Determination of Lightning Response of Transmission Lines by Means or Geometrical Models

Fisher, F. A.; Anderson, John G.; Hagenguth, J. H.

doi:10.1109/aieepas.1959.4500648

Cited by 47 publications

(14 citation statements)

References 9 publications

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“…3). The input impedance seen by the source and the current distribution along the tower in the frequency domain are, respectively, given by [22] (11) (12) In the case of the antenna representation, the impedance is simply (13) where is the voltage between the terminals of the current generator, connected between the base of the tower and the earth.…”

Section: Comparison Between Transmission-line and Antenna Approachesmentioning

confidence: 99%

“…Fig. 8 shows the input impedance computed by the two antenna codes and simple transmission-line theory (12). Two different methods for evaluation of the voltage to ground at feed point, required for the impedance, are applied.…”

Section: Comparison Between Transmission-line and Antenna Approachesmentioning

confidence: 99%

“…Based on: i) circuit and transmission-line theory [7], [10], [13], [15]; ii) waveguide theory [11]; iii) electromagnetic-field theory [5], [6], [8], [9]. 2) Experimental a) on scaled models [12]- [14], [16]; b) on actual towers [14]. Whatever the approach is, the aimed quantity usually is the so-called "surge impedance."…”

Section: Introductionmentioning

confidence: 99%

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On Tower Impedances for Transient Analysis

Grcev

Rachidi

2004

IEEE Trans. Power Delivery

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Abstract-The analysis of the dynamic behavior of power transmission line and telecommunication towers is of interest in protection and EMC studies related to lightning. Usually, time-domain surge impedance is used to characterize tower dynamic behavior. The main drawback in the definition of such surge impedance is that it is dependent on the excitation waveshape and there is no consensus on the current waveshape to be used. Also, there is no consensus on the unique definition of the involved voltage. This paper explores possibilities for a systematized approach to the analysis and uniquely defined quantities that characterize transient response of towers. Further, limitations associated with simplified approaches are emphasized by examining examples of direct comparison between computations based on transmission-line approach and antenna theory for a 100-m tall tower. It is pointed out that problems in the definition of voltages might occur above 100 kHz, especially near resonant frequencies, while differences in current distribution exist already at the lowest frequencies.

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Section: Comparison Between Transmission-line and Antenna Approachesmentioning

confidence: 99%

Section: Comparison Between Transmission-line and Antenna Approachesmentioning

confidence: 99%

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On Tower Impedances for Transient Analysis

Grcev

Rachidi

2004

IEEE Trans. Power Delivery

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“…In an effort to maintain failure rates in a low level, providing high power quality and avoiding damages and disturbances, plenty of lightning performance estimation studies have been conducted [1][2][3][4][5][6][7][8][9][10][11][12][13] and several design methodologies have been proposed [14][15][16][17][18][19]. Designing appears to be the most important issue in the lightning performance of a transmission line, not only because differences in the design parameters values affect significantly the lightning performance but also because is practically impossible to make improvements and modifications in an existing transmission line.…”

Section: Introductionmentioning

confidence: 99%

An optimal design method for improving the lightning performance of overhead high voltage transmission lines

Ekonomou

Iracleous

Gonos

et al. 2006

Electric Power Systems Research

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“…Additionally, the scale-model technique is necessary to measure very fast transients. A scale model study is sometimes carried out for obtaining a surge characteristic such as the tower surge impedance or the lightning-induced voltage on which a numerical simulation gives poor accuracy, or is not established [8][9].…”

Section: Yokoyama Et Al Proposed a New Cause Of Lightning Trouble Onmentioning

confidence: 99%

Experimental Study on Absorption Energy of a Distribution Line Arrester by a Scale-Model Technique

Sekioka¹

2000

IEEJ Trans. PE

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Lightning overvoltages due to a nearby lightning stroke, a direct lightning hit, a backflow lightning current caused by ground potential rise or a backflow current flowing from a customer's facility appear on power distribution lines because the insulation level of the distribution lines is relatively lower than that of the transmission lines. However, it is difficult to represent sufficiently the lightning overvoltages in a numerical simulation. A new factor of the scale-model technique for absorption energy analysis of a surge arrester is introduced in the paper. The factor is determined from the voltage-current characteristic and the critical absorption energy of the surge arrester. This paper describes experimental results on the backflow currents using the proposed scale-model technique. The experimental results confirm that the scale-model technique using the proposed factor is applicable to the study on absorption energy of a surge arrester in a distribution system. This paper introduces a new factor of the scale-model technique to make an experiment for analysis taking into account the voltage-current (V-I) characteristic and the absorption energy of a surge arrester. Then, experimental results considering the surge characteristics of the surge arrester by the scale-model technique are described, and it is confirmed that the proposed factor is applicable to lightning surge analyses of surge arresters on power distribution lines. 6T.

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Determination of Lightning Response of Transmission Lines by Means or Geometrical Models

Cited by 47 publications

References 9 publications

On Tower Impedances for Transient Analysis

On Tower Impedances for Transient Analysis

An optimal design method for improving the lightning performance of overhead high voltage transmission lines

Experimental Study on Absorption Energy of a Distribution Line Arrester by a Scale-Model Technique

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