نتایج جستجو برای: short circuit

تعداد نتایج: 542195  

2000
M. Couvreur E. De Jaeger P. Goossens A. Robert

The paper starts with an overview of different concepts of short-circuit power: the IEC standard, the effective and the apparent short-circuit power. The short-circuit power is a key concept in characterising the ability of a power system to feed fluctuating loads without excessive flicker levels. Its apparent value (from measurements) is generally higher than its standard value (from calculati...

1998
Akio Hirata Hidetoshi Onodera Keikichi Tamaru

| We present formula of propagation delay for static CMOS logic gates considering short-circuit current and current owing through gate capacitance and using the n-th power law MOSFET model which considers velocity saturation e ects. The short circuit current is represented by a piece-wise linear function, which enables detailed analysis of the transient behavior of a CMOS inverter. We found tha...

1998
S. Nikolaidis A. Chatzigeorgiou

The resistive-capacitive behavior of long interconnects which are driven by CMOS gates is analyzed in this paper. The analysis is based on the π-model of an RC load and is developed for submicron devices. Accurate and analytical expressions for the output voltage waveform, the propagation delay and the short circuit power dissipation are derived by solving the system of differential equations w...

ژورنال: Journal of Railway Research 2015
Mousavi G, ,

Development of the electric networks led to more interconnection in this system, therefore high level of short circuit faults flows in the networks. Many destructive damages such as instability, insulation problems and voltage mitigation can highly play unwanted influences on the system’s equipment. Using appropriate protection devices like high voltage fuses, fast switches, and such devices...

2001
J. M. Torrents

Residual impedance correction in impedance analyzers when using an asymmetrical test fixture needs three reference measurements, usually open circuit, short circuit, and load (meaning an impedance close to the impedance under test). This paper provides an uncertainty estimate for impedance measurements that apply a simple open/short correction in spite of using an asymmetrical test fixture. Exp...

Journal: :journal of nanostructures 2014
m. panahi-kalamuei m. mousavi-kamazani m. salavati-niasari

tellurium (te) nanostructures have been successfully synthesized via a simple hydrothermal methodfrom the reaction of a tecl4 aqueous solution with thioglycolic acid (tga) as a reductant. tga can be easily oxidized to the corresponding disulfide [sch2co2h]2, which in turn can reduce tecl4 to te. the obtained te was characterized by xrd, sem, eds, and drs. the effect of reducing agent on morphol...

Journal: :نشریه دانشکده فنی 0
دکتر حسین محسنی مهندس کاوه نیایش

the behaviour of power transformers is very like to ideal ones. their characteristic matrices can not be determined directly, because the elements of the characteristic matrices are either close to infinity or zero. on the other hand, strong coupling between two transformer windings causes the determinant of these matrices to become zero. therefore, conversion of these matrices to each other wi...

Modeling of frequency-dependent components of power system is often based on a terminal description by an admittance matrix in the frequency domain. One challenge in the extraction of state-space models from such data is to prevent possible error magnification when the model is to be applied in time-domain simulations. The error magnification is a consequence of inaccurate representation of sma...

A. Nemati Kharat L. Fatholahi M. Malekshahi Byranvand,

A  commercial  Ti-Nanoxide  was  deposited  on  In-doped  SnO2 (ITO) polymer  substrates by  tape casting  technique with different thicknesses  (7,  14  and  36μm)  to  be  used  as  photoelectrode  in flexible  dye-sensitized  solar  cells  (DSSCs).  Ruthenium  dye  was adsorbed on each TiO2 film for 24 h. The resulting photoelectrodes were used to form flexible DSSCs in combination with...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید