Alternating current power supplies and rolling stock with 25 kV (50 or 60 Hz) and 15 kV (16.7
Hz) traction systems do not have the characteristics and behaviour of a typical three‐phase …

This paper reports on a comprehensive study on a measurement method for the impedance
characteristics in the frequency domain of magnetic rings as a function of DC-bias current up …

A new wind turbine transformers protection method against high du/dt switching transients
taking place during a wind turbine operation is described. High-frequency transients …

Very-fast transient overvoltage (VFTO) is a serious threat to the insulation of extra-high
voltage and ultra-high voltage power-system equipment and should be suppressed. A …

Several methods have been proposed and investigated so far on mitigation of very fast
transient overvoltages (VFTO) in gas-insulated switchgear (GIS). The state-of-the-art …

This paper presents a method for determination of breakdown voltage characteristics (BDV)
of a gas-insulated switchgear (GIS) disconnector. The method is applicable for modeling …

We present a general framework for modeling power magnetic materials characteristics
using deep neural networks. Magnetic materials represented by multidimensional …

This paper investigates on a new concept for very-fast transient overvoltages (VFTOs)
attenuation in gas-insulated switchgear (GIS). The concept, first introduced by the authors in …

Nanocrystalline magnetic rings have been experimentally proven for effective damping of
very fast transient overvoltages (VFTOs) in gas-insulated switchgear (GIS). The application …

High voltage Gas Insulated Substation (GIS) is threatened by Very Fast Transient
Overvoltage (VFTO) which is high amplitude and high frequency transient within the range …