Current Impulses in the Lightning Protection System of a Test House in Poland

Maslowski, Grzegorz; Rakov, Vladimir A.; Wyderka, S.; Ziemba, R.; Karnas, G.; Filik, K.

doi:10.1109/temc.2014.2382556

Cited by 20 publications

(8 citation statements)

References 26 publications

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“…3 together with the equivalent electrical diagrams of the test system. The detailed characteristics of the whole test site and test equipment used in the experimental investigations have been presented in [11].…”

Section: Test Sitementioning

confidence: 99%

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Measurements and modeling of electromagnetic disturbances in the lightning protection system of the residential building

Maslowski

Ziemba

2016

ELECTROTECHNICAL REVIEW

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The paper presents measurements and computational results of the impulse current distribution in lightning protection system (LPS) obtained based on a circuit approach and a frequency-domain full-wave approach. There is a good agreement between computed and measured currents at the test site using the mobile impulse current generator and small residential structure. Small differences in the current waveshapes result mainly from the adopted mathematical approximation which does not perfectly match the current waveshape injected from the generator. Streszczenie. W artykule zaprezentowano wyniki pomiarów i obliczeń rozpływu prądu udarowego w instalacji odgromowej budynku. Obliczenia wykonano dla modeli obwodowego i polowego. Otrzymano dobrą zgodność wyników obliczeniowymi z pomiarami. Małe różnice w kształtach prądów wynikają głównie z przyjętej do obliczeń matematycznej aproksymacji prądu udarowego, która nie odwzorowuje dokładnie prądu z generatora. (Pomiary i modelowanie zaburzeń elektromagnetycznych w instalacji odgromowej budynku mieszkalnego).

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Section: Test Sitementioning

confidence: 99%

“…Note that the ground resistivity of clay soil in Poland was almost two order of magnitude lower than for sandy soil at Camp Blanding (less than 100 m for clay soil versus 4000 m for sandy soil). Recent experimental results has been presented in detail in [11].…”

Section: Introductionmentioning

confidence: 99%

Measurements and modeling of electromagnetic disturbances in the lightning protection system of the residential building

Maslowski

Ziemba

2016

ELECTROTECHNICAL REVIEW

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“…1 near to all symbols of groundings are the dc resistances of each ground rod or grounding system. The conductor (5) represented the uninsulated buried flat bar conductor connecting the ground rod (4) with the grounding system of supplying underground cable line (7). In addition at the open air test side they are connected with the PEN conductor of cable line at the cable termination box (6).…”

Section: The Proposed Model Of the Lpsmentioning

confidence: 99%

“…The International Center for Lightning Research and Testing (ICLRT) at Camp Blanding, Florida is one of the centres involved with this subject [1][2][3]. Similar studies are carried out at the Rzeszow University of Technology in a cooperation with ICLRT since 2007 [4][5][6][7][8]. There is a real scale simple model of residential house, located at the test side in Huta Poręby near Rzeszów, with dedicated LPS system connected to the electrical supplying installation.…”

Section: Introductionmentioning

confidence: 99%

Lightning current distribution in a laboratory model of lightning protection system

Filik

Karnas

Szczupak

et al. 2016

ELECTROTECHNICAL REVIEW

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The paper presents the results of preliminary laboratory tests of impulse current distribution in a model of the lightning protection system (LPS). The wooden frame house was prepared in a scale 1:5. It was based on the full size object subjected to lightning currents during open air experiments at the test side in Huta Poręby near Rzeszów. It was equipped with the model of the lightning protection system connected to the supplying electrical installation. The surge current injected to the tested system in the laboratory was produced with use of the lightning transient generator. Measurements were done for three varied shapes of the injected impulse current. The obtained results indicated the frequency dependent behaviour of the tested system. The current distribution in the proposed laboratory model of LPS is similar to those achieved during the tests on the real scale objects in recent years.Streszczenie. W artykule przedstawiono wyniki badań laboratoryjnych rozpływu prądów piorunowych w modelu urządzenia piorunochronnego. W skali 1:5 przygotowano drewniany szkielet budynku mieszkalnego, odwzorowujący obiekt używany do poligonowych badań rozpływu prądów udarowych w jego instalacjach piorunochronnej oraz elektrycznej, prowadzonych w Hucie Poręby niedaleko Rzeszowa. Zaproponowany model odzwierciedla istniejącą na poligonie instalację odgromową wraz z przyłączoną do niej niezasiloną typową elektryczną instalacją w postaci wewnętrznej sieci elektrycznej nn wraz z osprzętem, dochodzącej do złącza kablowego ziemnej linii kablowej nn, stacji transformatorowej i linii napowietrznej SN. Pomiarów dokonano dla trzech różnych kształtów wstrzykiwanego prądu udarowego. Uzyskane rozpływy prądów impulsowych są zbliżone do tych, obserwowanych podczas poligonowych badań pełnowymiarowych systemów przez ostatnie lata. Badany model wykazuje zależny od częstotliwości charakter. (Rozpływ prądów udarowych w modelu laboratoryjnym urządzenia piorunochronnego).

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“…The impact of lightning strikes on general buildings has been studied before [13][14][15][16]. In [13], the transient electric field was calculated inside a building struck by a lightning strike.…”

Section: Introductionmentioning

confidence: 99%

Assessment of wind turbine transient overvoltages when struck by lightning: experimental and analytical study

Zalhaf

Abdel‐Salam

Mansour

et al. 2019

IET Renewable Power Generation

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This paper is aimed at presenting a numerical method for calculating the transient overvoltage across a wind turbine (WT) struck by lightning. The resulting overvoltage is determined at different points along the WT body using the proposed numerical method. The lightning strike has been simulated by injecting a current impulse to the tested WT. The equivalent circuits of WT components and the mathematical formulas to evaluate the circuit's parameters are presented. This makes it possible to develop π-equivalent RLC networks representing the WT components to write the nodal equations at each discrete time instant. MATLAB software package is used to solve the nodal equations and determine the transient behaviour of the WT. In the laboratory, a high impulse voltage is applied on a small-scale WT to corroborate the proposed method. The calculated overvoltage temporal variations are in good agreement with those measured at different positions along the WT for various grounding resistance values, demonstrating the validity of the proposed method. Further validation is also made by comparing the present simulation with that using PSCAD/EMTDC software package. The overvoltage values increase with the rise of the grounding resistance value. The obtained results are useful for designing WT lightning protection systems.

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Current Impulses in the Lightning Protection System of a Test House in Poland

Cited by 20 publications

References 26 publications

Measurements and modeling of electromagnetic disturbances in the lightning protection system of the residential building

Measurements and modeling of electromagnetic disturbances in the lightning protection system of the residential building

Lightning current distribution in a laboratory model of lightning protection system

Assessment of wind turbine transient overvoltages when struck by lightning: experimental and analytical study

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