Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings of 2001 International Symposium on Electrical Insulating Materials (ISEIM 2001) |
| Subtitle of host publication | 2001 Asian Conference on Electrical Insulation Diagnosis (ACEID 2001). 33rd Symposium on Electrical and Electronic Insulating Materials and Applications in Systems |
| Pages | 587-590 |
| Number of pages | 4 |
| Publication status | Published - 2001 |
| Event | International Symposium on Electrical Insulating Materials (ISEIM 2001) - Himeji, Japan Duration: 19 Nov 2001 → 22 Nov 2001 |
Abstract
Although solid and gaseous insulations have become increasingly important during the last decades the application of insulating liquids together with cellulosic paper is still essential for some kinds of applications like power transformers. A dominant risk, reducing the strength of such insulations, is water, thus drying procedures are required to extend lifetime and operation reliability. Actually transformer drying is in most cases performed as a maintenance action where it is tried to remove water by vacuum and heat. Such a procedure has to be performed offline and also comprises the risk of insulation endangerment. Such disadvantages can be avoided by an online drying procedure which is not only valuable for aged insulations where it increases the residual lifetime but also for new devices where it reduces the risk of early outages. In this contribution an innovative procedure for the dehydration of mineral insulating oils is presented, working online during transformer operation. This procedure not only performs a complete desiccation, it also purifies the liquid without influencing the dissolved gas analysis (DGA) or any other physical property. Herewith presented investigations on the operation parameters like temperature and flow rate have shown, that the procedure is beneficial for insulating liquids as well as for solid insulations immersed therein.
ASJC Scopus subject areas
- Engineering(all)
- General Engineering
- Materials Science(all)
- General Materials Science
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Proceedings of 2001 International Symposium on Electrical Insulating Materials (ISEIM 2001): 2001 Asian Conference on Electrical Insulation Diagnosis (ACEID 2001). 33rd Symposium on Electrical and Electronic Insulating Materials and Applications in Systems . 2001. p. 587-590.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - An innovative online drying procedure for liquid insulated high voltage apparatus
AU - Wasserberg, V.
AU - Borsi, H.
AU - Gockenbach, Ernst
PY - 2001
Y1 - 2001
N2 - Although solid and gaseous insulations have become increasingly important during the last decades the application of insulating liquids together with cellulosic paper is still essential for some kinds of applications like power transformers. A dominant risk, reducing the strength of such insulations, is water, thus drying procedures are required to extend lifetime and operation reliability. Actually transformer drying is in most cases performed as a maintenance action where it is tried to remove water by vacuum and heat. Such a procedure has to be performed offline and also comprises the risk of insulation endangerment. Such disadvantages can be avoided by an online drying procedure which is not only valuable for aged insulations where it increases the residual lifetime but also for new devices where it reduces the risk of early outages. In this contribution an innovative procedure for the dehydration of mineral insulating oils is presented, working online during transformer operation. This procedure not only performs a complete desiccation, it also purifies the liquid without influencing the dissolved gas analysis (DGA) or any other physical property. Herewith presented investigations on the operation parameters like temperature and flow rate have shown, that the procedure is beneficial for insulating liquids as well as for solid insulations immersed therein.
AB - Although solid and gaseous insulations have become increasingly important during the last decades the application of insulating liquids together with cellulosic paper is still essential for some kinds of applications like power transformers. A dominant risk, reducing the strength of such insulations, is water, thus drying procedures are required to extend lifetime and operation reliability. Actually transformer drying is in most cases performed as a maintenance action where it is tried to remove water by vacuum and heat. Such a procedure has to be performed offline and also comprises the risk of insulation endangerment. Such disadvantages can be avoided by an online drying procedure which is not only valuable for aged insulations where it increases the residual lifetime but also for new devices where it reduces the risk of early outages. In this contribution an innovative procedure for the dehydration of mineral insulating oils is presented, working online during transformer operation. This procedure not only performs a complete desiccation, it also purifies the liquid without influencing the dissolved gas analysis (DGA) or any other physical property. Herewith presented investigations on the operation parameters like temperature and flow rate have shown, that the procedure is beneficial for insulating liquids as well as for solid insulations immersed therein.
UR - http://www.scopus.com/inward/record.url?scp=0035719261&partnerID=8YFLogxK
U2 - 10.1109/ISEIM.2001.973737
DO - 10.1109/ISEIM.2001.973737
M3 - Conference contribution
AN - SCOPUS:0035719261
SN - 4-88686-053-2
SP - 587
EP - 590
BT - Proceedings of 2001 International Symposium on Electrical Insulating Materials (ISEIM 2001)
T2 - International Symposium on Electrical Insulating Materials (ISEIM 2001)
Y2 - 19 November 2001 through 22 November 2001
ER -