Analysis of Power Outages and Human errors in the Operation of Equipment in Power Grids

Ivanova, Milena; Dimitrova, Rositsa; Filipov, Anton

doi:10.1109/bulef51036.2020.9326058

Cited by 13 publications

(7 citation statements)

References 4 publications

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“…outages because the functions of some grid components are compromised as they age and become absolute (Chakravorti, 2006;Hatziargyriou et al, 2005;Okoye and Omolola, 2019;Vaiman et al, 2012). Other technical factors that have been pointed out by scholars as influencers of grid reliability include the collapse of the grid components (Pepyne, 2007), component and line failures (Abdelghany and Tahar, 2021;Scherb et al, 2019) and vulnerable and broken line segments (Ivanova et al, 2020;Scherb et al, 2019). We state the hypothesis that; H2.…”

Section: Effects Of Technical and Security Factorsmentioning

confidence: 89%

“…They do not look at the technical related factors which too affect power grid reliability. Elsewhere, Ivanova et al (2020) studied technical factors that influence grid electricity reliability in the transmission and distribution subsystems but used descriptive analysis and qualitative discussion methodology approach. Overholt (2001) looked at the technical factors that affect grid reliability but had a qualitative approach to the study.…”

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confidence: 99%

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Effects of technical and security factors on grid electricity reliability: evidence from Uganda national electricity grid network

Migisha,

Ntayi,

Adaramola

et al. 2023

TECHS

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PurposeAn unreliable supply of grid electricity has a strong negative impact on industrial and commercial profitability as well as on household activities and government services that rely on electricity supply. This unreliable grid electricity could be a result of technical and security factors affecting the grid network. Therefore, this study aims to investigate the effects of technical and security factors on the transmission and distribution of grid electricity in Uganda.Design/methodology/approachThis study used the ordinary least squares (OLS) and autoregressive distributed lag (ARDL) models to examine the effects of technical and security factors on grid electricity reliability in Uganda. The study draws upon secondary time series monthly data sourced from the Uganda Electricity Transmission Company Limited (UETCL) government utility, which transmits electricity to both distributors and grid users. Additionally, data from Umeme Limited, the largest power distribution utility in Uganda, were incorporated into the analysis.FindingsThe findings revealed that technical faults, failed grid equipment, system overload and theft and vandalism affected grid electricity reliability in the transmission and distribution subsystems of the Ugandan power grid network. The effect was computed both in terms of frequency and duration of power outages. For instance, the number of power outages was 116 and 2,307 for transmission and distribution subsystems, respectively. In terms of duration, the power outages reported on average were 1,248 h and 5,826 h, respectively, for transmission and distribution subsystems.Originality/valueThis paper investigates the effects of technical and security factors on the transmission and distribution grid electricity reliability, specifically focusing on frequency and duration of power outages, in the Ugandan context. It combines both OLS and ARDL models for analysis and adopts the systems reliability theory in the area of grid electricity reliability research.

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Section: Effects Of Technical and Security Factorsmentioning

confidence: 89%

mentioning

confidence: 99%

Effects of technical and security factors on grid electricity reliability: evidence from Uganda national electricity grid network

Migisha,

Ntayi,

Adaramola

et al. 2023

TECHS

View full text Add to dashboard Cite

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“…Gangguan pasokan listrik dapat menyebabkan kerugian ekonomi yang besar untuk bisnis dan sektor lainnya seperti kesehatan serta termasuk juga kegagalan sistem pembayaran dan gangguan produksi untuk industri manufaktur [11]. Memastikan arus listrik bekerja tanpa gangguan sangat penting untuk perekonomian, dan terutama untuk konsumen kategori pertama seperti pangkalan militer, puskesmas, rumah sakit dan lainlain yang menjadi prioritas utama [12].…”

Section: Power Monitoring Pada Rumah Sakitunclassified

Perencanaan Penggunaan Wireless kWh Meter Untuk Monitoring Pemakaian Daya Listrik dan Instalasi Kabel Listrik di Rumah Sakit

