2014
DOI: 10.1109/tdei.2014.004598
|View full text |Cite
|
Sign up to set email alerts
|

Insulator flashover under icing conditions

Abstract: Atmospheric ice accretion, combined with pollution, has been recognized as a significant risk factor in the reliability of line and station insulators in cold climate regions. Flashovers occurring on ice-and snow-covered insulators result from combinations of a number of factors and parameters. Electric fields modify the structure of ice, the shape and direction of icicle elongation, the distribution of liquid water and the geometry of air gaps that break up the continuous ice surface. Electric field strength … Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1
1

Citation Types

1
31
0

Year Published

2015
2015
2023
2023

Publication Types

Select...
7

Relationship

0
7

Authors

Journals

citations
Cited by 66 publications
(32 citation statements)
references
References 53 publications
(77 reference statements)
1
31
0
Order By: Relevance
“…The former means that the conductive particles are evenly scattered on the specimen surface between the electrodes; the latter means that a rectangular area of iron powder close to the HV electrode are Energies 2016, 9, 87 3 of 13 formed, with a width of 2.5 mm and a height of 20 mm. That is to say, the particle density in Figure 2a is 0.2, 0.4, 0.6, 0.8 and 1.0 g/mm 2 , and in Figure 2b it is 0.017, 0.033, 0.05, 0.067 and 0.083 g/mm 2 .…”
Section: Methodsmentioning
confidence: 81%
See 2 more Smart Citations
“…The former means that the conductive particles are evenly scattered on the specimen surface between the electrodes; the latter means that a rectangular area of iron powder close to the HV electrode are Energies 2016, 9, 87 3 of 13 formed, with a width of 2.5 mm and a height of 20 mm. That is to say, the particle density in Figure 2a is 0.2, 0.4, 0.6, 0.8 and 1.0 g/mm 2 , and in Figure 2b it is 0.017, 0.033, 0.05, 0.067 and 0.083 g/mm 2 .…”
Section: Methodsmentioning
confidence: 81%
“…As concerns the particle parameters of size, amount and distribution, the major results can be summarized as follows: (1) Fine metal particles on the insulator surface under AC voltage conditions show simultaneous behaviors of erratic horizontal movement and vertical lift-off, which cause distortion and intensification of electric stresses inducing surface discharges under a rather low voltage. (2) Flashover voltage shows a decreasing tendency as particle size is reduced and particle amount is increased. An especially significant change occurs when the particle size is smaller than 28 µm, associated with a uniform distribution.…”
Section: Discussionmentioning
confidence: 96%
See 1 more Smart Citation
“…It can also be affected by multiple factors including temperature, humidity, wind velocity, rain and fog, property and quantity of pollution sources, insulator configuration (represented by equivalent salt deposit density (ESDD)), leakage current, and surface pollution layer capacity (SPLC) [5][6][7]. In recent years, there have been many methods to assess the contamination of insulators based on artificial neural networks (ANN) [5], multi model partitioning filter (MMPF) [6], etc.…”
Section: Introductionmentioning
confidence: 99%
“…In recent years, there have been many methods to assess the contamination of insulators based on artificial neural networks (ANN) [5], multi model partitioning filter (MMPF) [6], etc. Also, insulator icing flashover is affected by meteorological conditions, including ice type and structure [7]. However, there are no appropriate methods to denote and assess icing conditions between insulator sheds.…”
Section: Introductionmentioning
confidence: 99%