Secondary earth faults occur frequently in power distribution networks under harsh weather conditions. Owing to its characteristics, a secondary earth fault is typically hidden within the transient of the first fault.
Shu Zhang +3 more
doaj +1 more source
Fault Diagnosis of Induction Motor Based on a Novel Intelligent Framework and Transient Current Signals [PDF]
This paper deals with fault diagnosis of induction motor containing common faults by using a novel intelligent framework and transient stator current signals. This framework consists of a Fourier-Bessel (FB) expansion for analyzing the transient signals,
Tran, V.T. +8 more
core +1 more source
Control Strategies for Open-End Winding Drives Operating in the Flux-Weakening Region [PDF]
This paper presents and compares control strategies for three-phase open-end winding drives operating in the flux-weakening region. A six-leg inverter with a single dc-link is associated with the machine in order to use a single energy source.
KESTELYN, Xavier +4 more
core +1 more source
An Application to Transient Current Signal based Induction Motor Fault Diagnosis of Fourier-Bessel Expansion and Simplified Fuzzy ARTMAP [PDF]
The start-up transient signals have been widely used for fault diagnosis of induction motor because they can reveal early defects in the development process, which are not easily detected with the signals in the steady state operation. However, transient
Ball, Andrew +4 more
core +1 more source
Transient equivalent circuit when single-phase grounding.
U0 Represents an equivalent zero-sequence voltage source. ID Represents the transient ground current. RL Represents active power loss resistance. L Represents the inductance of the arc suppression coil. IL Represents transient inductive current.
Feng Zhao (90241) +4 more
core +1 more source
Fast and accurate fault detection is important for the long term, stable operation of the distribution network. For the resonant grounding system, the fault signal features extraction difficulties, and the existing detection method’s accuracy is not high.
Xianglun Nie +6 more
doaj +1 more source
Computation accuracies of boundary element method and finite element method in transient eddy current analysis [PDF]
The computation accuracies of the boundary-element method (BEM) and finite-element method (FEM) in transient eddy-current problems are compared by using a slot-embedded conductor model and a diffusion model that can be solved theoretically. For computing
Naito, T. +3 more
core +1 more source
Research of transformers zero-sequence differential current protection. [PDF]
The master‘s thesis studies the operation of transformer zero-sequence differential current protection in case of different transformer ground faults.
Šiuika, Karolis,
core +1 more source
Fusion fault line selection method of small current grounding fault based on VMD
At present, the fault line selection method of coal mine distribution network has the problem of fault line selection failure when the relevant fault features are not obvious.
SUN Kongming +5 more
doaj +1 more source
Functional modulation of the transient outward current Ito by KCNE beta-subunits and regional distribution in human non-failing and failing hearts [PDF]
Objectives: The function of Kv4.3 (KCND3) channels, which underlie the transient outward current I,, in human heart, can be modulated by several accessory subunits such as KChIP2 and KCNE1-KCNE5.
Cotella, D. +8 more
core +1 more source

