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- Title
Verification of the magnetic method in testing of the modified composite core of overhead conductors.
- Authors
Szot, Mariusz; Szade, Piotr
- Abstract
ACCC/TW conductors deliver excellent electricity transmission results, boosting overall power system efficiency and capacity. Detracting from their many advantages is the propensity of their composite cores to suffer cracking under excessive bend- ing. This article presents a concept for modifying construction and a testing method to determine the technical state of the conductor core after installation in its place of operation. The technique uses an existing method for magnetic testing of steel cables. Tests were conducted on a series of conductor models with cores containing epoxy resin with an addition of a ferro- magnetic FeSi 15 powder. The measurements showed the tests were able to detect small crosswise gaps and cracking simulated in the core. The accuracy of the method is determined by the concentration of a magnetic component in the core.
- Subjects
AUSTRALIAN Competition &; Consumer Commission; MAGNETIC testing; TEST methods; ELECTRIC power transmission; ELECTRIC conduits; ELECTRICAL conductors; MAGNETIC cores; TEST design; IRON powder
- Publication
Journal of Power Technologies, 2020, Vol 100, Issue 2, p138
- ISSN
2083-4187
- Publication type
Article