Results 11 to 20 of about 298,259 (190)
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
doaj +2 more sources
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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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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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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Modeling of different tower grounding systems using hybrid continuous circuit-trapezoidal integration method [PDF]
Serbian Journal of Electrical Engineering, 2021 In order to protect the transmission lines against lightning strikes, it is important to investigate the tower grounding system. In this paper, a recent method called hybrid continuous circuit-trapezoidal integration method is used to calculate ...
Asadpourahmadchali Mohammadbagher +2 more
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IET Generation, Transmission & Distribution, 2023 The impulse grounding impedance of tower grounding device is one of the important factors in the lightning protection evaluation of transmission line. The impulse characteristic test of the actual tower grounding device under lightning was rarely carried
Yi Zhang +7 more
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Equivalent circuit model of tower based on full-wave analysis
Energy Reports, 2022 The tower model is very important for the assessment of lightning protection for transmission line. The parameters of tower model mainly rely on the impulse experiments of tower.
Chun Li +6 more
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Gaseous by-products of a CF3I-CO2 gas mixture under lightning impulse and AC breakdowns
, 2017 This paper examines the use of a CF3I-CO2 gas mixture as an environmentally friendly insulation medium in high voltage gas insulated equipment. The gaseous by-products of a 30:70% CF3I:CO2 (Trifluoroiodomethane – Carbon dioxide) gas mixture are examined ...
Haddad, A, Widger, Phillip
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Evaluation of Lightning Impulse Test by Frequency Response Analysis [PDF]
, 2006 In this work are presented the basis for improving the interpretation of transformer lightning impulse test and the development of a graphical user interface system, which allows comparisons of time domain data and frequency response.
Jorge Ramirez +3 more
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