Study on evaluation method of insulation performance of mine cable based on dielectric response method
The high voltage cable used in mine is affected by many factors, such as electricity, heat and machinery stress. These factors accelerate insulation aging and easily lead to cable leakage, short circuit or discharge. At present, the dielectric response method is introduced into analysis, evaluation...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Department of Industry and Mine Automation
2023-02-01
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| Series: | Gong-kuang zidonghua |
| Subjects: | |
| Online Access: | http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.18047 |
| _version_ | 1797869042944442368 |
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| author | LEI Zhipeng LI Wei HE Qinghui MEN Rujia WANG Ye LIU Yang LIN Lingyan |
| author_facet | LEI Zhipeng LI Wei HE Qinghui MEN Rujia WANG Ye LIU Yang LIN Lingyan |
| author_sort | LEI Zhipeng |
| collection | DOAJ |
| description | The high voltage cable used in mine is affected by many factors, such as electricity, heat and machinery stress. These factors accelerate insulation aging and easily lead to cable leakage, short circuit or discharge. At present, the dielectric response method is introduced into analysis, evaluation and diagnosis of insulation performance and aging state of mine cables. In view of problems of insulation performance and aging state evaluation of mine cables, the commonly used ethylene propylene diene monomer (EPDM) insulated mobile flexible cable for mining is taken as the research object. The basic principles and typical characteristics of recovery voltage method, polarization/depolarization current method and frequency-domain dielectric spectroscopy method in dielectric response method are summarized. The advantages and disadvantages of the three methods are compared. The characteristics of cable insulation performance evaluation based on the dielectric response model are introduced. The characteristics include the aging factor extracted by the extended Debye model, relaxation characteristics extracted by the modified dielectric relaxation model and dielectric loss integral spectrum. The application of the dielectric response method in the evaluation of the insulation performance of mine cables is summarized from the following aspects. The aspects include the identification of trace corrosion degree of mine cables based on recovery voltage method and polarization/depolarization current method. The aspects include the evaluation of EPDM insulation multi-stress aging state based on polarization/depolarization current method and isothermal relaxation current, based on dielectric relaxation model and based on dielectric loss integral value. The existing online monitoring technology for the evaluation of the insulation performance of mine cables based on the dielectric response method cannot adapt to the working conditions of coal mines. The evaluation data is insufficient, and the relationship between the insulation deterioration degree and the characteristic quantity is unknown. In order to solve the above problems, this paper puts forward that the research should focus on two key technologies, namely, cable insulation state perception and the relationship between insulation degradation degree and characteristic quantity construction. |
| first_indexed | 2024-04-10T00:05:22Z |
| format | Article |
| id | doaj.art-388ec7b125da40bca7a684ecb97cbd6b |
| institution | Directory Open Access Journal |
| issn | 1671-251X |
| language | zho |
| last_indexed | 2024-04-10T00:05:22Z |
| publishDate | 2023-02-01 |
| publisher | Editorial Department of Industry and Mine Automation |
| record_format | Article |
| series | Gong-kuang zidonghua |
| spelling | doaj.art-388ec7b125da40bca7a684ecb97cbd6b2023-03-17T00:55:37ZzhoEditorial Department of Industry and Mine AutomationGong-kuang zidonghua1671-251X2023-02-01491465510.13272/j.issn.1671-251x.18047Study on evaluation method of insulation performance of mine cable based on dielectric response methodLEI ZhipengLI WeiHE QinghuiMEN RujiaWANG Ye0LIU Yang1LIN LingyanXingtang County Branch of State Grid Hebei Electric Power Co., Ltd., Shijiazhuang 050600, ChinaDaxing Power Supply Company of State Grid Beijing Electric Power Company, Beijing 102600, ChinaThe high voltage cable used in mine is affected by many factors, such as electricity, heat and machinery stress. These factors accelerate insulation aging and easily lead to cable leakage, short circuit or discharge. At present, the dielectric response method is introduced into analysis, evaluation and diagnosis of insulation performance and aging state of mine cables. In view of problems of insulation performance and aging state evaluation of mine cables, the commonly used ethylene propylene diene monomer (EPDM) insulated mobile flexible cable for mining is taken as the research object. The basic principles and typical characteristics of recovery voltage method, polarization/depolarization current method and frequency-domain dielectric spectroscopy method in dielectric response method are summarized. The advantages and disadvantages of the three methods are compared. The characteristics of cable insulation performance evaluation based on the dielectric response model are introduced. The characteristics include the aging factor extracted by the extended Debye model, relaxation characteristics extracted by the modified dielectric relaxation model and dielectric loss integral spectrum. The application of the dielectric response method in the evaluation of the insulation performance of mine cables is summarized from the following aspects. The aspects include the identification of trace corrosion degree of mine cables based on recovery voltage method and polarization/depolarization current method. The aspects include the evaluation of EPDM insulation multi-stress aging state based on polarization/depolarization current method and isothermal relaxation current, based on dielectric relaxation model and based on dielectric loss integral value. The existing online monitoring technology for the evaluation of the insulation performance of mine cables based on the dielectric response method cannot adapt to the working conditions of coal mines. The evaluation data is insufficient, and the relationship between the insulation deterioration degree and the characteristic quantity is unknown. In order to solve the above problems, this paper puts forward that the research should focus on two key technologies, namely, cable insulation state perception and the relationship between insulation degradation degree and characteristic quantity construction.http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.18047mine cableinsulation performance evaluationdielectric response methodrecovery voltage methodpolarization/depolarization current methodfrequency domain dielectric spectroscopymulti stress aging |
| spellingShingle | LEI Zhipeng LI Wei HE Qinghui MEN Rujia WANG Ye LIU Yang LIN Lingyan Study on evaluation method of insulation performance of mine cable based on dielectric response method Gong-kuang zidonghua mine cable insulation performance evaluation dielectric response method recovery voltage method polarization/depolarization current method frequency domain dielectric spectroscopy multi stress aging |
| title | Study on evaluation method of insulation performance of mine cable based on dielectric response method |
| title_full | Study on evaluation method of insulation performance of mine cable based on dielectric response method |
| title_fullStr | Study on evaluation method of insulation performance of mine cable based on dielectric response method |
| title_full_unstemmed | Study on evaluation method of insulation performance of mine cable based on dielectric response method |
| title_short | Study on evaluation method of insulation performance of mine cable based on dielectric response method |
| title_sort | study on evaluation method of insulation performance of mine cable based on dielectric response method |
| topic | mine cable insulation performance evaluation dielectric response method recovery voltage method polarization/depolarization current method frequency domain dielectric spectroscopy multi stress aging |
| url | http://www.gkzdh.cn/article/doi/10.13272/j.issn.1671-251x.18047 |
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