Abstract
On-line monitoring and diagnosis of transformers have been investigated and discussed significantly in last decade. This study has concentrated on issues arising while on-line transformer winding deformation diagnosis is going to be applied on transformers with various kinds of techniques. From technical perspective, before replacing off-line methods by on-line methods and eventually by intelligent approaches, practical challenges must be addressed and overcome. Hence, available off-line transformer winding deformation diagnosis methods are discussed precisely. Mathematical calculation in on-line short circuit impedance measurement is investigated. On-line transformer transfer function measurement setup is presented. A profound insight to the problems pertaining on-line transformer winding deformation recognition methods, characterizes existing online methods, explains the concepts behind online measurements and striving to open the discussion doors towards challenges are discussed. In the end a 400 MVA step up transformer has been taken as a case in order to clarify the capability of Frequency Response Analysis (FRA) method in fault detection while short circuit impedance could only demonstrate some rough understanding about transformer condition.
| Original language | English |
|---|---|
| Article number | 6396941 |
| Pages (from-to) | 1860-1870 |
| Number of pages | 11 |
| Journal | IEEE Transactions on Dielectrics and Electrical Insulation |
| Volume | 19 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2012 |
| Externally published | Yes |
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Keywords
- frequencyresponse analysis
- on-line diagnosis
- Transformer
- winding deformation
ASJC Scopus subject areas
- Electrical and Electronic Engineering
Cite this
Advanced transformer winding deformation diagnosis : Moving from off-line to on-line. / Bagheri, Mehdi; Naderi, Mohammad; Blackburn, Trevor.
In: IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 19, No. 6, 6396941, 2012, p. 1860-1870.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Advanced transformer winding deformation diagnosis
T2 - Moving from off-line to on-line
AU - Bagheri, Mehdi
AU - Naderi, Mohammad
AU - Blackburn, Trevor
PY - 2012
Y1 - 2012
N2 - On-line monitoring and diagnosis of transformers have been investigated and discussed significantly in last decade. This study has concentrated on issues arising while on-line transformer winding deformation diagnosis is going to be applied on transformers with various kinds of techniques. From technical perspective, before replacing off-line methods by on-line methods and eventually by intelligent approaches, practical challenges must be addressed and overcome. Hence, available off-line transformer winding deformation diagnosis methods are discussed precisely. Mathematical calculation in on-line short circuit impedance measurement is investigated. On-line transformer transfer function measurement setup is presented. A profound insight to the problems pertaining on-line transformer winding deformation recognition methods, characterizes existing online methods, explains the concepts behind online measurements and striving to open the discussion doors towards challenges are discussed. In the end a 400 MVA step up transformer has been taken as a case in order to clarify the capability of Frequency Response Analysis (FRA) method in fault detection while short circuit impedance could only demonstrate some rough understanding about transformer condition.
AB - On-line monitoring and diagnosis of transformers have been investigated and discussed significantly in last decade. This study has concentrated on issues arising while on-line transformer winding deformation diagnosis is going to be applied on transformers with various kinds of techniques. From technical perspective, before replacing off-line methods by on-line methods and eventually by intelligent approaches, practical challenges must be addressed and overcome. Hence, available off-line transformer winding deformation diagnosis methods are discussed precisely. Mathematical calculation in on-line short circuit impedance measurement is investigated. On-line transformer transfer function measurement setup is presented. A profound insight to the problems pertaining on-line transformer winding deformation recognition methods, characterizes existing online methods, explains the concepts behind online measurements and striving to open the discussion doors towards challenges are discussed. In the end a 400 MVA step up transformer has been taken as a case in order to clarify the capability of Frequency Response Analysis (FRA) method in fault detection while short circuit impedance could only demonstrate some rough understanding about transformer condition.
KW - frequencyresponse analysis
KW - on-line diagnosis
KW - Transformer
KW - winding deformation
UR - http://www.scopus.com/inward/record.url?scp=84872153977&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84872153977&partnerID=8YFLogxK
U2 - 10.1109/TDEI.2012.6396941
DO - 10.1109/TDEI.2012.6396941
M3 - Article
AN - SCOPUS:84872153977
VL - 19
SP - 1860
EP - 1870
JO - IEEE Transactions on Dielectrics and Electrical Insulation
JF - IEEE Transactions on Dielectrics and Electrical Insulation
SN - 1070-9878
IS - 6
M1 - 6396941
ER -