Mechanism of saline deposition and surface flashover on high-voltage insulators near shoreline: mathematical models and experimental validations

Muhammad Majid Hussain*, Muhammad Akmal Chaudhary, Abdul Razaq

*Corresponding author for this work

Research output: Contribution to journalArticle

1 Citation (Scopus)
7 Downloads (Pure)

Abstract

This paper deals with sea salt transportation and deposition mechanisms and discusses the serious issue of degradation of outdoor insulators resulting from various environmental stresses and severe saline contaminant accumulation near the shoreline. The deterioration rate of outdoor insulators near the shoreline depends on the concentration of saline in the atmosphere, the influence of wind speed on the production of saline water droplets, moisture diffusion and saline penetration on the insulator surface. This paper consists of three parts: first a model of saline transportation and deposition, as well as saline penetration and moisture diffusion on outdoor insulators, is presented; second, dry-band initiation and formation modelling and characterization under various types of contamination distribution are proposed; finally, modelling of dry-band arcing validated by experimental investigation was carried out. The tests were performed on a rectangular surface of silicone rubber specimens (12 cm × 4 cm × 8 cm). The visualization of the dry-band formation and arcing was performed by an infrared camera. The experimental results show that the surface strength and arc length mainly depend upon the leakage distance and contamination distribution. Therefore, the model can be used to investigate insulator flashover near coastal areas and for mitigating saline flashover incidents.

Original languageEnglish
Article number3685
Number of pages20
JournalEnergies
Volume12
Issue number19
DOIs
Publication statusPublished - 26 Sep 2019

Fingerprint

Flashover
Model Validation
Insulator
Experimental Validation
Voltage
Mathematical Model
Mathematical models
Electric potential
Contamination
Moisture
Penetration
Saline water
Silicones
Deterioration
Rubber
Visualization
Cameras
Infrared Camera
Impurities
Arc length

Cite this

@article{13da2f6abbe841bc96e503f44e89db00,
title = "Mechanism of saline deposition and surface flashover on high-voltage insulators near shoreline: mathematical models and experimental validations",
abstract = "This paper deals with sea salt transportation and deposition mechanisms and discusses the serious issue of degradation of outdoor insulators resulting from various environmental stresses and severe saline contaminant accumulation near the shoreline. The deterioration rate of outdoor insulators near the shoreline depends on the concentration of saline in the atmosphere, the influence of wind speed on the production of saline water droplets, moisture diffusion and saline penetration on the insulator surface. This paper consists of three parts: first a model of saline transportation and deposition, as well as saline penetration and moisture diffusion on outdoor insulators, is presented; second, dry-band initiation and formation modelling and characterization under various types of contamination distribution are proposed; finally, modelling of dry-band arcing validated by experimental investigation was carried out. The tests were performed on a rectangular surface of silicone rubber specimens (12 cm × 4 cm × 8 cm). The visualization of the dry-band formation and arcing was performed by an infrared camera. The experimental results show that the surface strength and arc length mainly depend upon the leakage distance and contamination distribution. Therefore, the model can be used to investigate insulator flashover near coastal areas and for mitigating saline flashover incidents.",
author = "Hussain, {Muhammad Majid} and Chaudhary, {Muhammad Akmal} and Abdul Razaq",
year = "2019",
month = "9",
day = "26",
doi = "10.3390/en12193685",
language = "English",
volume = "12",
journal = "Energies",
issn = "1996-1073",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "19",

}

Mechanism of saline deposition and surface flashover on high-voltage insulators near shoreline : mathematical models and experimental validations. / Hussain, Muhammad Majid; Chaudhary, Muhammad Akmal; Razaq, Abdul.

In: Energies, Vol. 12, No. 19, 3685, 26.09.2019.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Mechanism of saline deposition and surface flashover on high-voltage insulators near shoreline

T2 - mathematical models and experimental validations

AU - Hussain, Muhammad Majid

AU - Chaudhary, Muhammad Akmal

AU - Razaq, Abdul

PY - 2019/9/26

Y1 - 2019/9/26

N2 - This paper deals with sea salt transportation and deposition mechanisms and discusses the serious issue of degradation of outdoor insulators resulting from various environmental stresses and severe saline contaminant accumulation near the shoreline. The deterioration rate of outdoor insulators near the shoreline depends on the concentration of saline in the atmosphere, the influence of wind speed on the production of saline water droplets, moisture diffusion and saline penetration on the insulator surface. This paper consists of three parts: first a model of saline transportation and deposition, as well as saline penetration and moisture diffusion on outdoor insulators, is presented; second, dry-band initiation and formation modelling and characterization under various types of contamination distribution are proposed; finally, modelling of dry-band arcing validated by experimental investigation was carried out. The tests were performed on a rectangular surface of silicone rubber specimens (12 cm × 4 cm × 8 cm). The visualization of the dry-band formation and arcing was performed by an infrared camera. The experimental results show that the surface strength and arc length mainly depend upon the leakage distance and contamination distribution. Therefore, the model can be used to investigate insulator flashover near coastal areas and for mitigating saline flashover incidents.

AB - This paper deals with sea salt transportation and deposition mechanisms and discusses the serious issue of degradation of outdoor insulators resulting from various environmental stresses and severe saline contaminant accumulation near the shoreline. The deterioration rate of outdoor insulators near the shoreline depends on the concentration of saline in the atmosphere, the influence of wind speed on the production of saline water droplets, moisture diffusion and saline penetration on the insulator surface. This paper consists of three parts: first a model of saline transportation and deposition, as well as saline penetration and moisture diffusion on outdoor insulators, is presented; second, dry-band initiation and formation modelling and characterization under various types of contamination distribution are proposed; finally, modelling of dry-band arcing validated by experimental investigation was carried out. The tests were performed on a rectangular surface of silicone rubber specimens (12 cm × 4 cm × 8 cm). The visualization of the dry-band formation and arcing was performed by an infrared camera. The experimental results show that the surface strength and arc length mainly depend upon the leakage distance and contamination distribution. Therefore, the model can be used to investigate insulator flashover near coastal areas and for mitigating saline flashover incidents.

U2 - 10.3390/en12193685

DO - 10.3390/en12193685

M3 - Article

AN - SCOPUS:85072725526

VL - 12

JO - Energies

JF - Energies

SN - 1996-1073

IS - 19

M1 - 3685

ER -