Mardiansyah

2022

tech

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Listrik menjadi salah satu energi vital dalam sistem pelayanan di rumah sakit. Pemadaman listrik secara tiba-tiba di rumah sakit akan mengakibatkan kerugian dari segi finansial, pelayanan, bahkan keselamatan. Pemadaman listrik di rumah sakit akan menimbulkan kerugian pendapatan dan psikologi pasien akibat tindakan operasi yang dibatalkan dan pemindahan pasien. Kualitas dan keandalan daya yang kurang baik akan menyebabkan penurunan pelayanan dan pengeluaran anggaran biaya listrik yang berlebihan pada. Tujuan penelitian ini adalah untuk membuat perencanaan power monitoring dengan menggunakan teknologi wireless kWh meter, untuk dapat menentukan wireless kWh meter yang paling baik secara kualitas dan ekonomis serta dapat menentukan kabel distribusi listrik yang tepat pada instalasi listrik rumah sakit. Berdasarkan hasil penelitian, wireless kWh meter dapat diterapkan pada beberapa alat dengan tegangan rendah, untuk tegangan menengah dan tinggi perlu melakukan survey produk lebih lanjut. Wireless kWh meter yang dapat diterapkan pada penelitian ini untuk satu fasa SonOff Pow R2 dan untuk tiga fasa TOMZN DTS238-7. Kabel distribusi listrik yang dapat diterapkan pada instalasi rumah sakit adalah kabel NYM dengan ukurannya disesuaikan dengan besar arus yang ada pada peralatan.

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“…Environmental conditions, such as rain, contribute to increased difficulty and time consumption in completing the activity [9]. Furthermore, it should be noted that the manual inspection process is characterized by a significant degree of subjectivity and relies heavily on the knowledge and proficiency of human operators [10], [11]. Hence, it is imperative to develop automated systems capable of efficiently and safely inspecting insulators.…”

Section: Introductionmentioning

confidence: 99%

Infrared Thermography-Based Insulator Fault Classification via Unsupervised Clustering and Semi-Supervised Learning

Shafique,

Muhammad Alam,

Rashid

et al. 2024

IEEE Access

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Power substations play a crucial role in ensuring the reliable transmission of electricity to residential and commercial establishments. This paper addresses the critical issue of insulator fault detection in electric substations, emphasizing the importance of timely identification to prevent accidents. Conventional inspection methods relying on manual intervention pose high risk, especially in high-voltage substations. To overcome this, infra-red (IR) thermal cameras are employed, but human analysis of IR thermal images is subjective and time-consuming. The current paper develops a computer vision system uses advanced segmentation algorithms to automatically detect and categorize defects in insulators based on Infrared Thermography (IRT) images. The proposed system combines unsupervised clustering for efficient training with supervised learning for accurate classification. In particular, it first employs clustering techniques for unsupervised learning to reduce human labeling needs. Then, in the supervised learning phase, a Gaussian kernel support vector machine (SVM) algorithm classifies various insulator defects using extracted features. The trained algorithm utilizes the extracted characteristics to effectively identify and classify several fault types in thermal images of insulators. The system's efficiency in quickly identifying faults enables timely intervention, preventing potential power outages and safety hazards.

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Analysis of Power Outages and Human errors in the Operation of Equipment in Power Grids

Cited by 13 publications

References 4 publications

Effects of technical and security factors on grid electricity reliability: evidence from Uganda national electricity grid network

Effects of technical and security factors on grid electricity reliability: evidence from Uganda national electricity grid network

Perencanaan Penggunaan Wireless kWh Meter Untuk Monitoring Pemakaian Daya Listrik dan Instalasi Kabel Listrik di Rumah Sakit

Infrared Thermography-Based Insulator Fault Classification via Unsupervised Clustering and Semi-Supervised Learning

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