Energy Duty of Surge Arresters on Power Distribution Lines due to Direct Lightning Hits

Nakada, Kazuo; Yokota, Tsutomu; Yokoyama, Shigeru; Asakawa, Akira; Taniguchi, Hiromitsu; Hashimoto, Akira

doi:10.1541/ieejpes1990.116.9_1083

Cited by 5 publications

(6 citation statements)

References 1 publication

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“…For example, when the grounding resistance at the point of the lightning stroke decreases from 100 W to 10 W, the backflow ratio decreases to about 2/3, but the passing ratio of the surge arrester decreases below that to about 1/4. This is because when the grounding resistance at the point of the lightning stroke becomes smaller, the crest value of the backflow current becomes smaller and the crest value of the surge arrester discharge current also becomes smaller, so that the resistance component of the surge arrester increases and the duration of the surge arrester discharge current becomes shorter [10]. Figure 6 shows the relation of the wave tail duration of the lightning current to the backflow ratio and the passing ratio of the surge arrester.…”

Section: Results Of Analysis 421 Effect Of Grounding Resistance Valmentioning

confidence: 99%

“…However, the passing ratio of the surge arrester in the absence of an overhead ground wire will decrease as the wave tail duration becomes longer if the wave tail duration is over 20 ms. This is because the charge of the lightning current is roughly proportional to the wave tail duration but the charge of the surge arrester current in the presence of an overhead ground wire is proportional to about the 0.3 to 0.5 power of the wave tail duration [10]. Figure 7 shows the relation of the installation interval of surge arresters to the backflow ratio and the passing ratio of the surge arrester.…”

Section: Effect Of Wave Tail Duration Of Lightning Currentmentioning

confidence: 99%

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Distribution arrester outages caused by lightning backflow current flowing from customer's facility into power distribution lines

et al. 1999

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Direct lightning strokes are considered to be a main cause of damage to surge arresters on power distribution lines. Recently, lightning performance of distribution lines has been observed using still cameras, and lightning‐caused distribution outages on hilltop areas on the coast of the Sea of Japan have been investigated. This research has shown a possibility that lightning backflow current flowing from customer facilities into distribution lines causes damage to surge arresters on the distribution lines. We have investigated the lightning backflow current flowing from customer facilities into distribution lines as a cause of damage to surge arresters. The main results are as follows: (1) The electric charge of the backflow current flowing into distribution lines is more than 60% of that of the lightning stroke current. (2) If the grounding resistance of the customer's facility is not low, the failure rates of a surge arrester caused by backflow current due to winter lightning is more than 90% of that caused by direct lightning strokes. © 1999 Scripta Technica, Electr Eng Jpn, 126(3): 9–20, 1999

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Section: Results Of Analysis 421 Effect Of Grounding Resistance Valmentioning

confidence: 99%

Section: Effect Of Wave Tail Duration Of Lightning Currentmentioning

confidence: 99%

Distribution arrester outages caused by lightning backflow current flowing from customer's facility into power distribution lines

et al. 1999

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“…This is because the charge of the lightning current is roughly proportional to the wave tail duration but the charge of the surge arrester current in the presence of an overhead ground wire is proportional to about the 0.3 to 0.5 power of the wave tail duration [10]. However, the passing ratio of the surge arrester in the absence of an overhead ground wire will decrease as the wave tail duration becomes longer if the wave tail duration is over 20 ms.…”

Section: Effect Of Wave Tail Duration Of Lightning Currentmentioning

confidence: 99%

“…This is because when the grounding resistance at the point of the lightning stroke becomes smaller, the crest value of the backflow current becomes smaller and the crest value of the surge arrester discharge current also becomes smaller, so that the resistance component of the surge arrester increases and the duration of the surge arrester discharge current becomes shorter [10]. However, the passing ratio of the surge arrester in the presence of an overhead ground wire becomes smaller, in addition to the decrease in the backflow ratio, as the grounding resistance becomes smaller.…”

Section: Conditions Of Analysismentioning

confidence: 99%

Distribution Arrester Outages Caused by Lightning Backflow Current Flowing from Customer's Facility into Power Distribution Lines

Nakada¹,

Yokota²,

Yokoyama³

et al. 1997

IEEJ Trans. PE

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Direct lightning strokes are considered to be a main cause of damage to surge arresters on power distribution lines. Recently, lightning performance of distribution lines has been observed using still cameras, and lightning-caused distribution outages on hilltop areas on the coast of the Sea of Japan have been investigated. This research has shown a possibility that lightning backflow current flowing from customer facilities into distribution lines causes damage to surge arresters on the distribution lines.We have investigated the lightning backflow current flowing from customer facilities into distribution lines as a cause of damage to surge arresters. The main results are as follows:(1) The electric charge of the backflow current flowing into distribution lines is more than 60% of that of the lightning stroke current.(2) If the grounding resistance of the customers facility is not low, the failure rates of a surge arrester caused by backflow current due to winter lightning is more than 90% of that caused by direct lightning strokes. © 1999 Scripta Technica, Electr Eng Jpn, 126(3): 920, 1999

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“…A statistical distribution of these parameters frequently assumed is [6]: -I=30.1 kA, and σ ln I =0.76 -t f =77.5 µs, and σ ln t =0.58 The front steepness of a lightning stroke is much faster than the tail time, so it has a negligible influence on the energy absorption in comparison with the peak current and the time to half value. Therefore the rise time value is fixed at 2 µs [7].…”

Section: Lightning Parametersmentioning

confidence: 99%

Selection of station surge arresters based on the evaluation of failure probability using artificial neural networks

Shariatinasab

Vahidi

Hosseinian

et al. 2007

2007 42nd International Universities Power Engineering Conference

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Considering the lightning strikes, failure probability of arresters due to the highly nonlinear voltage stresses and current characteristics (v-i) of the arresters is not obvious. It means that the evaluation of failure probability and the energy capacity can be a difficult and long task. This paper presents an artificial neural network (ANN) based approach to estimate directly the failure probability of an arrester and then indirectly select the proper energy capacity to fulfill the adopted failure rate. The application of ANN is applied to a group of arresters and the results of the ANN test coincide with the analytical ones.

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Energy Duty of Surge Arresters on Power Distribution Lines due to Direct Lightning Hits

Cited by 5 publications

References 1 publication

Distribution arrester outages caused by lightning backflow current flowing from customer's facility into power distribution lines

Distribution arrester outages caused by lightning backflow current flowing from customer's facility into power distribution lines

Distribution Arrester Outages Caused by Lightning Backflow Current Flowing from Customer's Facility into Power Distribution Lines

Selection of station surge arresters based on the evaluation of failure probability using artificial neural networks

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