Summary
As the number of installed power cables, both onshore and offshore, is increasing, so is the number of electrical faults due mostly to installation and to external causes such anchors or fishing gears. Some scenarios are foreseeing as many as one fault per 100km of cable per year.
Read more Read lessThis will have a massive financial impact. It will also have a massive impact on electricity production; what cannot be transported by a failed power cable will have to be generated elsewhere, possibly with a completely different energy source and thus a completely different
CO2 footprint. Thus, to limit production loss and cost, localising a fault quickly is of prime importance.
Optical methods like Distributed Acoustic Sensing (DAS) are now finding their way as a fast and efficient means of localising fault position in near real time with distance accuracy along a power cable within a few tens of meters. Multiple examples from recent field measurements are reported here to illustrate the speed and the accuracy with which DAS helps localising faults and helps guiding repair vessel and crew to the right position.
Additional informations
| Publication type | Session Materials |
|---|---|
| Reference | B1_12268_2026 |
| Publication year | |
| Publisher | CIGRE |
| Country | Switzerland |
| Study committees | |
| File size | 842 KB |
| Price for non member | 30 € |
| Price for member | 30 € |
Authors
ROCHAT Etienne - EOSS Switzerland; NIGRO Eleonora - Prysmian Italy; D' AMBROSIO Michele - EOSS Switzerland; BUCCHERI Fabrizio - EOSS Italy; STOECKLI Marcel - ELECTROSUISSE / CIGRE Switzerland NC Secretary
Keywords
