Summary
JWG A2/B4.28 monitored the reliability in service of HVDC Converter Transformers and the TB reports, over a period 1971-2009, an encouraging decrease in the failure rate. It also reviewed existing standard test specifications, with a view of representing the real service conditions. The importance of the Polarity Reversal (PR) test and the effect of the oil conductivity and the polarization time are stressed. The conclusion is that at this stage the existing test should not be modified.
Additional informations
| Publication type | Technical Brochures |
|---|---|
| Reference | 406 |
| Publication year | |
| Publisher | CIGRE |
| ISBN | 978-2-85873-093-3 |
| Study committees |
|
| Working groups | JWG A2/B4.28 |
| File size | 574 KB |
| Pages number | 38 |
| Price for non member | 80 € |
| Price for member | Free |
Authors
Milan Saravolac, Convenor (FR)
Gilson Machado Bastos (BR), Narinder S. Dhaliwal (CA), Sergio E. Santo (BR), Thomas Freyhult (SE), Yanny H. Fu (NL), Jan Hajek (SE), A.C. Hall (UK), Peter Heinzig (DE), Ugo Piovan (IT), Vijay Prasher (IN), Shirasaka Yukiyasu (JP)
Corresponding Members
Michael Bridger (NZ), Peter W. Christensen (DK), Roger Cormack (ZA), John F.Graham (BR), Carlos Peixoto (BR), Liu Zehong (CN)
