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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Rapp, K.J. Lemm, A.W. Orozco, L.A. McShane, C.P. |
| Copyright Year | 2008 |
| Abstract | Beginning in the 1990s, failures of large power transformers and reactors have occurred which are attributed to the presence of corrosive sulphur in mineral oil. In Brazil, one regional G&T utility reported multiple large power transformer failures. Intensive investigations of the failure phenomena, associated detection, and remedies have been pursued by many experts on an international scale. This paper address the used of natural esters as a means to eliminate the introduction of corrosive sulphur components that may be present in petroleum based mineral oil dielectric coolants. This paper provides a summary of our comparative test data, including samples representing retro-filled power transformers. It also discusses the field performance history of natural ester filled 230 kV power transformers that have been put into service, including installations replacing mineral oil filled transformers that were reported to have failed due to corrosive sulfur. |
| Starting Page | 1 |
| Ending Page | 6 |
| File Size | 1193119 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781424422173 |
| DOI | 10.1109/TDC-LA.2008.4641707 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2008-08-13 |
| Publisher Place | Colombia |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Strips Metal Passivator Power Transformer Dielectric Coolant Oil insulation Natural Ester Compounds Petroleum Corrosive Sulfur Fluids Dibensyl Disulfide (DBDS) Copper Testing |
| Content Type | Text |
| Resource Type | Article |
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