Title :
Practical PC-DA system for measurements of leakage current pulses on polymer insulators under wet contaminated conditions
Author :
Orbeck, T. ; Kawa, D.F. ; Chavez, M.J. ; Lumb, C.
Author_Institution :
Dow Corning Corp., Midland, MI, USA
Abstract :
A practical data acquisition system using standard personal computer equipment of reasonable cost has been designed and evaluated for leakage current measurement on insulators subjected to outdoor pollution or indoor contamination tests. This system makes it possible to measure and record leakage currents and discharge pulses automatically over long periods. A standard PC with a standard analog-to-digital converter plug-in board is used in the system. The software is designed to sample eight channels (insulators) of up to 1000 Hz each. Test results from studies of insulators in a fog-chamber environment and in outdoor polluted conditions are reported. It is concluded that the use of this measuring technique permits a better understanding of insulator design and materials under service conditions in polluted areas and will allow correlation between field experience and laboratory tests to be established
Keywords :
air pollution; computerised instrumentation; data acquisition; electric current measurement; insulation testing; insulators; organic insulating materials; polymers; analog-to-digital converter plug-in board; data acquisition system; discharge pulses; field experience; fog-chamber environment; indoor contamination tests; laboratory tests; leakage current pulses; outdoor pollution; personal computer equipment; polymer insulators; wet contaminated conditions; Costs; Current measurement; Data acquisition; Insulation; Insulator testing; Leakage current; Measurement standards; Microcomputers; Pollution measurement; Pulse measurements;
Conference_Titel :
Electrical Insulation, 1990., Conference Record of the 1990 IEEE International Symposium on
Conference_Location :
Toronto, Ont.
DOI :
10.1109/ELINSL.1990.109786
