Recovery characteristics after the interruption of fault arcs in UHV‐DC transmission lines

Sunabe, Kinya; Inaba, Tsuginori

doi:10.1002/eej.4391110107

Cited by 6 publications

(6 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this case, the minimum value t RCL of the no-voltage time required from the arc extinction to the beginning of restarting can be determined as [2] …”

Section: Insulation Recovery Characteristics By Simulated DC Startingmentioning

confidence: 99%

“…1 Rodrod electrode assembly of interval 1 to 5 m simulating an arcing horn [2] 2 500-kV tension insulator assembly for the Kii Channel dc transmission project [3] 3 500-kV dc tension insulator assembly and three kinds (V-, Y-, and I-arranged) of suspension insulator assemblies composed of suspension insulators for ac transmission.…”

Section: Introductionmentioning

confidence: 99%

“…Accordingly, the authors have proposed a method for calculating the minimum no-voltage time for successful restart from the dc starting voltage waveforms expressed in mathematical equations and the insulation recovery characteristics determined by the switching impulse voltage [2]. Then, the minimum no-voltage times are calculated for the aforementioned respective assemblies [26].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of starting voltage waveform on time sequence to restart DC transmission lines

2000

View full text Add to dashboard Cite

Based on experiments and calculations, this paper describes the influence of the time constant of the dc starting voltage on the no‐voltage time required for successful restarting and the time required to complete the restarting. (1) The 300‐kV‐class dc tension insulator assembly tested in this study was composed of disk‐type insulator units used for ac transmission lines. The insulation recovery characteristics of the dc tension insulator assembly after dc arc extinctions of 400 and 4000 A were obtained for the switching impulse voltage and simulated dc starting voltage. The results show that both methods obtained the same minimum values for the required no‐voltage time. Thus, we verified this method's validity in calculating the minimum value of the no‐voltage time required for successful restarting based on the insulation recovery characteristics obtained by the switching impulse voltage. (2) Based on the insulation recovery characteristics obtained by the switching impulse voltage after arc extinction, we calculated the relationships between the required no‐voltage time and restarting completion time versus the time constant of the dc starting voltage. As the rising time constant of the dc starting voltage increased, the required no‐voltage time decreased and the restarting completion time increased. It was shown that reducing the rising time constant of the dc starting voltage was an effective measure to shorten the restarting completion time after the arc extinction. © 2000 Scripta Technica, Electr Eng Jpn, 133(4): 63–70, 2000

show abstract

“…In this case, the minimum value t RCL of the no-voltage time required from the arc extinction to the beginning of restarting can be determined as [2] …”

Section: Insulation Recovery Characteristics By Simulated DC Startingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of starting voltage waveform on time sequence to restart DC transmission lines

2000

View full text Add to dashboard Cite

show abstract

“…Therefore, the authors have experimentally determined the insulation recovery characteristics after the dc arc extinction using a measuring setup with horizontally arranged rod-to-rod electrodes to estimate the time required for the fault clearance in a 500-kV dc power transmission line. The results show that for a gap of 5 m between the electrodes, the minimum time required for the fault clearance is on the order of 0.1 s [3].…”

Section: Introductionmentioning

confidence: 99%

“…Since in such cases the fault arc path runs along the surface of the insulator, the arc and the postarc gases stick close to the insulator. In addition, since in insulators without arc horns, the insulator socket caps or ball pins act as arc electrodes, it is difficult to create an arc jet of a uniform direction, which can lead to the disappearance of the effect [3] of gas removal by the air flow created by the arc jet. This may result in slower insulation recovery characteristics after the fault arc extinction than those of conventional insulator assemblies equipped with arc horns.…”

Section: Introductionmentioning

confidence: 99%

Insulation recovery characteristics of 500 kV class dc insulator assemblies after arc extinction

1999

View full text Add to dashboard Cite

Insulation recovery characteristics after fault arc interruption on UHV (1000 kV class) transmission lines

Goda

Matsuda

Inabe

et al. 1993

IEEE Trans. Power Delivery

View full text Add to dashboard Cite

Recovery characteristics after the interruption of fault arcs in UHV‐DC transmission lines

Cited by 6 publications

References 0 publications

Influence of starting voltage waveform on time sequence to restart DC transmission lines

Influence of starting voltage waveform on time sequence to restart DC transmission lines

Insulation recovery characteristics of 500 kV class dc insulator assemblies after arc extinction

Insulation recovery characteristics after fault arc interruption on UHV (1000 kV class) transmission lines

Contact Info

Product

Resources

About