Mapping relation of leakage currents of polluted insulators and discharge arc area

C Fang, Y Tao, J Wang, C Ding, L Huang… - Frontiers in Energy …, 2021 - frontiersin.org
A fundamental parameter of polluted insulator online monitoring is the leakage current,
which has already been shown to be well-related to the pollution discharge of insulators. In …

A review on characteristics and assessment techniques of high voltage silicone rubber insulator

K Sit, AK Pradhan, B Chatterjee… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
The usage of polymeric insulators in transmission and distribution overhead lines for the last
few decades has increased extensively. Silicone rubber (SiR) material is used enormously …

Measurement variations of insulation resistance/polarization index during utilizing time in HV electrical machines–A survey

H Torkaman, F Karimi - Measurement, 2015 - Elsevier
The concept of insulation system is chiefly concerned with the stator winding lifetime of the
high voltage (HV) electrical machines. Along with the insulation testing, insulation resistance …

Research on leakage current waveform spectrum characteristics of artificial pollution porcelain insulator

C Fang, Y Tao, J Wang, H You, Y Cui… - Frontiers in Energy …, 2021 - frontiersin.org
The surface discharge development processes of polluted porcelain insulators for power
transmission lines are tightly related with the development of leakage current (LC), the …

Leakage current analysis of polymeric insulators under uniform and non‐uniform pollution conditions

I Ahmadi‐Joneidi… - IET Generation …, 2017 - Wiley Online Library
This study presents two different methods under uniform and non‐uniform pollution layer in
order to measure and calculate the leakage current (LC) of silicone rubber insulators …

Performance of outdoor insulators in tropical conditions of Sri Lanka

S Kumara, M Fernando - IEEE Electrical Insulation Magazine, 2020 - ieeexplore.ieee.org
Ceramic insulators, specifically porcelain and glass insulators, have widely been used all
over the world since the 19th century [1, 2]. However, when such insulators are energized …

A new current transducer for on-line monitoring of leakage current on HV insulator strings

RJ Villalobos, LA Moran, F Huenupán, F Vallejos… - IEEE …, 2022 - ieeexplore.ieee.org
Leakage current measurement and its harmonics have been widely used for the pollution
level estimation of HV insulator strings. However, the solutions available to applications into …

Estimation of the Pollution Critical Level on the Surface of Glass Insulators Based on Leakage Current

VRN Barbosa, GRS Lira, EG Costa… - … on Power Delivery, 2024 - ieeexplore.ieee.org
Electrical insulators are components used to promote electrical isolation and mechanical
support for conductors in transmission lines belonging to the electric power systems (EPS) …

Time–frequency analyses of leakage current waveforms of high voltage insulators in uniform and non‐uniform polluted conditions

N Dhahbi‐Megriche, A Beroual - IET Science, Measurement & …, 2015 - Wiley Online Library
This study deals with the analysis of the leakage current (LC) in both time and frequency
domains, for different configurations of polluted high voltage insulators (ie for clean and …

Feature extraction and classification of surface discharges on an ice-covered insulator string during AC flashover using gray-level co-occurrence matrix

Y Liu, Q Li, B Du, M Farzaneh - Scientific Reports, 2021 - nature.com
This study focuses on the feature extraction and classification of surface discharges of ice-
covered insulator strings during process of alternating current flashover. The test specimen …