DC withstand test with partial discharge measurement of convertor transformers: Problems and suggestions for improvement
To pre-discover the insulating defects and avoid possible insulation failures, DC withstand voltage test with partial discharge (PD) measurements are routinely conducted before the operation of a convertor transformer. However, a “downward trend” of PDs under DC voltage studied in this paper indicat...
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| Autor*in: |
Li, Yuan [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2017 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: IEEE transactions on dielectrics and electrical insulation - New York, NY : IEEE, 1965, 24(2017), 2, Seite 1105-1109 |
|---|---|
| Übergeordnetes Werk: |
volume:24 ; year:2017 ; number:2 ; pages:1105-1109 |
| Links: |
|---|
| DOI / URN: |
10.1109/TDEI.2017.006104 |
|---|
| Katalog-ID: |
OLC1992391963 |
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| 100 | 1 | |a Li, Yuan |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a DC withstand test with partial discharge measurement of convertor transformers: Problems and suggestions for improvement |
| 264 | 1 | |c 2017 | |
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| 520 | |a To pre-discover the insulating defects and avoid possible insulation failures, DC withstand voltage test with partial discharge (PD) measurements are routinely conducted before the operation of a convertor transformer. However, a “downward trend” of PDs under DC voltage studied in this paper indicates the limitation of the current test. According to the study, under DC voltage both PD magnitude and PD repetition rate decrease with voltage applying time. At Updiv=29 kV, the average charge is 105 pC in the first 10 min and 33 pC in the last 10 min. Whereas for 3Updiv=87 kV, the value are 2700 pC and 1561 pC separately. On the other hand, at Updiv, PD numbers decrease from 12 times in the first 10 min to 5 times in the last 10 min. At 3Updiv, the numbers are 102 times and 83 times. When PD magnitude is higher than 1400 pC, a whitish area appears at the surface of the pressboard, accompanied by the decrease of DC withstand voltage after 2 hours' PD exposure. The results raise the question that the current test measures PDs over 2000 pC in the last 30 minutes but may introduce PDs of higher magnitude at the early stage, which will damage the dielectrics. Based on further analysis, an improved test procedure is suggested. | ||
| 650 | 4 | |a Partial discharge measurement | |
| 650 | 4 | |a partial discharge | |
| 650 | 4 | |a HVDC transmission | |
| 650 | 4 | |a Decision support systems | |
| 650 | 4 | |a Converters | |
| 650 | 4 | |a oil-immersed pressboard | |
| 650 | 4 | |a Electrodes | |
| 650 | 4 | |a DC test with PD measurement | |
| 650 | 4 | |a Partial discharges | |
| 650 | 4 | |a Surface discharges | |
| 650 | 4 | |a valve windings | |
| 650 | 4 | |a Discharges (electric) | |
| 650 | 4 | |a convertor transformers | |
| 700 | 1 | |a Zhang, Qiaogen |4 oth | |
| 700 | 1 | |a Zhao, Yi |4 oth | |
| 700 | 1 | |a Wen, Tao |4 oth | |
| 700 | 1 | |a Liu, Guangqi |4 oth | |
| 700 | 1 | |a Wang, Ke |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |t IEEE transactions on dielectrics and electrical insulation |d New York, NY : IEEE, 1965 |g 24(2017), 2, Seite 1105-1109 |w (DE-627)129594873 |w (DE-600)240581-7 |w (DE-576)015087778 |x 0018-9367 |7 nnns |
| 773 | 1 | 8 | |g volume:24 |g year:2017 |g number:2 |g pages:1105-1109 |
| 856 | 4 | 1 | |u http://dx.doi.org/10.1109/TDEI.2017.006104 |3 Volltext |
| 856 | 4 | 2 | |u http://ieeexplore.ieee.org/document/7909222 |
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10.1109/TDEI.2017.006104 doi PQ20170501 (DE-627)OLC1992391963 (DE-599)GBVOLC1992391963 (PRQ)i585-4f1f53ec3ad6b1a3e178dd051b8483629f8260e33599cc5a86933550104220000 (KEY)0057128820170000024000201105dcwithstandtestwithpartialdischargemeasurementofco DE-627 ger DE-627 rakwb eng 620 DE-600 Li, Yuan verfasserin aut DC withstand test with partial discharge measurement of convertor transformers: Problems and suggestions for improvement 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier To pre-discover the insulating defects and avoid possible insulation failures, DC withstand voltage test with partial discharge (PD) measurements are routinely conducted before the operation of a convertor transformer. However, a “downward trend” of PDs under DC voltage studied in this paper indicates the limitation of the current test. According to the study, under DC voltage both PD magnitude and PD repetition rate decrease with voltage applying time. At Updiv=29 kV, the average