- document
-
Mathew, P. (author), Ghaffarian Niasar, M. (author), Vaessen, P.T.M. (author)Penetration of power electronics in the grid has produced a new species of stresses, characterized by fast-rising pulsed waveforms with microsecond rise times repeating at several tens of kilohertz. Analyzing their impact on existing and future insulation systems requires pulse modulators, most often with pulse transformers (PTs), to perform...journal article 2023
- document
-
Basu, D. (author), Gholizad, B. (author), Ross, Robert (author), Gargari, Shima Mousavi (author)Elevated thermal stress-related aging is significant on the oil-impregnated paper (OIP) used as insulation in high-pressure gas cables (HPGCs). The aim of this article is to develop a cheap alternative for lab dielectric measuring and characterizing temperature-dependent parameters for OIP. First, this article derives the operating thermal...journal article 2022
- document
-
van Driel, W.D. (author), Beijer, J.G.J. (author), Bikker, J.W. (author), van Blokland, C.H.M. (author), Ankomah, C. (author), Jacobs, B. (author)We have seen an increasing number of reported colour maintenance issues in the market when it concerns LED-based products. Besides this, there are also requests to provide products that have < 2 SDCM colour point changes over lifetime. To understand the mechanisms behind colour maintenance in our LED-portfolio we have developed a...conference paper 2018