Impact of surge arrester number and placement on reliability and lightning overvoltage level in high voltage substations

Mirzaie, Mohammad; Barforoshi, Taghi

doi:10.1016/j.ijepes.2014.09.037

Cited by 11 publications

(5 citation statements)

References 16 publications

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“…The influence of various parameters (i.e., surge front times, soil resistivity, distance of the cable that connects the transformer and the busbar) on the lightning performance of a combined overhead line/cable connected gas-insulated substation is examined in [7], since the role of the earth grid is revealed in [8]. Moreover, the adequate number and the appropriate placement of a surge arrester is also crucial in attempts to upgrade the lightning performance of the power substations [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

A Heuristic Method for the Reduction of the Outage Rate of High-Voltage Substations Due to Atmospheric Overvoltages

Vita

Voglitsis

Milushev³

et al. 2018

Applied Sciences

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Abstract:The adequate protection against lightning surges and the limitation of the expected annual failure rate of high-voltage substations are critical issues, in an effort to secure the safety of the equipment and the personnel. Various factors affect the lightning performance of the substations, determining the developed lightning surges and the expected outage rate, i.e., the grounding resistance, the length of the underground cable between the connected overhead transmission line and the power transformer, and the installation position of the arresters. In the current work, a heuristic method is developed to adjust different parameters of high-voltage substations that upgrade their lightning performance. The proposed methodology can be useful to the studies of substations' designers and engineers, contributing effectively in the reduction or/and elimination of lightning failures.

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Section: Introductionmentioning

confidence: 99%

A Heuristic Method for the Reduction of the Outage Rate of High-Voltage Substations Due to Atmospheric Overvoltages

Vita

Voglitsis

Milushev³

et al. 2018

Applied Sciences

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“…Most of the transmission line substations are equipped with a surge arrester (SA) for lightning protection. SAs are installed at the end of the transmission line and between the instrumentation transformers (VTs/CCVTs and CTs) and transmission line [28]. The location of SA ensures that if the lighting occurs at any location of the transmission line then the surge gets arrested by the SA before it can enter VTs/CCVTs and CTs.…”

Section: Lightning Surgementioning

confidence: 99%

Transmission Line Protection Using Dynamic State Estimation and Advanced Sensors: Experimental Validation

Srivastava

Tuấn

Steen

et al. 2023

IEEE Trans. Power Delivery

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This paper presents the experimental validation of a protection scheme for a transmission line based on dynamic state estimation along with the practical application of advanced sensors in this protection scheme. The scheme performs dynamic state estimation with high-frequency measurements provided by the sensors, assesses the operating condition (i.e., health) of the transmission line in real-time, and thereby determines the tripping signal whenever a fault is detected. The validation was carried out in two steps, first with simulation studies for a three-phase fault and then with the experimental implementation using a physical scaled-down model of a power system consisting of transmission lines, transformers, and loads. The simulation and validation results have shown that the scheme performs adequately in both normal and fault conditions. In the fault case with the experimental setup, the scheme could correctly detect the fault and send the trip signal to the line's circuit breakers with a total fault clearing time of approximately 65 milliseconds which is comparable to conventional protection methods. The average processing time for a measurement sample block is 12.5 milliseconds. The results demonstrate that this scheme and the sensors would work for transmission line protection which can avoid relay coordination and settings issues.

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“…Nominal voltage, tower configuration, tower footing resistance, the number and arrangement of circuits, ground flash density, the wave shape of the lightning, and the corona effect are these factors [1,2]. So far, extensive studies have been carried out to cope with the adverse impact of lightning on TLs and consequently, high-voltage substation [3,4]. These activities have been led to propose various methods such as the utilisation of the conventional USW, the reduction tower footing resistance, the installation of TL surge arresters, and the utilisation of DSW.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the lightning performance of overhead transmission lines with optimal EGLA and downstream shield wire placement in mountainous areas: a complete study

Ahmadi

Niasati

Barzegar-Bafrooei³

2020

IET Science, Measurement & Technology

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Impact of surge arrester number and placement on reliability and lightning overvoltage level in high voltage substations

Cited by 11 publications

References 16 publications

A Heuristic Method for the Reduction of the Outage Rate of High-Voltage Substations Due to Atmospheric Overvoltages

A Heuristic Method for the Reduction of the Outage Rate of High-Voltage Substations Due to Atmospheric Overvoltages

Transmission Line Protection Using Dynamic State Estimation and Advanced Sensors: Experimental Validation

Enhancing the lightning performance of overhead transmission lines with optimal EGLA and downstream shield wire placement in mountainous areas: a complete study

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