Semi-Analytic Calculations of Overvoltages caused by Direct Lightning Strike in Buried Coaxial Cable

Published by Karol ANISEROWICZ, Renata MARKOWSKA, Bialystok University of Technology Abstract. Results of calculations of overvoltages caused by a direct lightning strike to an underground coaxial cable are presented. Analytic formulas are used in the frequency domain. The time-domain waveforms are computed using the Inverse Discrete Fourier Transform (IDFT). Streszczenie. Przedstawiono wyniki obliczeń przepięć spowodowanychContinue reading “Semi-Analytic Calculations of Overvoltages caused by Direct Lightning Strike in Buried Coaxial Cable”

Problems of Measuring the Electrical Parameters of Geopolymer Concretes

Published by 1. Michał KOZIOŁ1, 2. Jarosław ZYGARLICKI1, 3. Dariusz ZMARZŁY1, 4. Elżbieta JANOWSKA-RENKAS2, Politechnika Opolska, Wydział Elektrotechniki, Automatyki i Informatyki (1), Politechnika Opolska, Wydział Budownictwa i Architektury (2)ORCID: 1. 0000-0001-9075-8656; 2. 0000-0001-9330-4369; 3. 0000-0001-9421-4277; 4. 0000-0002-1877-6216 Abstract. The article presents the problems of measuring electrical parameters on the example of determining the resistivity ofContinue reading “Problems of Measuring the Electrical Parameters of Geopolymer Concretes”