charge is 105 pC in the first 10 min and 33 pC in the last 10 min. Whereas for 3Updiv=87 kV, the value are 2700 pC and 1561 pC separately. On the other hand, at Updiv, PD numbers decrease from 12 times in the first 10 min to 5 times in the last 10 min. At 3Updiv, the numbers are 102 times and 83 times. When PD magnitude is higher than 1400 pC, a whitish area appears at the surface of the pressboard, accompanied by the decrease of DC withstand voltage after 2 hours' PD exposure. The results raise the question that the current test measures PDs over 2000 pC in the last 30 minutes but may introduce PDs of higher magnitude at the early stage, which will damage the dielectrics. Based on further analysis, an improved test procedure is suggested. Partial discharge measurement partial discharge HVDC transmission Decision support systems Converters oil-immersed pressboard Electrodes DC test with PD measurement Partial discharges Surface discharges valve windings Discharges (electric) convertor transformers Zhang, Qiaogen oth Zhao, Yi oth Wen, Tao oth Liu, Guangqi oth Wang, Ke oth Enthalten in IEEE transactions on dielectrics and electrical insulation New York, NY : IEEE, 1965 24(2017), 2, Seite 1105-1109 (DE-627)129594873 (DE-600)240581-7 (DE-576)015087778 0018-9367 nnns volume:24 year:2017 number:2 pages:1105-1109 http://dx.doi.org/10.1109/TDEI.2017.006104 Volltext http://ieeexplore.ieee.org/document/7909222 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_70 GBV_ILN_2016 AR 24 2017 2 1105-1109 |
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10.1109/TDEI.2017.006104 doi PQ20170501 (DE-627)OLC1992391963 (DE-599)GBVOLC1992391963 (PRQ)i585-4f1f53ec3ad6b1a3e178dd051b8483629f8260e33599cc5a86933550104220000 (KEY)0057128820170000024000201105dcwithstandtestwithpartialdischargemeasurementofco DE-627 ger DE-627 rakwb eng 620 DE-600 Li, Yuan verfasserin aut DC withstand test with partial discharge measurement of convertor transformers: Problems and suggestions for improvement 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier To pre-discover the insulating defects and avoid possible insulation failures, DC withstand voltage test with partial discharge (PD) measurements are routinely conducted before the operation of a convertor transformer. However, a “downward trend” of PDs under DC voltage studied in this paper indicates the limitation of the current test. According to the study, under DC voltage both PD magnitude and PD repetition rate decrease with voltage applying time. At Updiv=29 kV, the average charge is 105 pC in the first 10 min and 33 pC in the last 10 min. Whereas for 3Updiv=87 kV, the value are 2700 pC and 1561 pC separately. On the other hand, at Updiv, PD numbers decrease from 12 times in the first 10 min to 5 times in the last 10 min. At 3Updiv, the numbers are 102 times and 83 times. When PD magnitude is higher than 1400 pC, a whitish area appears at the surface of the pressboard, accompanied by the decrease of DC withstand voltage after 2 hours' PD exposure. The results raise the question that the current test measures PDs over 2000 pC in the last 30 minutes but may introduce PDs of higher magnitude at the early stage, which will damage the dielectrics. Based on further analysis, an improved test procedure is suggested. Partial discharge measurement partial discharge HVDC transmission Decision support systems Converters oil-immersed pressboard Electrodes DC test with PD measurement Partial discharges Surface discharges valve windings Discharges (electric) convertor transformers Zhang, Qiaogen oth Zhao, Yi oth Wen, Tao oth Liu, Guangqi oth Wang, Ke oth Enthalten in IEEE transactions on dielectrics and electrical insulation New York, NY : IEEE, 1965 24(2017), 2, Seite 1105-1109 (DE-627)129594873 (DE-600)240581-7 (DE-576)015087778 0018-9367 nnns volume:24 year:2017 number:2 pages:1105-1109 http://dx.doi.org/10.1109/TDEI.2017.006104 Volltext http://ieeexplore.ieee.org/document/7909222 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_70 GBV_ILN_2016 AR 24 2017 2 1105-1109 |
