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eng Future of substation monitoring: It is not just the software
Sparling, Brian D.
Transformers Magazine Vol. 5, No. 2, 2018
The future of online monitoring of HV substation equipment is closely linked to Enterprise Asset Management systems provided that proper measures are implemented for the EAM system to deliver the expected results. Those measures include trained personnel, detailed knowledge of one’s assets, technically and economically feasible maintenance process, flow of information to personnel, and collaboration with a company that can provide the monitoring system as well as the expertise in its implementation. Monitoring and diagnostics is now part of the...
Hrčak ID: 202537

eng Transformer lifecycle: Power transformer asset management
Wetzer, Jos
Transformers Magazine Vol. 5, No. 3, 2018
In 2014, the ISO 55000 standard on asset management was issued, providing an internationally recognized framework for asset management that utilities can adopt to enhance the asset performance while controlling the risks at acceptable costs. This standard is, deliberately, made applicable to different kinds of organizations and assets, hence it does not elaborate on the management of specific assets in specific organizations. As a result, it is the utility’s responsibility to translate this framework into technical asset management processes al...
Hrčak ID: 207406

eng Transformer management system - TrafoGrade
Szrot, Marek; Płowucha, Janusz; Molenda, Paweł
Transformers Magazine Vol. 8, No. 2, 2021
This paper presents the TrafoGrade system, developed by Energo-Complex Ltd. The main purpose of this tool is to aid a decision-making process regarding the operation of power transformers. The system consists of four modules, the most important being a multi-parameter evaluation of the technical condition of a transformer. The second is an assessment of importance of the unit, which concerns things such as energy security, technical possibilities of a transformer renovation or replacement, as well as reliability of the power supply and costs of...
Hrčak ID: 256533

eng Transformer health and risk indexing: Transforming asset data into decision-support information
Wetzer, Jos
Transformers Magazine Vol. 5, No. 2, 2018
Modern asset management systems make use of risk based decision methodologies. This means that not only the frequency or the consequence of an event is regarded, but also the product of both. In order to transform operational and maintenance data into decision information that supports the asset manager in taking well-substantiated decisions, use is made of health and risk indexing methods. A health index is used to represent the condition or health of an asset; a risk index is used to represent the associated risk of a failing or defective ass...
Hrčak ID: 202538

eng Evidence-based asset management
Sparling, Brian
Transformers Magazine Vol. 6, No. 4, 2019
Assets managers in any utility face similar challenges when trying to meet their respective companies’ obligations to stakeholders affected by these assets. An evidence-based practice is any practice that relies on scientific evidence for guidance and decision-making and applying principles of this practice to asset management decisions generates millions in savings for companies.
Hrčak ID: 226062

eng Advanced analytics for transformer asset management
Das, Bhaba
Transformers Magazine Vol. 7, No. 3, 2020
Power transformers are one of the most crucial components of any power system network. A new asset management software called APM Edge, based on the reliability centred maintenance (RCM) methodology for the fleet-wide assessment of power transformers that utilises the principle of fault tree analysis is now available. This analytical software is an expert system that incorporates a probabilistic model which always assigns a risk factor to any given transformer – both for longterm reliability and short-term functionality. This paper presents a...
Hrčak ID: 242418

eng Investigating cost-benefit analysis for digital distribution transformers – Part I
Das, Bhaba Priyo
Transformers Magazine Vol. 8, No. 3, 2021
Monitoring for distribution transformers is still not widely accepted, the common notion being that these transformers can be easily stocked and replaced upon failure. Although data-driven transformer asset management advantages are recognized, many end users are reluctant to adopt, simply because of the extra upfront price. This article brings many case studies that show that digitalization is cost-effective and lead to savings. Sustainability is also addressed in part II of the article since the digitalized transformers can be utilized in a...
Hrčak ID: 261402

eng Power Transformer Life
Gamez, Carlos
Transformers Magazine Vol. 1, No. 1, 2014
The concept of life for an electrical asset, such as a power transformer, is sometimes not properly understood. In this article, the frst from the series of three articles, we review what we mean when we refer to the “life” of a transformer and what constrains determine the design and operational parameters of these assets.
Hrčak ID: 186876

Preprotić, Branimir; Rakić, Hrvoje; Mitrović, Darko
Polytechnic and design Vol. 10, No. 3, 2022
Svrha rada je pokušati dobiti odgovor na pitanje može li Gospodarenje imovinom imati primjenu u svakodnevnom životu. Kako bi to ispitali provedeno je istraživanje. U istraživanju su ispitanicima korištenjem studija slučaja simulirane situacije u kojima moraju donositi odluke. Istraživanje je provedeno u tri grupe od 114 ispitanika. Svaka od tri grupe dobila je različite studije slučaja, a svima je zajedničko da donose odluku o rješavanjima identičnih problema na imovini koja je također jednaka u sve tri grupe. Analiza rezultata pokazala je veli...
Hrčak ID: 285786

eng Trends in continuous on-line condition monitoring
Coenen, Sebastian
Transformers Magazine Vol. 2, No. 3, 2015
The article describes new trends in the field of continuous on-line condition monitoring of transformers. These trends are related to the following topics: the monitoring system itself and new requirements for, for instance, HVDC and offshore transformers; growing importance of the implementation of continuous on-line monitoring of bushings, dissolved gases and new ultra-high frequency technology for partial discharge monitoring; and finally, the new trend of using IEC 61850 [1] data model and communication protocol in digital substations.
Hrčak ID: 182742