NDLI: The structure of additives and their relation to streaming current

Content Provider	IEEE Xplore Digital Library
Author	Watanabe, S. Kawaguchi, S. Fujil, M. Tanabe, K. Ohashi, A.
Copyright Year	1988
Description	Author affiliation: Aichi Institute of Technology (Watanabe, S.)
Abstract	When a liquid with good insulating properties is set in flow electrification will occur. The charge produced may cause various static electricity problems for the chemical industry or destroy the insulating systems of the very-high-voltage transformers used in electrical engineering. Measures taken to prevent this kind of mishap include reduction in liquid flow velocity, the use of liquids with low electrification properties and the introduction of anti-electrification additives. In very-high-voltage transformers, a reduction in the oil flow velocity leads to a lowering of the cooling efficiency, so that the transformer has to be made very large. The use of low electrification oils. on the other hand, adds to the cost of operation. In such cases, the most effective and economical means of preventing electrification would seem to be the use of additives. However, bearing in mind the need to prevent pollution and to ensure that no deterioration occurs in the anti-electrification system with age. we find that a number of unresolved problems still remain. The authors have been engaged in experiments to find interface activating substances that are inexpensive, safe and highly effective in reducing electrification. Their results have led them to conclude that the use of nonionic agents is more effective in all kinds of circumstances than the use of ionic agents. They have conducted further experiments using interface activation additives of differing molecular structures in order to determine which structure works most effectively against electrification. The present experiment concerns only two types of additives. those with an alkyl base and those with a phenol base. It was found that the phenol based additives are more ef fective in reducing electrification.
Starting Page	319
Ending Page	322
File Size	230494
Page Count	4
File Format	PDF
ISBN	4886860419
DOI	10.1109/ISEIM.1988.763503
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1988-09-26
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Additives Petroleum Chromium Conductivity Electric potential Chemical technology Dielectric liquids Power transformer insulation Fluid flow measurement Pollution measurement
Content Type	Text
Resource Type	Article

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