Results 11 to 20 of about 314,581 (221)
Comparative Measurement Accuracy Analysis of an Optical Medium Voltage Transducer Pre- and Post-Lightning Impulse Testing [PDF]
SensorsThis paper reports on the performance of an optical voltage transducer (MVT) module after undergoing lightning impulse withstand tests. The device was designed to monitor the output voltage of a dedicated capacitive voltage divider (CVD) to facilitate a ...
Grzegorz Fusiek, Pawel Niewczas
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Lightning Impulse Ageing of HDPE [PDF]
, 2009 This work is concerned with the hypothesis that lightning impulses can lead to accelerated ageing of extruded polymeric cables. The behaviour of an insulation material when suffering lightning impulses is different from that for DC or power frequency over-voltages. Shaped HDPE material samples have been manufactured using a mould tool. The samples then
Dao, N L, Lewin, P L, Swingler, S G
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High Voltage, 2016 At present, the insulation performances of electrical apparatus under lightning impulse voltages are always evaluated by the withstand test of standard lightning impulse voltage (1.2/50 µs), which is recommended by IEC Standard.
Ming Yang, Wenxia Sima, Potao Sun
exaly +3 more sources
Development of a Wideband Precision Electric Field Measuring Sensor [PDF]
Sensors, 2023 High-voltage electric field measurement technology has certain applications in electric field measurement of power systems, but due to the limitation of its measurement accuracy and bandwidth, it cannot be used for the measurement of lightning-impulse ...
Zhaozhi Long +6 more
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Harnessing Thor's Hammer: Experimentally induced lightning trauma to human bone by high impulse current [PDF]
Forensic Science International: Synergy, 2021 Lightning fatality identification relies primarily on soft tissue traumatic pattern recognition, prohibiting cause of death identification in cases of full skeletonisation.
Nicholas Bacci +7 more
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Lightning Impulse Ageing of HV Cable Insulation [PDF]
, 2009 Lightning impulses can lead to accelerated ageing of extruded cables. Electrical behaviour of a dielectric material when experiencing a lightning impulse is different to that for DC or power frequency applied voltages. Pre-designed shaped HDPE material samples have been manufactured using a mould tool. The samples then have been electrically aged using
Dao, N L, Lewin, P L, Swingler, S G
core +2 more sources
Effects of Lightning Impulses on the Dielectric Properties of HDPE [PDF]
, 2009 Impulse over-voltages are very common phenomena in electric power systems. Switching impulses are created by switching surges or local faults while lightning impulses are due to lightning strikes to overhead lines. Both impulses can travel as waves in the system, damaging insulation components and equipment.
Dao, N L, Lewin, P L, Swingler, S G
core +2 more sources
Mitigation of Lightning Overvoltages Using STATCOM in Grid-Connected PV Systems [PDF]
Port Said Engineering Research Journal, 2020 Lightning strike causes a large lightning voltage injection into grid-connected PV systems at the point between inverter and transformer. The overvoltage resulting from the lightning-impulse voltage is a major concern for the multiple expensive ...
ibrahim hamdeen +2 more
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The Impulsive Nature of Lightning Initiation [PDF]
, 2021 <p>We report results from imaging the initiation region of lightning via 3D interferometric beamforming on data collected by the Netherlands-based core of the Low Frequency Array of Antennas (LOFAR). LOFAR achieves 1 nanosecond timing accuracy and meter-scale spatial precision in lightning imaging on pulses observed in the 30-80 MHz band ...
Christopher Sterpka +4 more
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Вестник Научно-исследовательского института железнодорожного транспорта, 2022 Introduction. The article is devoted to the study of the waves propagation of lightning overvoltage impulse in the catenary system of electrified railways.
K. S. Belomestnykh +3 more
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