Results 31 to 40 of about 2,509,073 (379)
Energies, 2021 The increasing number of power electronic devices in electrical grids may lead to harmonic distorted voltages, which are considered to be possible causes of component failures. In this study, the dielectric losses of epoxy polymer and functionally filled
Thomas Linde +5 more
doaj +1 more source
Electrical Treeing of SiR and SiR/Fe3O4 Nanocomposites in High Magnetic Field
IEEE Access, 2023 This paper investigates the effects of high magnetic field on electrical treeing of silicone rubber (SiR). Experimental results show that electrical trees are more easily to be initiated and spread further along the direction of electric field under the ...
Mingyang Wang +4 more
doaj +1 more source
Linear voltage recovery after a breakdown in a pulsed dc system [PDF]
, 2021 Breakdowns may occur in high-voltage applications even in ultrahigh vacuum conditions. Previously, we showed that it is important to pay attention to the post-breakdown voltage recovery in order to limit the appearance of secondary breakdowns associated with the primary ones. This can improve the overall efficiency of the high-voltage device.
arxiv +1 more source
Electromagnetically induced transparency based Rydberg-atom sensor for quantum voltage measurements [PDF]
, 2021 We investigate the Stark shift in Rydberg rubidium atoms through electromagnetically induced transparency for the measurement of direct current (dc) and 60~Hz alternating current (ac) voltages. This technique has direct applications to atom-based measurements of dc and ac voltage and the calibration of voltage instrumentation.
arxiv +1 more source
Power cable stresses caused by transmission line faults in next generation VSC-MMC systems
The Journal of Engineering, 2019 Until today, HVDC systems based on Modular Multilevel Voltage Source Converters (VSC-MMC) have exclusively been realised with cross-linked polyethylene (XLPE) cable transmission in monopolar configuration.
Philipp Tünnerhoff +3 more
doaj +1 more source
High Voltage, 2018 To evaluate and optimise insulation coordination concepts for state of the art high-voltage direct current (HVDC) transmission systems, appropriate test voltage shapes are required for laboratory imitation of occurring stresses.
Claudius Freye +4 more
doaj +1 more source
A Generalized Switched-Capacitor Modular Multilevel Inverter Topology for Multiphase Electrical Machines with Capacitor-Voltage Self-Balancing Capability [PDF]
arXiv, 2022 Recent research on multilevel inverters shows exciting properties, including the potential to generate multiple output voltages and integrated voltage boosting. However, most presented inverter topologies have a restricted number of output voltage levels and limited output voltage boosting ratio.
arxiv
International Transactions on Electrical Energy Systems, 2022 With the advent of smart grid theory, distribution networks can include different microgrids (MGs). Therefore, to achieve the desired technical and economic objectives in these networks, there is a need for bilateral coordination between their operators.
Mohammad Hosein Sabzalian +4 more
doaj +1 more source
The Voltage Sensor in Voltage-Dependent Ion Channels [PDF]
Physiological Reviews, 2000 In voltage-dependent Na, K, or Ca channels, the probability of opening is modified by the membrane potential. This is achieved through a voltage sensor that detects the voltage and transfers its energy to the pore to control its gate. We present here the theoretical basis of the energy coupling between the electric field and the voltage, which allows ...
openaire +3 more sources
On MOSFET Threshold Voltage Extraction Over the Full Range of Drain Voltage Based on Gm/ID [PDF]
arXiv, 2021 A MOSFET threshold voltage extraction method covering the entire range of drain-to-source voltage, from linear to saturation modes, is presented. Transconductance-to-current ratio is obtained from MOSFET transfer characteristics measured at low to high drain voltage.
arxiv