A novel intelligent protection system for power transformers considering possible electrical faults, inrush current, CT saturation and over-excitation

Yazdani-Asrami, Mohammad; Taghipour-Gorjikolaie, Mehran; Razavi, Seyyed Mohammad; Gholamian, S. Asghar

doi:10.1016/j.ijepes.2014.08.008

Cited by 49 publications

(15 citation statements)

References 29 publications

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“…(1) Simply reveal extreme details and hence rises convolution (2) No guarantee concerning the extracted details and relation with each essential section (3) Simply cause involvement with efficient movement. (4) efficient decomposition is producing disparagement on the procedure (5) cause problem in the gathering of definite training data in the actual field (6) trained staff required [31][32][33][34][35][36][37][38][39][40][41] 4…”

Section: External Fault Conditionsmentioning

confidence: 99%

Review of methodologies used for detection of magnetising inrush and fault conditions in power transformer

Raichura

Chothani

Patel³

2021

IET Energy Syst Integration

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Reliable and dedicated protection of the transformer is the main requirement in the power system due to the supervision of a highly expensive equipment transformer. Nonlinear characteristics of the transformer give mysterious behaviour for the period of inrush and Current transformer saturation conditions. As a stagnant and electro-magnetic device, a transformer is mainly affected by self-inrush. The saturation of the core itself is a very critical situation that becomes a hindrance for fault discrimination. This article involves the elaboration of the effect of inrush on transformer operation, past research practices for the discrimination of inrush with the faulty condition, and a definite method to recognise inrush and fault condition of the transformer. More than 50 reputed journal articles, various book chapters, and books with research thesis thoroughly studied to review the inrush and fault discrimination conditions. A comparative analysis is prepared to suggest the identification of transformer abnormalities. Moreover, a total harmonics distortion (THD)-based solution proposed for discrimination of the inrush condition from fault and other abnormal conditions using the short time Fourier transform technique. Hardware setup for 2 kVA transformer developed in the laboratory to study different inrush phenomena and altered fault conditions. Simulation and hardware results show various effects of inrush and fault with individual harmonic and THD-based analysis. The collection of real-time data is further used based on laboratory hardware setup to enhance real-time protection schemes for power transformers.This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Section: External Fault Conditionsmentioning

confidence: 99%

Review of methodologies used for detection of magnetising inrush and fault conditions in power transformer

Raichura

Chothani

Patel³

2021

IET Energy Syst Integration

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“…The term IPS is commonly used in technical fields such as electricity, meaning systems used to protect electrical networks and equipment in specific areas such as power systems (Islam and Gabbar, 2012; Li et al , 2013; Yazdani-Asrami et al , 2015). IPSs are also proposed to protect water from radioactive pollution (Li et al , 2011), cars from accidents (Ezell et al , 2013; Deng and Jian, 2014), software privacy (Tan et al , 2015) and other technical equipment such as conveyor belt and operations that are personnel based from accidents and attacks (Xu et al , 2012; Yu and He, 2015).…”

Section: Literature Reviewmentioning

confidence: 99%

The potential of IoT in redesigning the bank branch protection system

Ammirato¹,

Sofo

Felicetti

et al. 2019

BPMJ

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Purpose Most recent developments in the Internet of Things (IoT) technologies can boost the efficacy of business process management (BPM) to improve process performance. The purpose of this paper is to describe a method for redesigning bank branch (BB) protection systems contributing to make BBs “smarter.” Design/methodology/approach Based upon a multiple case study approach, the paper deployed a four-step business process reengineering design from an information system development perspective. To overcome limitations of information scarcity required for modeling activities, a multimethod approach to data gathering and results validation was adopted. The approach was based on a comprehensive literature review and an in-depth qualitative survey involving a sample of six security managers of primary Italian banking groups. Findings The intelligent protection system resulting from the application of the methodology to the Italian BB sector was able to improve the security management process. Lead time and actors’ workload were reduced; running costs decreased; quality of information improved as well as the overall effectiveness of the protection system against criminal attacks. Originality/value The specific IoT technologies proposed are new. Additionally, to date, their application to BB security management has not been analyzed in the BPM literature. The value resides in the highly applicable results of the methodology to the BB network of a banking group both inside and outside of Italy.

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“…The connector for medium voltage in the distribution substation is different following the construction. A transformer is an electrical device that could transport and convert electrical energy from one or more circuit to other circuits through magnetic tow and based on the electromagnet induction principle [14]- [17]. Distribution transformer functions as a converter from medium voltage electrical energy into low voltage before channeled to the consumers.…”

Section: Main Theory or Related Current Researchmentioning

confidence: 99%

Load Impact Analysis Towards Power Loss in Distribution Substation in Wlingi District

Setyawan

Rahmawati

2019

FESPE

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This research aimed to find: (1) the distribution substations configuration in Kesamben Feeder, Wlingi District, (2) how much was the loading in those distribution substations, (3) how much load imbalance in the distribution substation’s load, and (4) how much was the power loss towards the imbalance load. This research used descriptive analysis by analyzing the loading imbalance towards the power loss of distribution substation in one feeder. The results showed that the higher percentage of loading imbalance meant higher power loss. However, although an imbalance percentage was more significant than a smaller percentage, the power loss that occurred might be more substantial due to the probable higher loading percentage so that the power loss in the substation was also influenced by the loading value, apart from the load imbalance.

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A novel intelligent protection system for power transformers considering possible electrical faults, inrush current, CT saturation and over-excitation

Cited by 49 publications

References 29 publications

Review of methodologies used for detection of magnetising inrush and fault conditions in power transformer

Review of methodologies used for detection of magnetising inrush and fault conditions in power transformer

The potential of IoT in redesigning the bank branch protection system

Load Impact Analysis Towards Power Loss in Distribution Substation in Wlingi District

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