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10.1109/TDEI.2017.006104 doi PQ20170501 (DE-627)OLC1992391963 (DE-599)GBVOLC1992391963 (PRQ)i585-4f1f53ec3ad6b1a3e178dd051b8483629f8260e33599cc5a86933550104220000 (KEY)0057128820170000024000201105dcwithstandtestwithpartialdischargemeasurementofco DE-627 ger DE-627 rakwb eng 620 DE-600 Li, Yuan verfasserin aut DC withstand test with partial discharge measurement of convertor transformers: Problems and suggestions for improvement 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier To pre-discover the insulating defects and avoid possible insulation failures, DC withstand voltage test with partial discharge (PD) measurements are routinely conducted before the operation of a convertor transformer. However, a “downward trend” of PDs under DC voltage studied in this paper indicates the limitation of the current test. According to the study, under DC voltage both PD magnitude and PD repetition rate decrease with voltage applying time. At Updiv=29 kV, the average charge is 105 pC in the first 10 min and 33 pC in the last 10 min. Whereas for 3Updiv=87 kV, the value are 2700 pC and 1561 pC separately. On the other hand, at Updiv, PD numbers decrease from 12 times in the first 10 min to 5 times in the last 10 min. At 3Updiv, the numbers are 102 times and 83 times. When PD magnitude is higher than 1400 pC, a whitish area appears at the surface of the pressboard, accompanied by the decrease of DC withstand voltage after 2 hours' PD exposure. The results raise the question that the current test measures PDs over 2000 pC in the last 30 minutes but may introduce PDs of higher magnitude at the early stage, which will damage the dielectrics. Based on further analysis, an improved test procedure is suggested. Partial discharge measurement partial discharge HVDC transmission Decision support systems Converters oil-immersed pressboard Electrodes DC test with PD measurement Partial discharges Surface discharges valve windings Discharges (electric) convertor transformers Zhang, Qiaogen oth Zhao, Yi oth Wen, Tao oth Liu, Guangqi oth Wang, Ke oth Enthalten in IEEE transactions on dielectrics and electrical insulation New York, NY : IEEE, 1965 24(2017), 2, Seite 1105-1109 (DE-627)129594873 (DE-600)240581-7 (DE-576)015087778 0018-9367 nnns volume:24 year:2017 number:2 pages:1105-1109 http://dx.doi.org/10.1109/TDEI.2017.006104 Volltext http://ieeexplore.ieee.org/document/7909222 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_70 GBV_ILN_2016 AR 24 2017 2 1105-1109 |
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10.1109/TDEI.2017.006104 doi PQ20170501 (DE-627)OLC1992391963 (DE-599)GBVOLC1992391963 (PRQ)i585-4f1f53ec3ad6b1a3e178dd051b8483629f8260e33599cc5a86933550104220000 (KEY)0057128820170000024000201105dcwithstandtestwithpartialdischargemeasurementofco DE-627 ger DE-627 rakwb eng 620 DE-600 Li, Yuan verfasserin aut DC withstand test with partial discharge measurement of convertor transformers: Problems and suggestions for improvement 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier To pre-discover the insulating defects and avoid possible insulation failures, DC withstand voltage test with partial discharge (PD) measurements are routinely conducted before the operation of a convertor transformer. However, a “downward trend” of PDs under DC voltage studied in this paper indicates the limitation of the current test. According to the study, under DC voltage both PD magnitude and PD repetition rate decrease with voltage applying time. At Updiv=29 kV, the average charge is 105 pC in the first 10 min and 33 pC in the last 10 min. Whereas for 3Updiv=87 kV, the value are 2700 pC and 1561 pC separately. On the other hand, at Updiv, PD numbers decrease from 12 times in the first 10 min to 5 times in the last 10 min. At 3Updiv, the numbers are 102 times and 83 times. When PD magnitude is higher than 1400 pC, a whitish area appears at the surface of the pressboard, accompanied by the decrease of DC withstand voltage after 2 hours' PD exposure. The results raise the question that the current test measures PDs over 2000 pC in the last 30 minutes but may introduce PDs of higher magnitude at the early stage, which will damage the dielectrics. Based on further analysis, an improved test procedure is suggested. Partial discharge measurement partial discharge HVDC transmission Decision support systems Converters oil-immersed pressboard Electrodes DC test with PD measurement Partial discharges Surface discharges valve windings Discharges (electric) convertor transformers Zhang, Qiaogen oth Zhao, Yi oth Wen, Tao oth Liu, Guangqi oth Wang, Ke oth Enthalten in IEEE transactions on dielectrics and electrical insulation New York, NY : IEEE, 1965 24(2017), 2, Seite 1105-1109 (DE-627)129594873 (DE-600)240581-7 (DE-576)015087778 0018-9367 nnns volume:24 year:2017 number:2 pages:1105-1109 http://dx.doi.org/10.1109/TDEI.2017.006104 Volltext http://ieeexplore.ieee.org/document/7909222 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_70 GBV_ILN_2016 AR 24 2017 2 1105-1109 |
