Results 71 to 80 of about 1,861 (307)
Bridging in contaminated transformer oil under DC and AC electric field
, 2013 One of the key components in high voltage transmission and distribution systems are power transformers and their consistent operation is of utmost importance to energy utilities and users.
Wilson, G +9 more
core +1 more source
Polymorphic Superparaelectric Engineering Boosting Energy Storage Capacity in BaTiO3‐Based Ceramics
Advanced Science, EarlyView.Herein, Ca2+ incorporation promotes the coexistence of CaTiO3‐/BaTiO3‐derived paraferroelectric states, stabilizing cubic‐orthorhombic‐tetragonal polymorphic superparaelectric phases. This minimizes polarization energy barriers, facilitating full polarization saturation without compromising efficiency.
Pan Liu +9 more
wiley +1 more source
, 2009 Electrical treeing is one of the main reasons for long term degradation of polymeric materials used in high voltage ac applications. In this paper we report on an investigation of electrical tree growth characteristics in XLPE samples from a commercial ...
Tham, C H, Chen, George
core
Stroboscopic Imaging of Streamers Propagating on Dielectric Surfaces
, 2014 Solid insulation materials in gas insulated medium (MV) and high voltage (HV) equipment often act as weak elements in terms of electric breakdown, for instance because the insulator surface may facilitate propagation of discharges.
Trienekens, DJM Dirk +15 more
core +1 more source
An investigation into the dynamics of partial discharge propagation in mineral oil based nanofluids [PDF]
, 2014 Recent studies present a model which assumes that conductive nanoparticles can reduce the speed of the positive streamer propagation in mineral oil due to electron trapping at the particle surface. Time resolved partial discharge measurements can be used
Peter H.F. Morshuis +7 more
core +1 more source
Advanced Science, EarlyView.A nano‐plasma device enables watt‐level on‐chip THz generation through picosecond switching triggered by secondary electron emission avalanche. An ultra‐dense electron sheet initiates nano‐plasma formation within a ∼100 nm gap, driving rapid energy release into an integrated resonator.
Guangyu Sun +4 more
wiley +1 more source
Degradation processes of voids in solid dielectrics under AC applied fields
, 2013 This Thesis is concerned with an experimental study into the degradation processes that occur when voids in solid dielectric materials experience high applied electric fields.
Bai, Tianyu
core
Spatially Selective Solvation Chemistry by Local Charge Enrichment for Stable Potassium‐Metal Anodes
Advanced Science, EarlyView.A MoC/NC functional intermediate medium preferentially interacts with KFSI to reconstruct the interfacial solvation structure and form a KF‐rich inorganic SEI. The synergistic integration of the electronically insulating SEI and MoC/NC suppresses electron tunneling, enables fast and balanced K+/electron transport, and promotes uniform K deposition for ...
Lu‐Kang Zhao +9 more
wiley +1 more source
Measurement Science ReviewPlasma discharges under atmospheric pressure can be used to modify the electrical properties of metallic and dielectric surfaces. The aim of such a modification is to achieve an improvement in the characteristic parameters of the surface, for example in ...
Pernica Roman, Klima Miloš, Fiala Pavel
doaj +1 more source