Calculation of the design parameters current transformers (CTs) is very complex due to their magnetic and thermal properties, complexity structure, different ferromagnetic properties materials nonlinearity B-H curve core material. The secondary output these used for both measurement protection circuits. Therefore, AT's accuracy must be good precise. In this study, transformer modeled as 2D usin...

Based on the transfer-matrix method and the complex wave impedance approach, this unified electrical and optical numerical simulation thoroughly analyzes the impacts of the design parameters on the transport mechanisms and device characteristics of radial p-n junction GaAs/AlxGa1-xAs core-shell nanowire solar cells. By optimizing the doping density of the core and shell, core radius, shell thic...

The shape of metallic nanoparticles used to enhance the performance of thin-film solar cells is described by Gielis' superformula and optimized by an evolutionary algorithm. As a result, we have found a lens-like nanoparticle capable of improving the short circuit current density to 19.93 mA/cm2. Compared with a two-scale nanospherical configuration recently reported to synthesize the merits of...

This article represents the baseline data of the several semiconductor materials used in the model of a CIGS thin film solar cell with an inclusion of ZnS buffer layer. As well, input parameters, contact layer data and operating conditions for CIGS solar cell simulation with ZnS buffer layer have been described. The schematic diagram of photovoltaic solar cell has been depicted. Moreover, the m...

We describe a concept for circuit protection and fault current limitation in DC power systems based on the use of solid-state power switches. The approach could be useful in the increasingly widespread application of DC power distribution networks. During normal operation the power switch is always “on”. During faults, the gate of the solid-state switch is pulse modulated to prevent the circuit...

We present a formula of short-circuit power dissipation for static CMOS logic gates. By representing short-circuit current by a piece-wise linear function and considering a current flowing from input node to output node through gate capacitances, the accuracy is improved significantly. The error of our formula in a CMOS inverter is less than 15% from circuit simulation in most cases of our expe...

Active K+ secretion in isolated posterior midguts of Manduca sexta was studied by measuring the short-circuit current. One aim of this study was to verify the postulate from biochemical reports that the cooperative apical arrangement of a vacuolar-type H+-ATPase (V-ATPase) and a K+/H+ antiporter drive the short-circuit current. Hence, we tested several specific inhibitors of the V-ATPase on the...

Increase in power generation capacity of electric power systems has lead to increase in the fault current level which can exceed the maximum designed short-circuit ratings of the switchgear. All the equipment therefore must have a short-circuit rating capable to withstand this level. Short-circuit currents contain extremely high energy and can damage electrical equipment. Typically, the circuit...