Results 11 to 20 of about 62,037 (289)
Identifying Prognostic Indicators for Electrical Treeing in Solid Insulation through PD Analysis [PDF]
, 1998 This paper presents early results from an experimental study of electrical treeing on commercially available pre-formed silicone samples. A needle-plane test arrangement was set up using hypodermic needles.
Diehl, M. +3 more
core +5 more sources
Detection of insulation defects in the wire through measuring changes in its capacitance [PDF]
, 2018 The paper describes the technique to detect local wire insulation defects through measuring the wire capacitance. The operating principle of the CAP-10 device is explained.
Ryumkin, A. V. +1 more
core +1 more source
Modelling of Electrical Discharge Processes for Optimization of Corona-Protection System of High Voltage Rotating Machines Insulation [PDF]
Problems of the Regional Energetics, 2020 The aim of this work is to study the influence of technological defects in stator windings electri-cal insulation system on the inception of partial discharges in the stator slot of air-cooled electric rotating machines.
Andreev A.M. +5 more
doaj +1 more source
Partial Lattice Defects in Higher-Order Topological Insulators [PDF]
Physical Review Letters, 2019 Nonzero weak topological indices are thought to be a necessary condition to bind a single helical mode to lattice dislocations. In this work we show that higher-order topological insulators (HOTIs) can, in fact, host a single helical mode along screw or edge dislocations (including step edges) in the absence of weak topological indices.
Queiroz, Raquel +4 more
openaire +3 more sources
Determination of sensitivity for in-process control of cable product insulation [PDF]
, 2015 This article presents current methods of cable insulation control. The new method which allows to improve reliability of cable insulation control was offered.
Redko, Lyudmila Anatolevna +3 more
core +1 more source
Applied Sciences, 2020 Insulation defects that occur in gas-insulated switchgear (GIS), which is one of the most important types of equipment in the power grid, can lead to serious accidents.
Weijia Yao +4 more
doaj +1 more source
Zhongguo dianli, 2020 In order to determine the possible damage to the cable insulation structure by deformed corrugated aluminum sheath of HVDC cable and its influence on the electrical performance during operation, thermal expansion test and radial pressure test were ...
Hongliang ZHANG +6 more
doaj +1 more source
Electrical engineering & Electromechanics, 2019 This paper is devoted to non- destructive technological monitoring of defects of insulation of enameled wires with poliimid polymer. The authors present a statistical method for processing, comparison and analysis of outcomes of measurements of ...
A. G. Gurin +5 more
doaj +1 more source
ONLINE TECHNOLOGICAL MONITORING OF INSULATION DEFECTS IN ENAMELED WIRES
Electrical engineering & Electromechanics, 2017 In this paper the authors used non-destructive technological monitoring of defects insulation enameled wire with poliimid polymer. The paper is devoted to the statistical method for processing, comparison and analysis of results of measurements of ...
V. M. Zolotaryov +4 more
doaj +1 more source
Hydrogen‐Related Defects in Insulators
physica status solidi (a), 2021 It is shown that the introduction of hydrogen by a dc H plasma treatment leads to the appearance of negatively charged defects in amorphous Al2O3 and SiO2 and positively charged defects in amorphous HfO2. The concentration of the defects increases with increasing temperature of the dc H plasma treatment between 50 and 100 °C, and the defects appear in ...
openaire +1 more source