Verification of the magnetic method in testing of the modified composite core of overhead conductors

• Autorzy: Szot, Mariusz , Szade, Piotr
• Języki publikacji: EN

Abstrakty

EN

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 bending. 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 model swith cores containing epoxy resin with an addition of a ferromagnetic 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.

Słowa kluczowe

PL

przewodniki elektryczne; badania magnetyczne; przesył mocy

EN

composite core conductor; magnetic testing; power transmission

• Czasopismo: Journal of Power Technologies
• Rocznik: 2020
• Tom: Vol. 100, nr 2
• Strony: 138--143
• Opis fizyczny: Bibliogr. 8 poz., fot., tab., wykr.

Twórcy

autor

Szot, Mariusz

• Central Mining Institute, Plac Gwarków 1, 40-166 Katowice, Poland,

autor

Szade, Piotr

• Central Mining Institute, Plac Gwarków 1, 40-166 Katowice, Poland,

Bibliografia

• 1. Alawar, A., Bosze, E. J., and Nutt, S. R. (2005) A Composite Core Conductor for Low Sag at High Temperatures. IEEE Transactions on Power Delivery, 20 (3), 2193-2199.
• 2. Berjozkina, S., Technical, R., Rtu, A. S., and Rtu, E. V. (2012) Evaluation of the Profitability of High Temperature Low Sag Conductors. Riga Technical University 53rd International Scientific Conference, 31 (1), 18-24.
• 3. Szkutnik, J., and Baum, K. (2011) Techniczno-ekonomiczne aspekty rekonstrukcji sieci w oparciuo przewody wysoko temperaturowe. Przegląd Elektrotechniczny, R. 87, nr 10, 267-271.
• 4. Burks, B. M., Armentrout, D. L., Baldwin, M., Buckley, J., and Kumosa, M. (2009) Hybrid composite rods subjected to excessive bending loads. Composites Science and Technology, 69 (15-16), 2625-2632.
• 5. Burks, B., Armentrout, D., and Kumosa, M. (2010) Failure prediction analysis of an ACCC conductor subjected to thermal and mechanical stresses. IEEE Transactions on Dielectrics and Electrical Insulation, 17 (2), 588-596.
• 6. Burks, B., Middleton, J., Armentrout, D., and Kumosa, M. (2010) Effect of excessive bending on residual tensile strength of hybrid composite rods. Composites Science and Technology, 70 (10), 1490-1496.
• 7. Hansel, J. (2012) The Polish methodology of magnetic testing of wire ropes. Journal of Machine Construction and Maintenance, nr 3, 91-107.
• 8. Hankus, J. (2002) Integrated testing and assessment methods of the safety state of steel ropes. Prace Naukowe GIG. Górnictwo i Środowisko/ Główny Instytut Górnictwa, nr 4, 43-58.

Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).