Comparison of power transformer response waveforms obtained by nanosecond low-voltage impulse testing using determination coefficient
The relevance of the research is caused by the need to predict the internal physical condition of power transformer windings. Windings displacement leads to a change in windings insulation distances. As a result, the service life of the winding insulation decreases and finally interturn fault occurs...
| Main Authors: | , |
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| Format: | Article |
| Language: | Russian |
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Tomsk Polytechnic University
2018-05-01
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| Series: | Известия Томского политехнического университета: Инжиниринг георесурсов |
| Subjects: | |
| Online Access: | http://izvestiya.tpu.ru/archive/article/view/2023 |
| _version_ | 1797813140442841088 |
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| author | Boris Leonidovich Kovrigin Alexei Valerievich Lavrinovich |
| author_facet | Boris Leonidovich Kovrigin Alexei Valerievich Lavrinovich |
| author_sort | Boris Leonidovich Kovrigin |
| collection | DOAJ |
| description | The relevance of the research is caused by the need to predict the internal physical condition of power transformer windings. Windings displacement leads to a change in windings insulation distances. As a result, the service life of the winding insulation decreases and finally interturn fault occurs. Detection of minor faults in the transformer is essential and difficult task that has not been solved yet. The most sensitive and perspective method as known is nanosecond low-voltage impulse testing, but when response waveforms are obtained and compared, final conclusion (using by visual inspection) is not always clear to make a decision about failures in the transformer windings. The main aim of the research is to develop a method for processing the response waveforms based on the results of diagnosing the internal physical condition of power transformer windings using nanosecond low-voltage impulses. Objects: the response waveforms based on the results of diagnosing the internal physical condition of power transformer ТМ-160/10-У1 by the nanosecond low-voltage impulse testing. Methods: nanosecond low-voltage impulse testing for obtaining the response waveforms; analysis and comparison of the obtained pulse response waveforms by calculation of determination coefficient; coefficient of determination to quantify the differences between the response waveforms. Results. The response waveforms of power transformer ТМ-160/10-У1 were processed using the coefficient of determination, which allows quantifying the comparison of waveforms. The method that allows correctly quantifying prediction of the internal physical condition is developed. |
| first_indexed | 2024-03-13T07:48:59Z |
| format | Article |
| id | doaj.art-637edf8d02f745b19dfd43d5aa155ee6 |
| institution | Directory Open Access Journal |
| issn | 2500-1019 2413-1830 |
| language | Russian |
| last_indexed | 2024-03-13T07:48:59Z |
| publishDate | 2018-05-01 |
| publisher | Tomsk Polytechnic University |
| record_format | Article |
| series | Известия Томского политехнического университета: Инжиниринг георесурсов |
| spelling | doaj.art-637edf8d02f745b19dfd43d5aa155ee62023-06-02T21:10:30ZrusTomsk Polytechnic UniversityИзвестия Томского политехнического университета: Инжиниринг георесурсов2500-10192413-18302018-05-013294Comparison of power transformer response waveforms obtained by nanosecond low-voltage impulse testing using determination coefficientBoris Leonidovich KovriginAlexei Valerievich LavrinovichThe relevance of the research is caused by the need to predict the internal physical condition of power transformer windings. Windings displacement leads to a change in windings insulation distances. As a result, the service life of the winding insulation decreases and finally interturn fault occurs. Detection of minor faults in the transformer is essential and difficult task that has not been solved yet. The most sensitive and perspective method as known is nanosecond low-voltage impulse testing, but when response waveforms are obtained and compared, final conclusion (using by visual inspection) is not always clear to make a decision about failures in the transformer windings. The main aim of the research is to develop a method for processing the response waveforms based on the results of diagnosing the internal physical condition of power transformer windings using nanosecond low-voltage impulses. Objects: the response waveforms based on the results of diagnosing the internal physical condition of power transformer ТМ-160/10-У1 by the nanosecond low-voltage impulse testing. Methods: nanosecond low-voltage impulse testing for obtaining the response waveforms; analysis and comparison of the obtained pulse response waveforms by calculation of determination coefficient; coefficient of determination to quantify the differences between the response waveforms. Results. The response waveforms of power transformer ТМ-160/10-У1 were processed using the coefficient of determination, which allows quantifying the comparison of waveforms. The method that allows correctly quantifying prediction of the internal physical condition is developed.http://izvestiya.tpu.ru/archive/article/view/2023energy conversion efficiencypower transformerdiagnosisnanosecond low-voltage impulse testingcoefficient of determinationresponse |
| spellingShingle | Boris Leonidovich Kovrigin Alexei Valerievich Lavrinovich Comparison of power transformer response waveforms obtained by nanosecond low-voltage impulse testing using determination coefficient Известия Томского политехнического университета: Инжиниринг георесурсов energy conversion efficiency power transformer diagnosis nanosecond low-voltage impulse testing coefficient of determination response |
| title | Comparison of power transformer response waveforms obtained by nanosecond low-voltage impulse testing using determination coefficient |
| title_full | Comparison of power transformer response waveforms obtained by nanosecond low-voltage impulse testing using determination coefficient |
| title_fullStr | Comparison of power transformer response waveforms obtained by nanosecond low-voltage impulse testing using determination coefficient |
| title_full_unstemmed | Comparison of power transformer response waveforms obtained by nanosecond low-voltage impulse testing using determination coefficient |
| title_short | Comparison of power transformer response waveforms obtained by nanosecond low-voltage impulse testing using determination coefficient |
| title_sort | comparison of power transformer response waveforms obtained by nanosecond low voltage impulse testing using determination coefficient |
| topic | energy conversion efficiency power transformer diagnosis nanosecond low-voltage impulse testing coefficient of determination response |
| url | http://izvestiya.tpu.ru/archive/article/view/2023 |
| work_keys_str_mv | AT borisleonidovichkovrigin comparisonofpowertransformerresponsewaveformsobtainedbynanosecondlowvoltageimpulsetestingusingdeterminationcoefficient AT alexeivalerievichlavrinovich comparisonofpowertransformerresponsewaveformsobtainedbynanosecondlowvoltageimpulsetestingusingdeterminationcoefficient |