Onsite MOSA condition Assessment-a new approach

A new method to assess the condition of metal-oxide surge arresters is presented. The fundamental component of the resistive current is used as an indicator. This current is obtained by exploiting the linear relationship, which exists between the peak value of the fundamental component of the resist...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on power delivery 2006-07, Vol.21 (3), p.1273-1277
Main Authors: Karawita, C., Raghuveer, M.R.
Format: Article
Language:English
Subjects:
Aging
Applied sciences
Arresters
Connection and protection apparatus
Current measurement
Diagnostic indicator
Electrical engineering. Electrical power engineering
Electromagnetic measurements
Exact sciences and technology
Indicators
Metal oxides
metal-oxide surge arrester (MOSA)
Onsite
Partial discharges
Phase shift
Power system protection
Power system reliability
Probes
resistive current
Surge arresters
Surge protection
Voltage
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A new method to assess the condition of metal-oxide surge arresters is presented. The fundamental component of the resistive current is used as an indicator. This current is obtained by exploiting the linear relationship, which exists between the peak value of the fundamental component of the resistive current and the phase shift between the fundamental components of the capacitive current and the total arrester current. This relationship is independent of temperature for a given type of arrester. Results are presented to demonstrate the accuracy and the reliability of the new technique.
ISSN:0885-8977
1937-4208
DOI:10.1109/TPWRD.2005.860264