Advanced Observations of Lightning Induced Voltage on Power Distribution Lines (II)

Yokoyama, Shigeru; Miyake, Kunihiko; Mitani, Hiroshi; Yamazaki, Nobuharu

doi:10.1109/mper.1989.4310334

Cited by 8 publications

(4 citation statements)

References 15 publications

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“…Lightning‐induced voltages have a significant dependence not only on the distance but also on the relative position of the stroke location with respect to the line and to the observation point [1, 10, 11]. Even though the locations of the lightning strokes that induced the recorded voltages presented in this Section were not available, the shorter wavetails observed in the measured induced voltages, in comparison with the standard lightning impulse voltage, are coherent with calculations [1–11, 14, 15, 27] and also with measurements performed in other studies [16, 18–24, 27–31].…”

Section: Results and Analysissupporting

confidence: 86%

“…Frequency distributions of the peak values of lightning-induced voltages have been proposed by Andreotti et al based on computer simulations [14,15]. Experimental studies including measurements of lightning surges on medium and low-voltage lines have been performed in different countries [16][17][18][19][20][21][22][23][24][25][26][27][28][29]. However, the line configuration has a great influence on the lightning-induced voltages [1,2,30,31] and, due to the different lengths, termination conditions, and topologies of the lines, the characteristics of the measured surges are not directly comparable.…”

Section: Introductionmentioning

confidence: 99%

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Characteristics of lightning‐induced voltages based on experimental data

Santos

Piantini

2020

High Voltage

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This paper presents an analysis of 64 lightning‐induced voltage waveforms recorded in an experimental system implemented in the campus of the University of São Paulo, Brazil. The voltages were measured on a 10 m high, 2.7 km long un‐energized overhead line consisting of two conductors installed on 6 m crossarms. One of the conductors had surge arresters, while the other one was left unprotected. Strictly speaking, all the recorded voltages on the unprotected conductor were bipolar, but in many cases only one semi‐cycle could be considered important for practical purposes. Different criteria are discussed for the determination of the waveshape parameters, which may differ significantly from those of the standard lightning impulse voltage (1.2/50 μs). Based on the proposed criterion for classifying the induced voltages, unipolar waveforms accounted for 67% of the total and, except for one case, all of them had positive polarity. The median values of the front time and time‐to‐half‐value were, respectively, 5.2 μs and 15.8 μs. Bipolar waveforms were 33% of the total and in approximately 62% of the cases the first semi‐cycle was of positive polarity. In 91% of the cases the voltage peak occurred either in the first or the second semi‐cycle.

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Section: Results and Analysissupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Characteristics of lightning‐induced voltages based on experimental data

Santos

Piantini

2020

High Voltage

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“…A large number of experimental recordings have been published by Yokoyama et al . [13][14][15]. They conducted the simultaneous measurement a Correspondence to: Yijun Zhang.…”

Section: Introductionmentioning

confidence: 99%

Experiments on lightning protection for automatic weather stations using artificially triggered lightning

Zhang

Chen

Zheng

et al. 2013

IEEJ Transactions Elec Engng

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This paper focuses on the voltages electromagnetically induced by the multiple return strokes involved in a triggered lightning on an overhead power line and a vertical signal line of an automatic weather station (AWS), and the backflow currents and residual voltages in a surge protection device (SPD) embedded in the power line. Pulses of voltage on the overhead power line corresponding to the return strokes with the peak currents ranging from −6.67 to −26.47 kA showed bipolar features. Subpeaks and main peaks ranged from 0.99 to 4.47 kV and from −4.98 to −10.31 kV, respectively. The voltage waveforms corresponding to the return strokes on the vertical signal line of wind speed were of two types: with and without a subpeak after the main peak. All the main peaks, with the peak value from −0.41 to −3.10 kV, were ‘V’ shaped. A significant relationship exists between the peak currents of the return strokes and the 10–90% average gradients of the voltages. The peaks of currents through the SPD ranged from −0.22 to −1.64 kA. The durations of residual voltages ranged from 0.6 to 5.9 ms, average value being 2.1 ms. © 2013 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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“…The Theory of Simulation Calculation According to the description of modern engineering calculation theories of lightning induction overvoltage [5], there are three stages in forming induction overvoltage in distribution line: forming a lightning channel, electromagnetic propagation and field-to-line coupling. The analysis and description on the three models above were detailed in paper [6].…”

Section: Comparison Between the Experimental Results And Numerical Re...mentioning

confidence: 99%

Research on Reduced Scale Experiment of Induced Overvoltage on Distribution Line

Huang

Tang

2014

AMM

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Lightning is one of the most important reason of outage of distribution line. And nearly 90% of the accidents of lightning failure is result of lightning induced overvoltage. In order to protect the distribution line from lightning, it is required to have a comprehensive understanding of characteristic of lightning induced overvoltage. Due to the advantage of reduced scale experiment, which are controllable and practical, the characteristic of lightning induced overvoltage is got from it. Comparing the results of experiment with the results of calculation, it is found that changes of overvoltage with height and distance match well with the calculated results, which show that the reduced scale experiment is effective and proper.

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Advanced Observations of Lightning Induced Voltage on Power Distribution Lines (II)

Cited by 8 publications

References 15 publications

Characteristics of lightning‐induced voltages based on experimental data

Characteristics of lightning‐induced voltages based on experimental data

Experiments on lightning protection for automatic weather stations using artificially triggered lightning

Research on Reduced Scale Experiment of Induced Overvoltage on Distribution Line

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