installed in distribution system. Concerning RC modeling both co...