DocumentCode :
779893
Title :
Development and application of a multi channel current integrator-cum-peak classifier for online monitoring of leakage current on RTV coated insulators
Author :
Devendranath, D. ; Girija, G. ; Aradhya, R. S Shivakumara ; Gunasekaran, B. ; Bhaskaran, A.
Author_Institution :
UHV Res. Lab., Central Power Res. Inst., Hyderabad, India
Volume :
152
Issue :
2
fYear :
2005
fDate :
3/4/2005 12:00:00 AM
Firstpage :
247
Lastpage :
252
Abstract :
Room temperature vulcanising (RTV) silicone rubber coated porcelain insulators and nonceramic insulators have a good anti-pollution performance in the field due to their excellent leakage current suppression capability. However, because of ageing, the material characteristics deteriorate and thus lose the property of hydrophobicity of the coating material. Diagnostically, leakage current monitoring is an indicator, amongst others, for assessing the life of the coating and thus continuous monitoring of the leakage current for longer periods is called for, warranting the necessity for an online personal computer (PC)-based data acquisition system. The PC-based data acquisition system is called a multi-channel current integrator-cum-peak classifier (MCIC). This paper discusses the complete development of the MCIC system, in terms of hardware and software, and its successful application for conducting artificial ageing tests on RTV coated porcelain insulator samples, in the pollution ageing chamber.
Keywords :
ageing; computerised monitoring; insulating coatings; leakage currents; materials testing; vulcanisation; RTV; artificial ageing tests; data acquisition system; hydrophobicity properties; leakage current; multi channel current integrator; nonceramic insulators; online monitoring; peak classifier; room temperature vulcanising; silicone rubber coated porcelain insulators;
fLanguage :
English
Journal_Title :
Generation, Transmission and Distribution, IEE Proceedings-
Publisher :
iet
ISSN :
1350-2360
Type :
jour
DOI :
10.1049/ip-gtd:20040735
Filename :
1421144
Link To Document :
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