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10.1109/TDEI.2017.006104 doi PQ20170501 (DE-627)OLC1992391963 (DE-599)GBVOLC1992391963 (PRQ)i585-4f1f53ec3ad6b1a3e178dd051b8483629f8260e33599cc5a86933550104220000 (KEY)0057128820170000024000201105dcwithstandtestwithpartialdischargemeasurementofco DE-627 ger DE-627 rakwb eng 620 DE-600 Li, Yuan verfasserin aut DC withstand test with partial discharge measurement of convertor transformers: Problems and suggestions for improvement 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier To pre-discover the insulating defects and avoid possible insulation failures, DC withstand voltage test with partial discharge (PD) measurements are routinely conducted before the operation of a convertor transformer. However, a “downward trend” of PDs under DC voltage studied in this paper indicates the limitation of the current test. According to the study, under DC voltage both PD magnitude and PD repetition rate decrease with voltage applying time. At Updiv=29 kV, the average charge is 105 pC in the first 10 min and 33 pC in the last 10 min. Whereas for 3Updiv=87 kV, the value are 2700 pC and 1561 pC separately. On the other hand, at Updiv, PD numbers decrease from 12 times in the first 10 min to 5 times in the last 10 min. At 3Updiv, the numbers are 102 times and 83 times. When PD magnitude is higher than 1400 pC, a whitish area appears at the surface of the pressboard, accompanied by the decrease of DC withstand voltage after 2 hours' PD exposure. The results raise the question that the current test measures PDs over 2000 pC in the last 30 minutes but may introduce PDs of higher magnitude at the early stage, which will damage the dielectrics. Based on further analysis, an improved test procedure is suggested. Partial discharge measurement partial discharge HVDC transmission Decision support systems Converters oil-immersed pressboard Electrodes DC test with PD measurement Partial discharges Surface discharges valve windings Discharges (electric) convertor transformers Zhang, Qiaogen oth Zhao, Yi oth Wen, Tao oth Liu, Guangqi oth Wang, Ke oth Enthalten in IEEE transactions on dielectrics and electrical insulation New York, NY : IEEE, 1965 24(2017), 2, Seite 1105-1109 (DE-627)129594873 (DE-600)240581-7 (DE-576)015087778 0018-9367 nnns volume:24 year:2017 number:2 pages:1105-1109 http://dx.doi.org/10.1109/TDEI.2017.006104 Volltext http://ieeexplore.ieee.org/document/7909222 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_70 GBV_ILN_2016 AR 24 2017 2 1105-1109 |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a2200265 4500</leader><controlfield tag="001">OLC1992391963</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230715041645.0</controlfield><controlfield tag="007">tu</controlfield><controlfield tag="008">170512s2017 xx ||||| 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1109/TDEI.2017.006104</subfield><subfield code="2">doi</subfield></datafield><datafield tag="028" ind1="5" ind2="2"><subfield code="a">PQ20170501</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)OLC1992391963</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)GBVOLC1992391963</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(PRQ)i585-4f1f53ec3ad6b1a3e178dd051b8483629f8260e33599cc5a86933550104220000</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(KEY)0057128820170000024000201105dcwithstandtestwithpartialdischargemeasurementofco</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">620</subfield><subfield code="q">DE-600</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Li, Yuan</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">DC withstand test with partial discharge measurement of convertor transformers: Problems and suggestions for improvement</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2017</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">ohne Hilfsmittel zu benutzen</subfield><subfield code="b">n</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Band</subfield><subfield code="b">nc</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">To pre-discover the insulating defects and avoid possible insulation failures, DC withstand voltage test with partial discharge (PD) measurements are routinely conducted before the operation of a convertor transformer. However, a “downward trend” of PDs under DC voltage studied in this paper indicates the limitation of the current test. According to the study, under DC voltage both PD magnitude and PD repetition rate decrease with voltage applying time. At Updiv=29 kV, the average charge is 105 pC in the first 10 min and 33 pC in the last 10 min. Whereas for 3Updiv=87 kV, the value are 2700 pC and 1561 pC separately. On the other hand, at Updiv, PD numbers decrease from 12 times in the first 10 min to 5 times in the last 10 min. At 3Updiv, the numbers are 102 times and 83 times. When PD magnitude is higher than 1400 pC, a whitish area appears at the surface of the pressboard, accompanied by the decrease of DC withstand voltage after 2 hours' PD exposure. The results raise the question that the current test measures PDs over 2000 pC in the last 30 minutes but may introduce PDs of higher magnitude at the early stage, which will damage the dielectrics. 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dc withstand test with partial discharge measurement of convertor transformers: problems and suggestions for improvement |
