Power transformer risk management: Predictive methodology based on reliability centered maintenance

Freitag, Suelen C.; Sperandio, Maurício; Marchesan, Tiago Bandeira; Carraro, Rodinei

doi:10.1109/sbse.2018.8395532

Cited by 5 publications

(6 citation statements)

References 12 publications

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“…Unlike in the case of the method introduced in Section 2.1, this weight is determined on the basis of a combination of the results of both transformer failure statistics and the experience of human experts [32,33]. Figure 4 A typical way of realizing the Type-II health index is shown in Figure 5a, and this has been adopted by several utilities [32,[34][35][36]. For such a health index, the score of each component is taken as a sub-index.…”

Section: Type-ii Health Indexmentioning

confidence: 99%

Review of Transformer Health Index from the Perspective of Survivability and Condition Assessment

Cui

et al. 2023

Electronics

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As a critical indicator for assessing the survivability and condition of transformers in a fleet, the transformer health index has attracted attention from both asset owners and international organizations like CIGRE and IEEE DEIS/PES. To provide a systematic and comprehensive review for further study or to guide transformer asset management, this paper summarizes the state-of-the-art of the transformer health index, from the early proposed weighted-score-sum approaches to the more recently proposed artificial intelligence algorithm-based methods. Firstly, different methods for determining the transformer health index are reviewed. Each of these is specified as belonging to a certain type on the basis of its formulation and composition schematic. Subsequently, the steps to determine each type of health index are summarized, and examples derived from literature are provided for further illustration. Comparisons are finally carried out in order to better understand the pros and cons of different types of transformer health index, and the future development trends for transformer health indexes are also discussed. This work can serve as a valuable reference for the survivability and condition assessment of transformers in the power industry.

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Section: Type-ii Health Indexmentioning

confidence: 99%

Review of Transformer Health Index from the Perspective of Survivability and Condition Assessment

Cui

et al. 2023

Electronics

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“…O objetivo do método é garantir que o componente, conjunto ou sistema permaneça sempre em condições de desempenhar suas funções requeridas em um contexto operacional definido. As atividades de manutenção são otimizadas através de análises de consequências das falhas funcionais sob a ótica de segurança, meio ambiente, qualidade e custos (Freitag et al 2018).…”

Section: Manutenção Centrada Em Confiabilidadeunclassified

Benefícios da Manutenção Centrada em Confiabilidade Aplicada ao Sistema de Acionamento de um Moinho SAG

Oliveira

Carvalho

Bezerra

2020

Anais Do Simpósio Brasileiro De Sistemas Elétricos 2020

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Este artigo tem como objetivo apresentar os benefícios da metodologia de manutenção centrada em confiabilidade para determinação de tarefas otimizadas de manutenção aplicadas a um item do acionamento elétrico de um moinho SAG de uma indústria mineradora. Será apresentada a importância da manutenção para os equipamentos e quanto a utilização de técnicas modernas auxilia as grandes corporações a atingir maior lucratividade e competitividade no mercado atual.

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“…One of the priorities for utilities is to provide uninterrupted power supply to end users. The reliability of the electric power asset mainly depends on adequate maintenance and diagnostics [1][2][3][4]. Power transformers are no doubt one of the key elements of the entire power system, so their technical condition, especially faults, may directly affect the reliability of the system.…”

Section: Introductionmentioning

confidence: 99%

Exploitation Perspective Index as a Support of the Management of the Transformer Fleet

Kunicki,

Borucki,

Fulneček

2023

Sensors

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This paper presents an alternative approach to the Transformer Assessment Index (TAI) by proposing a relatively simple rating method called the Exploitation Perspective Index (EPI). The method provides two numerical indicators: the first reflects the overall technical condition of the particular unit, and the second shows the condition of the unit in the context of the entire fleet. The objective of the EPI method is to support the decision-making process regarding the technical condition assessment of each of the transformers in the target population, considering not only technical but also economic aspects of transformer maintenance. Application of the method is described step by step, including input data, parametrization of the weights, and interpretation of the output results it provides. The proposed method is evaluated by two representative use cases and compared with two other methods. As a result, EPI confirms its applicability, and it has already been successfully implemented by the electric power industry. EPI can be potentially freely adopted for any transformer fleet, as well as for the specific situation of the utility, by adjusting the relevant parameters.

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Power transformer risk management: Predictive methodology based on reliability centered maintenance

Cited by 5 publications

References 12 publications

Review of Transformer Health Index from the Perspective of Survivability and Condition Assessment

Review of Transformer Health Index from the Perspective of Survivability and Condition Assessment

Benefícios da Manutenção Centrada em Confiabilidade Aplicada ao Sistema de Acionamento de um Moinho SAG

Exploitation Perspective Index as a Support of the Management of the Transformer Fleet

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