Analysis of Long-Term Deterioration Characteristics of High Voltage Insulators
The deterioration of the cement that bonds the cap, pin, and porcelain shell of the porcelain insulators can be observed by three-dimensional computed tomography (3D-CT), a non-destructive test. When porcelain insulators are used for a long duration, the size of the pores existing in the cement incr...
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MDPI AG
2019-12-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/1/123 |
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| author | Taeyong Kim Simpy Sanyal Ja-Bin Koo Ju-Am Son In-Hyuk Choi Junsin Yi |
| author_facet | Taeyong Kim Simpy Sanyal Ja-Bin Koo Ju-Am Son In-Hyuk Choi Junsin Yi |
| author_sort | Taeyong Kim |
| collection | DOAJ |
| description | The deterioration of the cement that bonds the cap, pin, and porcelain shell of the porcelain insulators can be observed by three-dimensional computed tomography (3D-CT), a non-destructive test. When porcelain insulators are used for a long duration, the size of the pores existing in the cement increase as the cement expands due to the alkali-silica reaction (ASR). It is possible to visually confirm the corrosion of caps and pins. The degree of corrosion is divided into four noticeable stages (I−IV), and deterioration of cement includes one of the four stages of corrosion. The standard time of replacement of insulator vs. continued use is presented. As a result of X-ray diffraction (XRD) analysis, Fe is oxidized to Fe<sub>2</sub>O<sub>3</sub> at 36, 43, 54, and 70 degrees. The corrosion in cement is caused by factors including the value of pH, oxygen content, and temperature. For the caps and pins, although a zinc coating is applied to prevent the corrosion of iron, corrosion of zinc is caused by substances present in the external environment. When the zinc coating begins to corrode, the corrosion of the Fe component of the cap and pin accelerates, causing mechanical/electrical problems. |
| first_indexed | 2024-12-11T15:58:01Z |
| format | Article |
| id | doaj.art-df68db6534b0498c9f495b01e9e46ff4 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-11T15:58:01Z |
| publishDate | 2019-12-01 |
| publisher | MDPI AG |
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| spelling | doaj.art-df68db6534b0498c9f495b01e9e46ff42022-12-22T00:59:23ZengMDPI AGApplied Sciences2076-34172019-12-0110112310.3390/app10010123app10010123Analysis of Long-Term Deterioration Characteristics of High Voltage InsulatorsTaeyong Kim0Simpy Sanyal1Ja-Bin Koo2Ju-Am Son3In-Hyuk Choi4Junsin Yi5College of Information and Communication Engineering, Sungkyunkwan University, Suwon, Gyeonggi-Do 16419, KoreaCollege of Information and Communication Engineering, Sungkyunkwan University, Suwon, Gyeonggi-Do 16419, KoreaKEPCO Research Institute, Daejeon 34056, KoreaKEPCO Research Institute, Daejeon 34056, KoreaKEPCO Research Institute, Daejeon 34056, KoreaCollege of Information and Communication Engineering, Sungkyunkwan University, Suwon, Gyeonggi-Do 16419, KoreaThe deterioration of the cement that bonds the cap, pin, and porcelain shell of the porcelain insulators can be observed by three-dimensional computed tomography (3D-CT), a non-destructive test. When porcelain insulators are used for a long duration, the size of the pores existing in the cement increase as the cement expands due to the alkali-silica reaction (ASR). It is possible to visually confirm the corrosion of caps and pins. The degree of corrosion is divided into four noticeable stages (I−IV), and deterioration of cement includes one of the four stages of corrosion. The standard time of replacement of insulator vs. continued use is presented. As a result of X-ray diffraction (XRD) analysis, Fe is oxidized to Fe<sub>2</sub>O<sub>3</sub> at 36, 43, 54, and 70 degrees. The corrosion in cement is caused by factors including the value of pH, oxygen content, and temperature. For the caps and pins, although a zinc coating is applied to prevent the corrosion of iron, corrosion of zinc is caused by substances present in the external environment. When the zinc coating begins to corrode, the corrosion of the Fe component of the cap and pin accelerates, causing mechanical/electrical problems.https://www.mdpi.com/2076-3417/10/1/1233d-ctalkali-silica reactioncorrosioninsulatorpower transmissionx-ray diffraction |
| spellingShingle | Taeyong Kim Simpy Sanyal Ja-Bin Koo Ju-Am Son In-Hyuk Choi Junsin Yi Analysis of Long-Term Deterioration Characteristics of High Voltage Insulators Applied Sciences 3d-ct alkali-silica reaction corrosion insulator power transmission x-ray diffraction |
| title | Analysis of Long-Term Deterioration Characteristics of High Voltage Insulators |
| title_full | Analysis of Long-Term Deterioration Characteristics of High Voltage Insulators |
| title_fullStr | Analysis of Long-Term Deterioration Characteristics of High Voltage Insulators |
| title_full_unstemmed | Analysis of Long-Term Deterioration Characteristics of High Voltage Insulators |
| title_short | Analysis of Long-Term Deterioration Characteristics of High Voltage Insulators |
| title_sort | analysis of long term deterioration characteristics of high voltage insulators |
| topic | 3d-ct alkali-silica reaction corrosion insulator power transmission x-ray diffraction |
| url | https://www.mdpi.com/2076-3417/10/1/123 |
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