Results 11 to 20 of about 160,807 (226)
Energies, 2022 Differential protection normally detects short circuits and ground faults in the windings of a power transformer and its terminals. Inter-turn faults refer to flashovers among the electrodes that arise only in a similar type of physical winding.
Muhammad Sheryar +6 more
doaj +1 more source
Disclination in Lorentz Space-Time [PDF]
, 2000 The disclination in Lorentz space-time is studied in detail by means of topological properties of $\phi $-mapping. It is found the space-time disclination can be described in term of a Dirac spinor. The size of the disclination, which is proved to be the
Brandenberger B +12 more
core +2 more sources
Electromagnetic-force calculation and fault diagnosis of shell transformer under inter-turn short circuit [PDF]
AIP AdvancesAiming at the electromagnetic distribution law, winding mechanical response characteristics, and degree diagnosis of inter-turn short circuit fault locations of shell-type transformers under inter-turn short circuits, the research idea of “simulation ...
Duanjiao Li +5 more
doaj +1 more source
IEEE Access, 2019 This paper investigated the influence of paper-wrapped on the deposition of sulfur corrosion on the insulation winding (paper-wrapped copper conductor) in oil-immersed insulation containing dibenzyl disulfide (DBDS).
Si-Hang Gao, Li-Jun Yang, Dong Ding
doaj +1 more source
Evolution and Modern Approaches for Thermal Analysis of Electrical Machines [PDF]
, 2009 In this paper, the authors present an extended survey on the evolution and the modern approaches in the thermal analysis of electrical machines. The improvements and the new techniques proposed in the last decade are analyzed in depth and compared in ...
Boglietti, Aldo +5 more
core +1 more source
Line-start permanent-magnet motor single-phase steady-state performance analysis [PDF]
, 2003 This paper describes an efficient calculating procedure for the steady-state operation of a single-phase line-start capacitor-run permanent-magnet motor.
Cossar, C. +6 more
core +1 more source
A novel dual-stator hybrid excited synchronous wind generator [PDF]
, 2009 This paper presents a novel dual-stator hybrid excited synchronous wind generator and describes its structural features and operation principle. The no-load magnetic fields with different field currents are computed by 3-D finite-element method.
Chengfeng, Y. +5 more
core +1 more source
Joint Entanglement of Topology and Polarization Enables Error-Protected Quantum Registers [PDF]
, 2018 Linear-optical systems can implement photonic quantum walks that simulate systems with nontrivial topological properties. Here, such photonic walks are used to jointly entangle polarization and winding number.
Osawa, Shuto +2 more
core +2 more sources
Permanent-magnet brushless machines with unequal tooth widths and similar slot and pole numbers [PDF]
, 2005 This paper presents a comparative study of three-phase permanent-magnet brushless machines in which the slot and pole numbers are similar, with reference to conventional brushless dc machines in which the ratio of the slot number to pole number is ...
Howe, D., Ishak, D., Zhu, Z.Q.
core +1 more source
IEEE Access, 2018 We study the influence of the damper bar pitch, the stator slot skewing degree, and the damper bar number per pole on the no-load voltage waveform harmonic distortion factor (HDF) and the damper winding heat of a tubular hydro generator.
Zhen-Nan Fan +7 more
doaj +1 more source