Preventive Measures to Reduce Bird-Related Power Outages—Part I: Electrocution and Collision

Burnham, J.T.; Carlton, R.; Cherney, E.A.; Couret, G.; Eldridge, K.T.; Farzaneh, M.; Frazier, S.D.; Gorur, R.S.; Harness, Richard E.; Shaffner, D.; Siegel, Stanley G.; Varner, J.

doi:10.1109/tpwrd.2003.822947

Cited by 28 publications

(10 citation statements)

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“…Mounts represent a permanent fix, whereas covers are an additional unit requiring some level of maintenance because they can potentially break off (Guil et al ). They may also result in damage to conductors from corona discharge and conductor abrasion, and cause problems such as flashover or power creep as a result of dust or ice accumulation (Burnham et al , Göcsei et al ). Likewise, mirrors will also have a maintenance cost; over a 5‐year period, the primary cause of failure for rotating‐mirror units on the Ullbayan–Munkhkhaan line was detachment from the cross‐arm, most of which occurred in the first 2 years after deployment.…”

Section: Discussionmentioning

confidence: 99%

Mitigation techniques to reduce avian electrocution rates

et al. 2019

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From August 2013, we undertook a 1-year trial of mitigation techniques at an electricity power line in the Mongolian steppe with a high avian electrocution rate. We examined 2 mitigation methods at phase-1 conductors on the top of power poles (i.e., reconfiguration of the insulator mount and insulation covers on the conductor wire) and 3 mitigation methods at phase-2 and 3 conductors on pole cross-arms (i.e., perch deflector brushes, rotating-mirror perch deterrents, and insulation covers on the conductor wires). The perch management techniques selected for the trial are currently widely adopted by power line managers in Mongolia. In comparison with the control, with no mitigation, electrocution rates were reduced both by the reconfiguration of insulator mounts and insulation of conductor wires at phase-1, though the reduction was greater for the former-73% mean reduction for reconfigured mounts and 59% for insulation covers. Electrocution rates were reduced by the placement of rotating-mirrors and insulation of conductor wires at phases 2 and 3, with the reduction being greater for the former-91% mean reduction for mirrors and 66% for insulation covers. Deployment of metal perch deflector brushes at phases 2 and 3 had no effect on electrocution rates and should not be used as mitigation. Most electrocutions occurred at phase 1 on the top of the pole, indicating that mitigation should be prioritized at this phase. In terms of cost and efficacy, reconfigured mounts represented the best option as a permanent fix at phase 1. At phases on cross-arms, the relative merits of mirrors and insulation covers need to be assessed over a longer period, and these temporary mitigation measures should be compared with alternative permanent fixes.

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Section: Discussionmentioning

confidence: 99%

Mitigation techniques to reduce avian electrocution rates

et al. 2019

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“…He concluded that most outages are preventable by establishing proper animal clearance. Burnham et al (2004) studied outages caused by only birds and proposed some modifications to the existing standard designs as a solution. The modifications are pole-line reconfiguration, the use of cover-up materials, etc.…”

Section: Electrical Outagesmentioning

confidence: 99%

“…This research was followed by Sundararajan et al (2004) in which some procedures are recommended to reduce bird-related outages on transmission lines, in substations and on overhead distribution lines. Insulation of electrical objects is proposed by Burnham et al (2004) and Sundararajan et al (2004) as a solution to electrical outages problem. In this paper, insulation of the conductive parts of electrical substations is also proposed based on a new approach of utilizing a 3D as-built plan of the electrical substation obtained from LiDAR data.…”

Section: Electrical Outagesmentioning

confidence: 99%

Automatic extraction of insulators from 3D LiDAR data of an electrical substation

Arastounia

Lichti

2013

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci.

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ABSTRACT:A considerable percentage of power outages are caused by animals that come into contact with conductive elements of electrical substations. These can be prevented by insulating conductive electrical objects, for which a 3D as-built plan of the substation is crucial. This research aims to create such a 3D as-built plan using terrestrial LiDAR data while in this paper the aim is to extract insulators, which are key objects in electrical substations. This paper proposes a segmentation method based on a new approach of finding the principle direction of points' distribution. This is done by forming and analysing the distribution matrix whose elements are the range of points in 9 different directions in 3D space. Comparison of the computational performance of our method with PCA (principal component analysis) shows that our approach is 25% faster since it utilizes zero-order moments while PCA computes the first-and second-order moments, which is more time-consuming. A knowledge-based approach has been developed to automatically recognize points on insulators. The method utilizes known insulator properties such as diameter and the number and the spacing of their rings. The results achieved indicate that 24 out of 27 insulators could be recognized while the 3 un-recognized ones were highly occluded. Check point analysis was performed by manually cropping all points on insulators. The results of check point analysis show that the accuracy, precision and recall of insulator recognition are 98%, 86% and 81%, respectively. It is concluded that automatic object extraction from electrical substations using only LiDAR data is not only possible but also promising. Moreover, our developed approach to determine the directional distribution of points is computationally more efficient for segmentation of objects in electrical substations compared to PCA. Finally our knowledge-based method is promising to recognize points on electrical objects as it was successfully applied for insulators.

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“…Many observations and analysis as well as a large number of flashover tests on bird pest faults have been carried out by domestic and foreign scholars [4, 5]. The use of perch guards, metal, or plastic spikes, insulating caps, alternate perch sites and washing insulators regularly can significantly reduce bird‐related streamer and contamination outages [6, 7]. The main bird prevention devices of bird fault in transmission lines are box of bird guard, needle of bird guard, shield of bird guard, and insulation sheath [8–10].…”

Section: Introductionmentioning

confidence: 99%