Conceptual Design of the Termination Part for a Transmission Superconducting Fault Current Limiter

Kang, Hyoungku; Eliana, Bella; Ratri, Dewimaruto; Seunghee, O; Park, Younghun

doi:10.1007/s42835-021-00876-5

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…The average value of electric field intensity during sparkover, denoted as 𝐸 𝑆𝑂,63.2% , is determined by multiplying the value of VSO,63.2% by the analytical mean value of electric field intensity, E1kV,MEAN, derived from FEM analysis when a 1 kV potential is applied to the left electrode. The relationships among 𝐸 𝑆𝑂,63.2% , 𝑉 𝑆𝑂,63.2% , and 𝐸 1𝑘𝑉,𝑀𝐸𝐴𝑁 are mathematically expressed as follows [11,12]: 𝐸 𝑆𝑂,63.2% = 𝐸 1𝑘𝑉,𝑀𝐸𝐴𝑁 × 𝑉 𝑆𝑂 (1) In equation ( 1), 𝑉 𝑆𝑂 either there are no units or its units are contingent on the Poisson equation, which correlates the voltage of the electrode system with the charge density within the volume. This analysis offers crucial insights into the interplay between electric field intensity and breakdown voltage within the studied system.…”

Section: Fem Analysismentioning

confidence: 99%

Influence of thermal aging on dielectric characteristics of transformer insulating oils

Saodah,

Eliana,

Jakariya

2024

E3S Web of Conf.

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Transformer oil is a liquid insulating material used in transformers as insulation and coolant. Particular characteristics insulating oil materials must be able to withstand breakdown voltages, while transformer oil as a coolant must be able to minimize heat generated, so that transformer oil is expected to protect the transformer from disturbances with these two characteristics. In order to reduce the percentage of transformer failures, it is necessary to maintain the purity of the oil. The features of aged transformer oil and pure transformer oil are investigated in this study. Pure transformer oil is heated to a particular temperature and cycled to create samples of aged transformer oil. The electric field intensity of transformer oil is measured to estimate the dielectric strength of aged transformer oil. FEM analysis is used to determine the intensity of an electric field. At aging temperatures of 130°C and 150°C, the dielectric characteristics of transformer oil for both Shell Diala and Triapar types are investigated. As a result, not only the electrical characteristics but also the effects of thermal aging on the physical and chemical properties of transformer oil are reported in this study.

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Section: Fem Analysismentioning

confidence: 99%

Influence of thermal aging on dielectric characteristics of transformer insulating oils

Saodah,

Eliana,

Jakariya

2024

E3S Web of Conf.

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“…Kemudian, karakteristik dielektrik insulasi minyak trafo segar dan yang telah mengalami penuaan dianalisis. Serta, intensitas electic field akan dipelajari menggunakan analisis FEM (Finite Element Method) [11]. Sehingga, perubahan karakteristik pada minyak trafo, seperti tegangan tembus dan kekuatana dielektrik akan disajikan pada hasil penelitian ini.…”

Section: Pendahuluanunclassified

Studi pengaruh penuaan minyak trafo terhadap karakteristik dielektrik

Saodah,

Eliana,

Jakariya

2023

JITEL

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Trafo adalah peralatan penting dalam transmisi tenaga listrik. Berbagai jenis bahan insulasi yang digunakan dalam transformator diantaranya minyak mineral atau minyak transformator digunakan untuk insulasi. Dalam upaya mengurangi persentase kegagalan transformator, perlu untuk menjaga kemurnian minyak. Pada penelitian ini menyelidiki karakteristik dielektrik minyak transformator yang telah menglami penuaan dan minyak transformator murni. Sampel minyak trafo yang mengalami penuaan dibuat dengan menggunakan minyak transformator murni yang dipanaskan pada suhu tertentu dan dalam siklus yang telah ditentukan. Electric field intensity minyak trafo diidentifikasi untuk melihat dielectric strength dari minyak trafo yang mengalami penuaan. Dalam mengidentifikasi electric field intensity, analisis FEM dilakukan. Hasil penelitian menunjukkan bahwa dielectric strength minyak trafo baik pada tipe Shell Diala maupun Triapar mengalami degradasi sekitar 20% dan 40% pada suhu penuaan 130 °C dan 150 °C secara berurutan pada penerapan tegangan AC. Dengan begitu, pemberian tekanan thermal memengaruhi sifat dielektrik dari minyak trafo.

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Conceptual Design of the Termination Part for a Transmission Superconducting Fault Current Limiter

Cited by 2 publications

References 8 publications

Influence of thermal aging on dielectric characteristics of transformer insulating oils

Influence of thermal aging on dielectric characteristics of transformer insulating oils

Studi pengaruh penuaan minyak trafo terhadap karakteristik dielektrik

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