Measurement of partial discharges in power transformers using electromagnetic signals:
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| Main Author: | |
|---|---|
| Format: | Thesis Book |
| Language: | English |
| Published: |
Norderstedt
Books on Demand
2012
|
| Series: | Schriftenreihe des Instituts für Energieübertragung und Hochspannungstechnik
7 |
| Subjects: | |
| Online Access: | Inhaltstext Inhaltsverzeichnis |
| Physical Description: | 160 S. Ill., graph. Darst. |
| ISBN: | 9783848219360 |
Staff View
MARC
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Record in the Search Index
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| adam_text |
IMAGE 1
TABLE OF CONTENTS
LIST OF ABBREVIATIONS AND SYMBOLS 11
ABSTRACT 15
KURZFASSUNG 17
1 INTRODUCTION AND OBJECTIVES OF THE RESEARCH 19
1.1 INTRODUCTION 19
1.2 OBJECTIVE AND STRUCTURE 21
2 FUNDAMENTALS OF PARTIAL DISCHARGE DETECTION IN TRANSFORMERS 23
2.1 DEFINITION OF THE PD PHENOMENON 23
2.2 PD DETECTION METHODS 26
2.2.1 ELECTRICAL METHOD 26
2.2.2 ACOUSTIC METHOD 29
2.2.3 ELECTROMAGNETIC METHOD 29
3 UHF PROBES 31
3.1 PERFORMANCE CHECK FOR VERIFICATION OF UHF SYSTEM FUNCTIONALITY 31
3.1.1 SINGLE PORT PERFORMANCE CHECK 32
3.1.2 DUAL PORT PERFORMANCE CHECK 34
3.2 CHARACTERISATION OF UHF PROBE BY THE ANTENNA FACTOR 36
3.2.1 TRANSVERSE-EM CELL 37
3.2.2 DETERMINING THE ANTENNA FACTOR 40
3.2.3 INFLUENCE OF OIL ON ANTENNA FACTOR 43
3.2.4 RESULTING SENSITIVITY FOR UHF PROBE WITHIN OIL 45
3.3 MECHANICAL PROPERTIES 48
3.4 UHF TOP HATCH PROBES 49
3.5 CONCLUSIONS FOR UHF PROBES 50
4 FUNDAMENTALS OF UHF SIGNALS IN TRANSFORMERS 53
4.1 LABORATORY INVESTIGATIONS ON UHF SIGNAL PROPAGATION 53
4.1.1 RADIATION BEHAVIOUR OF PD SOURCES 54
4.1.2 INFLUENCE OF WINDINGS ON UHF SIGNALS OF PD SOURCES 58
HTTP://D-NB.INFO/1024941302
IMAGE 2
8
TABLE OF CONTENTS
4.1.3 INFLUENCE OF WINDINGS ON UHF SIGNALS OF A SIGNAL GENERATOR 63
4.2 ATTENUATION OF UHF SIGNALS INSIDE TRANSFORMERS 66
4.2.1 DIFFERENT UHF QUANTITIES 66
4.2.2 ATTENUATION OF UHF SIGNALS 70
4.3 CORRELATION BETWEEN UHF SIGNAL QUANTITIES AND IEC60270 QUANTITIES 73
4.3.1 SIMULTANEOUS MEASUREMENTS OF UHF AND IEC QUANTITIES 73
4.3.2 CORRELATION BETWEEN UHF AND IEC QUANTITIES 74
4.4 SENSITIVITY CHECK 77
4.4.1 SENSITIVITY CHECK IN LABORATORY ENVIRONMENT WITH PORTABLE PD
SOURCE. 79
4.4.2 SENSITIVITY CHECK FOR TRANSFORMERS IN THE FIELD WITH PD SOURCE
PROBE. 81
4.5 DIFFERENCES BETWEEN UHF SIGNALS QUANTITIES AND IEC60270 QUANTITIES
85
4.5.1 MOVABLE PD SOURCE WITH CONSTANT GEOMETRY AND MEASURING SETUP 86
4.5.2 CHANGE OF APPARENT CHARGE DEPENDING ON PD LOCATION 88
4.5.3 SIMULTANEOUS UHF AND IEC MEASUREMENTS 91
4.6 GATING 95
4.7 CONCLUSIONS FOR UHF SIGNALS IN TRANSFORMERS 97
5 CASE STUDIES FOR PD DETECTION BY UHF SIGNALS 99
5.1 PERFORMANCE CHECK AND IDENTIFICATION OF ON-SITE UHF DISTURBANCES 99
5.2 DETECTION OF PD AND RESILIENCE AGAINST EXTERNAL CORONA DISCHARGE 103
5.3 DUAL PORT PERFORMANCE CHECK AND UHF MONITORING 106
5.4 GATING OF IEC MEASUREMENTS BY UHF SIGNALS 110
5.5 CONCLUSIONS FOR PD DETECTION BY UHF SIGNALS 113
6 PD LOCALISATION BY UHF AND ACOUSTIC MEASUREMENTS 115
6.1 TECHNIQUES FOR PD LOCALISATION 116
6.1.1 PD LOCALISATION WITH TWO SENSORS IN THE SAME POSITION 116
6.1.2 PD LOCALISATION WITH TWO SENSORS AT DIFFERENT POSITIONS 118
6.1.3 PD LOCALISATION WITH ACOUSTIC SENSOR ARRAY 121
6.2 CASE STUDY FOR STATE OF THE ART PD LOCALISATION 125
6.3 CASE STUDY FOR PD LOCALISATION WITH TWO UHF PROBES 131
6.4 CASE STUDY FOR PD LOCALISATION WITH ACOUSTIC SENSOR ARRAY 135
6.5 CONCLUSION FOR PD DETECTION AND LOCALISATION BY DIFFERENT TECHNIQUES
FOR ONSITE MEASUREMENTS 137
IMAGE 3
TABLE OF CONTENTS 9
7 CONCLUSIONS AND RECOMMENDATIONS FOR FURTHER RESEARCH 141
8 APPENDIXES 147
9 REFERENCES 155 |
| any_adam_object | 1 |
| author | Coenen, Sebastian |
| author_GND | (DE-588)1026992834 |
| author_facet | Coenen, Sebastian |
| author_role | aut |
| author_sort | Coenen, Sebastian |
| author_variant | s c sc |
| building | Verbundindex |
| bvnumber | BV040752949 |
| classification_rvk | ZN 8330 |
| ctrlnum | (OCoLC)816304782 (DE-599)DNB1024941302 |
| dewey-full | 621.31937 621.3140287 |
| dewey-hundreds | 600 - Technology (Applied sciences) |
| dewey-ones | 621 - Applied physics |
| dewey-raw | 621.31937 621.3140287 |
| dewey-search | 621.31937 621.3140287 |
| dewey-sort | 3621.31937 |
