On Approaching Relevant Cost-Effective Sustainable Maintenance of Mineral Oil-Filled Electrical Transformers

Ramsey Jadim, Mirka Kans, Jesko Schulte, Mohammed Alhattab, May Alhendi and Ali Bushehry
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Ramsey Jadim: Department of Mechanical Engineering, Faculty of Technology, Linnaeus University, 351 95 Växjö, Sweden
Mirka Kans: Department of Mechanical Engineering, Faculty of Technology, Linnaeus University, 351 95 Växjö, Sweden
Jesko Schulte: Department of Strategic Sustainable Development, Blekinge Institute of Technology, 371 79 Karlskrona, Sweden
Mohammed Alhattab: Primary Substation Maintenance Department, Ministry of Electricity and Water, Safat 13001, Kuwait
May Alhendi: Primary Substation Maintenance Department, Ministry of Electricity and Water, Safat 13001, Kuwait
Ali Bushehry: Primary Substation Maintenance Department, Ministry of Electricity and Water, Safat 13001, Kuwait

Energies, 2021, vol. 14, issue 12, 1-17

Abstract: Fire and explosion accidents of oil-filled electrical transformers are leading to negative impacts, not only on the delivery of energy, but also on workplace health and safety as well as the surrounding environment. Such accidents are still being reported, regardless of applying the regular maintenance strategy in the power plants. The purpose of this paper is to integrate a sustainability perspective into the maintenance strategy. The problem addressed is: how can we approach the relevant cost-effective sustainable maintenance for oil-filled electrical transformers? For this purpose, an empirical study in a power plant in Kuwait was introduced. The first stage was to carry out a sustainability assessment using the ABCD procedure. In this procedure, gaps to approach sustainability were identified and actions prioritized to close these gaps were demonstrated. Applying this procedure yielded an early fault diagnosis (EFD) model for achieving cost-effective sustainable maintenance using a fault trend chart based on a novel numerical method. Implementing this model resulted in an extension of the lifetime of transformers with suspected failure propagation, leading to a deferral of the replacement investment costs. The principal conclusion of this paper is the importance of viewing the maintenance strategy of transformers from a strategic sustainability perspective, in order to approach relevant cost-effective sustainable maintenance.

Keywords: maintenance strategy; sustainable maintenance; ABCD procedure; strategic sustainable development; transformer failures (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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