نتایج جستجو برای: leakage reactance
تعداد نتایج: 31925 فیلتر نتایج به سال:
Universidad Autónoma de Zacatecas 13.1 Equivalent Circuit ........................................................... 13-1 13.2 Resistance ......................................................................... 13-2 Frequency Effect . Temperature Effect . Spiraling and Bundle Conductor Effect 13.3 Current-Carrying Capacity (Ampacity) ........................ 13-5 13.4 Inductance and Inductive...
An AC to DC voltage rectifier and its respective regulator were designed and integrated on a 0.25μm CMOS process. Its input impedance was measured along with the regulated DC output. Input impedance of a series of rectangular coil microstrip antenna on FR4 PCB with outer dimension of 78mm x 41mm was measured. The positive reactance of the antenna was matched at resonance with negative reactance...
Stem and electrode electric impedance at 14 frequencies were monitored during cold acclimation of alfalfa (Medicago sativa L.) and birdsfoot trefoil (Lotus corniculatus L.). Cold acclimation significantly increased high frequency (e.g. 1.11 megahertz) resistance and reactance but not low frequency (49 hertz) resistance and reactance of both species. High frequency resistance of living stems was...
During the current COVID-19 pandemic, religious gatherings have become intense hot spots for spread of virus. In this research, we focus on religiosity communities to examine whether helps or hinders adherence mitigation policies such as shelter-in-place directives. Prior research has made opposing predictions influence religiosity. One stream predicts greater because rule-abiding norms and alt...
A new type o f a control led ac t ive reactance based on a h i g h frequency resonant inverter with bidirect ional swi tches i s proposed and examined. I t s important advantages over o ther approaches are: lower energy stored in react ive elements and lower harmonic distort ion.
This paper proposes a new scheme of induction motor parameter estimation using Genetic algorithm (GA) for condition monitoring. The flux linkage model and torque model of an induction motor is adapted to the estimation. The scheme is developed to obtain all the motor parameters: stator and rotor resistance, stator and rotor leaking reactance and magnetizing reactance, which paves the way to dia...
We study moving-target defense (MTD) that actively perturbs transmission line reactances to thwart stealthy false data injection (FDI) attacks against state estimation in a power grid. Prior work on this topic has proposed MTD based on randomly selected reactance perturbations, but these perturbations cannot guarantee effective attack detection. To address the issue, we present formal design cr...
The possibility of using non-Foster circuit to expand the bandwidth of a monopole antenna is investigated theoretically. Beginning with an inductor-loaded monopole antenna resonating at different frequencies by changing the value of the loaded inductor, we show that a frequency-dependent inductor is needed to enhance the bandwidth of the monopole antenna. The curve for the reactance of the freq...
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