| dewey-tens | 620 - Engineering and allied operations |
| discipline | Elektrotechnik / Elektronik / Nachrichtentechnik |
| format | Thesis Book |
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| indexdate | 2024-08-21T00:33:05Z |
| institution | BVB |
| isbn | 9783848219360 |
| language | English |
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| physical | 160 S. Ill., graph. Darst. |
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| series | Schriftenreihe des Instituts für Energieübertragung und Hochspannungstechnik |
| series2 | Schriftenreihe des Instituts für Energieübertragung und Hochspannungstechnik |
| spelling | Coenen, Sebastian Verfasser (DE-588)1026992834 aut Measurement of partial discharges in power transformers using electromagnetic signals vorgelegt von Sebastian Coenen Norderstedt Books on Demand 2012 160 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Schriftenreihe des Instituts für Energieübertragung und Hochspannungstechnik 7 Zugl.: Stuttgart, Univ., Diss., 2012 Elektromagnetische Welle (DE-588)4014301-6 gnd rswk-swf Leistungstransformator (DE-588)4167309-8 gnd rswk-swf Signalverarbeitung (DE-588)4054947-1 gnd rswk-swf Isolationsüberwachung (DE-588)4208429-5 gnd rswk-swf Funktionstest (DE-588)4155698-7 gnd rswk-swf Sensortechnik (DE-588)4121663-5 gnd rswk-swf Dezimeterwelle (DE-588)4012008-9 gnd rswk-swf Teilentladung (DE-588)4260183-6 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Leistungstransformator (DE-588)4167309-8 s Isolationsüberwachung (DE-588)4208429-5 s Teilentladung (DE-588)4260183-6 s Sensortechnik (DE-588)4121663-5 s Dezimeterwelle (DE-588)4012008-9 s Elektromagnetische Welle (DE-588)4014301-6 s Signalverarbeitung (DE-588)4054947-1 s Funktionstest (DE-588)4155698-7 s DE-604 Schriftenreihe des Instituts für Energieübertragung und Hochspannungstechnik 7 (DE-604)BV036748531 7 X:MVB text/html http://deposit.dnb.de/cgi-bin/dokserv?id=4097462&prov=M&dok%5Fvar=1&dok%5Fext=htm Inhaltstext DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=025732681&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Coenen, Sebastian Measurement of partial discharges in power transformers using electromagnetic signals Schriftenreihe des Instituts für Energieübertragung und Hochspannungstechnik Elektromagnetische Welle (DE-588)4014301-6 gnd Leistungstransformator (DE-588)4167309-8 gnd Signalverarbeitung (DE-588)4054947-1 gnd Isolationsüberwachung (DE-588)4208429-5 gnd Funktionstest (DE-588)4155698-7 gnd Sensortechnik (DE-588)4121663-5 gnd Dezimeterwelle (DE-588)4012008-9 gnd Teilentladung (DE-588)4260183-6 gnd |
| subject_GND | (DE-588)4014301-6 (DE-588)4167309-8 (DE-588)4054947-1 (DE-588)4208429-5 (DE-588)4155698-7 (DE-588)4121663-5 (DE-588)4012008-9 (DE-588)4260183-6 (DE-588)4113937-9 |
| title | Measurement of partial discharges in power transformers using electromagnetic signals |
| title_auth | Measurement of partial discharges in power transformers using electromagnetic signals |
| title_exact_search | Measurement of partial discharges in power transformers using electromagnetic signals |
| title_full | Measurement of partial discharges in power transformers using electromagnetic signals vorgelegt von Sebastian Coenen |
| title_fullStr | Measurement of partial discharges in power transformers using electromagnetic signals vorgelegt von Sebastian Coenen |
| title_full_unstemmed | Measurement of partial discharges in power transformers using electromagnetic signals vorgelegt von Sebastian Coenen |
| title_short | Measurement of partial discharges in power transformers using electromagnetic signals |
| title_sort | measurement of partial discharges in power transformers using electromagnetic signals |
| topic | Elektromagnetische Welle (DE-588)4014301-6 gnd Leistungstransformator (DE-588)4167309-8 gnd Signalverarbeitung (DE-588)4054947-1 gnd Isolationsüberwachung (DE-588)4208429-5 gnd Funktionstest (DE-588)4155698-7 gnd Sensortechnik (DE-588)4121663-5 gnd Dezimeterwelle (DE-588)4012008-9 gnd Teilentladung (DE-588)4260183-6 gnd |
| topic_facet | Elektromagnetische Welle Leistungstransformator Signalverarbeitung Isolationsüberwachung Funktionstest Sensortechnik Dezimeterwelle Teilentladung Hochschulschrift |
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| volume_link | (DE-604)BV036748531 |
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