In the last decade, design engineers have been increasingly required to calculate the ampacities of cable lines using the finite element method (FEM) according to IEC TR 62095, especially for cases that cannot be solved analytically based on IEC 60287. In this regard, CIGRE Study Committee B1 noted in 2020 that there are many gaps in the technical report IEC TR 62095 and then published in 2025 a technical brochure. However, a certain number of those gaps still remained unaddressed. This paper proposes concrete solutions for addressing several gaps related to underground single-core power cables in trefoil formations. 110 kV single-core cables with cross-linked polyethylene insulation are con... More >

This paper analyzes the lightning protection of a 110~kV substation in a wind park, focusing on transients caused by lightning strikes to the connected 110~kV overhead line. Two configurations of surge arresters are compared: 1) application of the standard surge arresters installed in the line bay between the grounding system and phase conductors, 2) application of the surge arresters at the gantry tower. Both solutions are compared from the aspect of maximum amplitudes of lightning transients in the substation, as well as from the aspect of the energy stress of two sets of surge arresters at the 110 kV voltage level. Regarding the maximum amplitudes of lightning transients in the substati... More >

The results of numerical simulation of temperature modes of cross-linked polyethylene (XLPE) cable under transient states for International Thermonuclear Experimental Reactor (ITER) application are presented. The pulsed electric current load in the external circuit rapidly changes with the maximum values of 1.5 kA during tens of seconds decay with a period of 1200 s that corresponds to operation modes of the ITER fusion reactor. The core temperature achieves periodic steady-state at 20000 s, which is consistent with 4-5 cable thermal constant (~ 4500 s). The numerical results obtained reveal that the skin effect plays an insignificant role on core temperature dynamics. Multiphysics mode... More >

This paper presents a Taguchi-tuned Particle Swarm Optimization (PSO) approach for the optimal placement and sizing of shunt capacitor banks (CBs) in unbalanced distribution systems. The optimization aims to minimize the total operational cost by reducing power losses and improving voltage profile. A systematic parameter tuning was carried out using the Taguchi method based on an L25 orthogonal array, with five PSO parameters evaluated through Signal-to-Noise (SN) ratios and Analysis of Variance (ANOVA). The IEEE 13-bus test feeder was used as a benchmark. The results show that the installation of four optimally placed CBs reduces active power losses by 29.6% (from 133.16 kW to 93.71 kW),... More >

ICCK Transactions on Electric Power Networks and Systems is an academic journal devoted to research and further advancement of knowledge on phenomena related to electric power systems that connect electricity generation with consumers through transmission and distribution networks. Specifically, this journal will deal with the modeling and analyses of various problems related to the generation, transmission, distribution, consumption and trade of electricity. The concepts of electric power system security, safety, stability, flexibility, reliability, restoration, resilience, planning, operation, control and protection will be interrelated and considered by authors from different perspectives... More >