Semi-analytic calculations of overvoltages caused by direct lightning strike in buried coaxial cable

Aniserowicz, K.; Markowska, R.

doi:10.15199/48.2017.12.01

Cited by 6 publications

(6 citation statements)

References 2 publications

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“…The present work is a continuation of the research presented in [22]- [24]. Papers [22]- [23] dealt with a model of a single buried cable and its validation, and [24] with simplified engineering estimation of maximum values of overvoltages caused by lightning in buried systems. In the present paper, calculations of surge waveforms are carried out using analytical formulations in the frequency domain and the IFFT transform to the time domain.…”

Section: Model Of Underground Cablementioning

confidence: 99%

“…The present work is a continuation of the research presented in [22][23][24]. Papers [22,23] dealt with a model of a single buried cable and its validation, and [24] -with simplified engineering estimation of maximum values of overvoltages caused by lightning in buried systems.…”

Section: Introductionmentioning

confidence: 99%

“…In the present paper, calculations of surge waveforms are carried out using analytical formulations in the frequency domain and the IFFT transform to the time domain. Calculations presented here concern systems that are more complex than those analyzed in [22][23][24], which became possible after overcoming the numerical issues discussed in Section 4.…”

Section: Introductionmentioning

confidence: 99%

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Bulletin of the Polish Academy of Sciences: Technical Sciences

Aniserowicz

2019

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The paper presents an analysis of overvoltages caused by a direct lightning strike in intrusion detection system equipped with underground radiating cable sensors. Waveforms of currents and voltages in the system components are calculated using analytical formulas basing on a transmission-line model in the frequency domain. The time-domain waveforms are computed using the inverse fast Fourier transform (IFFT). Three network configurations of the intrusion detection system are analyzed.

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Section: Model Of Underground Cablementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Bulletin of the Polish Academy of Sciences: Technical Sciences

Aniserowicz

2019

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“…The research has been carried out with using numerical simulations based on the electromagnetic field theory and method of moments. It concerns only some of the above mentioned factors and only partly complements the study on the effects of direct lightning strikes shown in [16]- [18].…”

Section: Exposure Of Underground Cable Intrusion Detection System To mentioning

confidence: 99%

Exposure of Underground Cable Intrusion Detection System to Transient Disturbances Caused by Nearby Lightning Strikes

Markowska

2020

ELEKTRON ELEKTROTECH

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Electronic systems with extensive underground cable installations are endangered by damage or interference during lightning as a result of current and voltage surges induced in the installations. The paper presents the study on the lightning threat to the electronic intrusion detection system based on underground cable sensors during a nearby lightning strike to the pole of the lighting system installed in parallel with the sensory cables. In the extensive intrusion detection system working in a network composed of several controller-sensor-terminator units, a problem arises whether the neighbouring units should or should not be connected galvanically in order the system is less vulnerable to the effects of a lightning electromagnetic pulse. The problem is complex since the threat level may depend on many factors, i.e. the point of the strike, the lightning current, soil parameters, and configurations of the affected systems. The problem has been studied using numerical simulations based on the electromagnetic field theory and method of moments. The results show that the isolated configuration, i.e. without the galvanic continuity between the units, may be better as far as relatively low soil resistivity and low steepness of the lightning current waveform are considered.

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“…At the same time, up to 75-90% of the total number of electrical damages in these cable networks is due to single-phase to ground fault (SPGF) [1][2][3], which are often the primary cause of more severe accidents, accompanied by significant economic damage. At the same time, the current of the SPGF is small, since it is caused by the cable cores capacitance relative to the earth [4][5][6]. In this regard, in accordance with the EIC (Electrical Installation Code), the existence of an SPGF is allowed within two hours, while the relay protection from SPGF can act both on the trip and on the signal [7,8].…”

Section: Protection Of a Two-cable Line From Single Phase-to-earth Famentioning

confidence: 99%

Protection of a Two-Cable Line From Single Phase-to-Earth Fault With Absolute Selectivity

Issabekov¹,

Novozhilov²,

Novozhilov³

et al. 2018

OF THE NATIONAL ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKH

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Semi-analytic calculations of overvoltages caused by direct lightning strike in buried coaxial cable

Cited by 6 publications

References 2 publications

Bulletin of the Polish Academy of Sciences: Technical Sciences

Bulletin of the Polish Academy of Sciences: Technical Sciences

Exposure of Underground Cable Intrusion Detection System to Transient Disturbances Caused by Nearby Lightning Strikes

Protection of a Two-Cable Line From Single Phase-to-Earth Fault With Absolute Selectivity

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