Sökning: "flashovers"
Hittade 4 avhandlingar innehållade ordet flashovers.
1. Long-term exposure of polymeric insulators to coastal contamination at Anneberg test station
Sammanfattning : .... LÄS MER
2. Multi-conductor transmission line model for electrified railways: A method for including responses of lumped devices
Sammanfattning : For studying the response to transients caused by lightning and other electromagnetic disturbance sources, electrified railway systems can be represented as a system of multiconductor transmission lines (MTL) above a finitely conducting ground. The conductors present in this system would be wires for traction power supply, auxiliary power, return conductors for traction current, the tracks, and finitely conducting ground. LÄS MER
3. Polymeric Outdoor Insulators - A Long-term Study
Sammanfattning : The long-term performance and the material state of polymeric insulators were examined from December 1987 to February 1997. To a large extent the study was conducted at Anneberg field station, on the west coast of Sweden. The project comprised a great number of commercially available polymeric insulators from several prominent manufacturers. LÄS MER
4. Electromagnetic Interference in Distributed Outdoor Electrical Systems, with an Emphasis on Lightning Interaction with Electrified Railway Network
Sammanfattning : This thesis deals with the electromagnetic compatibility (EMC) problems of distributed electrical networks, especially that caused by lightning to electrified railway. Lightning transients were found to damage important devices that control train movements, causing traffic stoppage and delays. LÄS MER