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DC withstand test with partial discharge measurement of convertor transformers: Problems and suggestions for improvement |
| abstract |
To pre-discover the insulating defects and avoid possible insulation failures, DC withstand voltage test with partial discharge (PD) measurements are routinely conducted before the operation of a convertor transformer. However, a “downward trend” of PDs under DC voltage studied in this paper indicates the limitation of the current test. According to the study, under DC voltage both PD magnitude and PD repetition rate decrease with voltage applying time. At Updiv=29 kV, the average charge is 105 pC in the first 10 min and 33 pC in the last 10 min. Whereas for 3Updiv=87 kV, the value are 2700 pC and 1561 pC separately. On the other hand, at Updiv, PD numbers decrease from 12 times in the first 10 min to 5 times in the last 10 min. At 3Updiv, the numbers are 102 times and 83 times. When PD magnitude is higher than 1400 pC, a whitish area appears at the surface of the pressboard, accompanied by the decrease of DC withstand voltage after 2 hours' PD exposure. The results raise the question that the current test measures PDs over 2000 pC in the last 30 minutes but may introduce PDs of higher magnitude at the early stage, which will damage the dielectrics. Based on further analysis, an improved test procedure is suggested. |
| abstractGer |
To pre-discover the insulating defects and avoid possible insulation failures, DC withstand voltage test with partial discharge (PD) measurements are routinely conducted before the operation of a convertor transformer. However, a “downward trend” of PDs under DC voltage studied in this paper indicates the limitation of the current test. According to the study, under DC voltage both PD magnitude and PD repetition rate decrease with voltage applying time. At Updiv=29 kV, the average charge is 105 pC in the first 10 min and 33 pC in the last 10 min. Whereas for 3Updiv=87 kV, the value are 2700 pC and 1561 pC separately. On the other hand, at Updiv, PD numbers decrease from 12 times in the first 10 min to 5 times in the last 10 min. At 3Updiv, the numbers are 102 times and 83 times. When PD magnitude is higher than 1400 pC, a whitish area appears at the surface of the pressboard, accompanied by the decrease of DC withstand voltage after 2 hours' PD exposure. The results raise the question that the current test measures PDs over 2000 pC in the last 30 minutes but may introduce PDs of higher magnitude at the early stage, which will damage the dielectrics. Based on further analysis, an improved test procedure is suggested. |
| abstract_unstemmed |
To pre-discover the insulating defects and avoid possible insulation failures, DC withstand voltage test with partial discharge (PD) measurements are routinely conducted before the operation of a convertor transformer. However, a “downward trend” of PDs under DC voltage studied in this paper indicates the limitation of the current test. According to the study, under DC voltage both PD magnitude and PD repetition rate decrease with voltage applying time. At Updiv=29 kV, the average charge is 105 pC in the first 10 min and 33 pC in the last 10 min. Whereas for 3Updiv=87 kV, the value are 2700 pC and 1561 pC separately. On the other hand, at Updiv, PD numbers decrease from 12 times in the first 10 min to 5 times in the last 10 min. At 3Updiv, the numbers are 102 times and 83 times. When PD magnitude is higher than 1400 pC, a whitish area appears at the surface of the pressboard, accompanied by the decrease of DC withstand voltage after 2 hours' PD exposure. The results raise the question that the current test measures PDs over 2000 pC in the last 30 minutes but may introduce PDs of higher magnitude at the early stage, which will damage the dielectrics. Based on further analysis, an improved test procedure is suggested. |
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DC withstand test with partial discharge measurement of convertor transformers: Problems and suggestions for improvement |
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