Streamer discharges are imaged in three gas mixtures of interest for high voltage insulation equipment - 10%02/90% CO2, 30% O2/ 70% CO2 and 5% C4-FN / 50% O2/ 90% CO2. The radii of streamer channels are evaluated, and the scaling constant for the inverse law relationship between the streamer radius...
During the manufacturing of a power transformer, typically, a fixed clamping pressure is exerted on the winding structure to keep its mechanical integrity during short circuit faults. Various factors, e.g., breathing during load cycles, poor sealing, aging of cellulose materials, etc., introduce...
Hva skjer når KI møter takstmannen? Og forsvinner forsikringsdekningen når muggsoppen begynner å vokse? ...
Hva skjer når KI møter takstmannen? Og forsvinner forsikringsdekningen når muggsoppen begynner å vokse?...
In most cases, the procurement of services depends on a description of a service as a set of specified entities. Detailed specification and reporting provide transparency and accountability in service production and give the buyer more control over service quality and efficiency. However, some...
Variable speed drives (VSDs) cause motor overvoltage stresses to result from fast-front voltage waveforms emerging from the converter, in particular when filters are not installed at the converter output terminals. This work investigates modeling procedures for predicting the overvoltages on a...
Den norske kraftsektoren har kommet langt når det gjelder digitalisering. Denne rapporten beskriver hvordan sikkerheten for klasse 1 og 2 driftskontrollsystemer kan ivaretas når funksjoner kritiske for operasjonell driftskontroll er avhengig av eller er plassert i skyen. Basert på en...
This document introduces the concept of multi-modal communication, using the coordination of a Search and Rescue (SAR) operation as an illustrating scenario, identifies challenges for secure information exchange and outlines the way forward....