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Corrosion protection of core steel in dry-type transformers - Anticorrosion coating: some dos and don’ts

Aiman Sakr ; ABB

Puni tekst: engleski pdf 577 Kb

str. 120-125

preuzimanja: 1.112



This article demonstrates how corrosion of core steel starts, presents its negative effect on transformer's efficiency, talks about the types of coating used on core steel material as well as the methods used in applying those layers of coating. It also provides a collection of data and best practices useful to identify the proper method for anticorrosion painting of the stacked iron core in dry type distribution transformers including the difficulties that may be encountered during this operation and the measures to be taken to eliminate the mentioned difficulties. In addition, this paper also presents the quality control checkpoints for final verification operation that is so simple, yet so important in preserving a fundamental part of the transformer which helps increasing its life time and decreasing the need for future maintenance.

Ključne riječi

core, dry-type transformers, process, assembly

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