Influence of Lightning Characteristics on Back Flashover in Extra High Voltage Transmission Line: A case study

Hardi, Surya; Mirza, Fahad; Bukit, Ferry Rahmat Astianta; Rohana,

doi:10.1088/1742-6596/1811/1/012048

Cited by 10 publications

(4 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Back-flashover (BFO) is a phenomenon which decreases power transmission lines reliability as well as one of the main factors that trigger the outages in the air line [3], [25]- [27]. Overvoltage or overcurrent due to a lightning stroke on the ground wire that fails to be grounded causes the back-flashover.…”

Section: Methods 21 Back-flashovermentioning

confidence: 99%

“…Where R is tower footing resistance (Ω), L is length of electrode rod in soil (m), a is electrode rod radius (m). After obtaining the soil resistivity value of the area, calculating the number of the electrode used to improve the tower footing resistance value is done by using the formula (6) [27], [33]- [37]: where 𝑅 𝑎 is tower footing resistance (Ω), 𝜌 is soil resistivity (Ωm), 𝐿 is buried length of electrode (m), 𝑎 is distance of electrode (m).…”

Section: Soil Resistivity and Tower Footing Resistancementioning

confidence: 99%

See 1 more Smart Citation

Proposal of analysis method to reduce back-flashover rate taking account of tower footing resistance

Warmi

Zulkarnaini²,

Rajab³

et al. 2023

IJECE

View full text Add to dashboard Cite

<span lang="EN-US">The number of lightning stroke on the tower of the 150 kV Koto Panjang-Payakumbuh transmission line located the rocky area has been observed. The high value of tower footing resistance indicates the occurrence of the back-flashover in the transmission line at intensity of 74%. The back-flashover occurrence is dominantly triggered by the tower footing resistance value. Also, the rate of back-flashover has an effect on the value of the tower footing resistance by considering the number of electrode installations. A design is proposed for the grounding system of the tower footings in order to reduce the rate of back-flashover. The results presenting in numerical simulation indicates that it works properly after adding 4 electrodes. That is to say, installing 4 electrodes in each tower has successfully decreased the tower footing resistance value, back-flashovers rate 80% and 90-95% of present value respectively. The insulator voltage can be reduced to less than half of the present voltages as much as 30-50%. In more detail, in tower 77, the value of the tower footing resistance drops to 2.84 Ω, the flashover rate drops to 0.57/100 km/year and the insulator voltage drops to 0.99 MV when a disturbance occurs.</span>

show abstract

Section: Methods 21 Back-flashovermentioning

confidence: 99%

Section: Soil Resistivity and Tower Footing Resistancementioning

confidence: 99%

Proposal of analysis method to reduce back-flashover rate taking account of tower footing resistance

Warmi

Zulkarnaini²,

Rajab³

et al. 2023

IJECE

View full text Add to dashboard Cite

show abstract

“…The maintenance position is determined by the flexible manipulator. The application of the flexible robot for automatic maintenance of the heating line can not only improve the maintenance accuracy, but also reduce the maintenance delay [17][18][19]. Therefore, in order to improve the effectiveness of automatic maintenance of heating defects in high-voltage transmission lines, this paper uses a flexible maintenance robot, compensates the positioning error through a highly adaptive maintenance platform, adjusts the movement state of the maintenance arm, and designs an effective automatic maintenance method of heating defects in high-voltage transmission lines.…”

Section: Introductionmentioning

confidence: 99%

Research on automatic maintenance method of flexible maintenance robot for heating defects of high voltage transmission lines

Hai

Chen

et al. 2023

Second International Conference on Advanced Manufacturing Technology and Manufacturing Systems (ICAMTMS 2023)

View full text Add to dashboard Cite

The conventional automatic maintenance method for heating defects of high voltage transmission lines mainly uses the aggregate spatiotemporal correlation analysis method to obtain the location characteristics of heating defects, which is vulnerable to the change of defect attributes, leading to the high deviation of automatic maintenance positioning distance. Therefore, it is necessary to design a new automatic maintenance method for heating defects of high voltage transmission lines using flexible maintenance robots. That is to say, a flexible robot maintenance platform for thermal defects of highvoltage transmission lines is constructed, which compensates the positioning error of the automatic maintenance of thermal defects of the flexible maintenance robot, optimizes the movement state of the joint of the automatic maintenance arm for thermal defects of the flexible maintenance robot, and thus realizes the automatic maintenance of thermal defects of high-voltage transmission lines. The experimental results show that under the same maintenance environment, the automatic maintenance positioning distance of the automatic maintenance method for heating defects of high-voltage transmission lines based on the flexible maintenance robot designed in this paper is consistent with the actual distance for heating defects, and there is no automatic maintenance positioning deviation, which proves that the designed automatic maintenance method has good maintenance effect, reliability, and certain application value. It has made a certain contribution to improving the operation reliability of high-voltage transmission lines.

show abstract

“…The transmission line also needs bolt fixation and various accessories of the line are exposed all year round. Once damaged, it will threaten the operation safety of the whole power grid [4][5]. Due to the influence of the characteristics of the transmission line itself, the line can only be exposed outdoors.…”

Section: Introductionmentioning

confidence: 99%

The Method of High Precision Self localization of Transmission Line Bolts by Lightweight Maintenance Robot

Hu,

Chen,

et al. 2023

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

The conventional high-precision autonomous positioning method of transmission line bolts mainly focuses on image detection and positioning. Affected by the weather environment, it is difficult to take real-time images of transmission lines, which affects the accuracy of bolt positioning. Therefore, a method of high precision and autonomous positioning of transmission line bolts by the lightweight maintenance robot is designed. Extracting the contour features of the connected area of the bolt cross arm of the transmission line, and marking the connected area of the bolt, it is easier to locate the target bolt. Build a high-precision self positioning model for the transmission line bolts of the lightweight maintenance robot, compensate for the self positioning joint error of the lightweight maintenance robot, and maximize the bolt positioning accuracy. The simulation experiment verifies that the positioning method has higher accuracy and can be applied in real life.

show abstract

Influence of Lightning Characteristics on Back Flashover in Extra High Voltage Transmission Line: A case study

Cited by 10 publications

References 4 publications

Proposal of analysis method to reduce back-flashover rate taking account of tower footing resistance

Proposal of analysis method to reduce back-flashover rate taking account of tower footing resistance

Research on automatic maintenance method of flexible maintenance robot for heating defects of high voltage transmission lines

The Method of High Precision Self localization of Transmission Line Bolts by Lightweight Maintenance Robot

Contact Info

Product

Resources

About