Results 331 to 340 of about 1,045,600 (368)

Harmonic Distortion Evaluation of CEA's FAB Feeder

Energies and Quality Journal, 2019
This paper presents a harmonic analysis performed an urban feeder named FAB located in Macapá City whose objective is to evaluate how a set of nonlinear loads impact in the voltage harmonic distortion rate of this network. The harmonic currents of the nonlinear loads were obtained by one-month measurement campaign carried out in this feeder during July,
null T. M. Soares, null J. L. Tostes, null L. C. dos Santos Junior, null M. L. de Lima Tostes, null U. H. Bezerra, null D. C. Mendes   +5 more
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Limits of Harmonic Distortion

2001
Having run a harmonic study, bus harmonic voltages, line harmonic currents and voltage and current distortion factors are calculated and compared to limits set by standards. If the limits are exceeded, various filtering alternatives are simulated and examined to resolve resonance problems and bring the system into compliance with known standards.
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Decomposition of Harmonically Distorted Chirps into their Harmonic Components

2009 IEEE 13th Digital Signal Processing Workshop and 5th IEEE Signal Processing Education Workshop, 2009
Two techniques to isolate the harmonic components of non-linear harmonically distorted chirps are presented. Harmonically distorted chirps occur among other fields in the Vibroseis technique in seismic exploration. The harmonic components are theoretically and practically important as their spectral ratios to the fundamental component are used for ...
Christos Saragiotis, Peter Scholtz
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Harmonic distortion. Genesis to revelation?

Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference, 2002
With the recent developments in personal computers and their widespread use in exploiting the Internet, there has been a resulting demand for high speed communications. The use of conventional telephone networks poses a significant problem for error-free data transmission by modem.
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Harmonic distortion in electret microphones

Applied Acoustics, 1991
Abstract Using the harmonic-balance method, an approximate solution for the differential equation describing the relationship between the output voltage of the electret microphone and its air-gap thickness is obtained. Closed form expressions are derived for the amplitudes and phases of the fundamental, second- and third-harmonic components of the ...
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Harmonic distortion in commercial establishments

IEE Colloquium on Sources and Effects of Harmonic Distortion in Power Systems, 1997
Many commercial systems are private 400 V supplies. A large number of distorting loads have been connected at these sites with the result that the source current waveform may be distorted. Consequently, excessive harmonic voltages may be generated. Other commercial supplies may be connected to systems which contain excessive distortion. This problem is
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Second Harmonic Distortion in Horns

1994
Figure 44 presents solutions to the following equation: $$ \% 2ndharmonic = 1.76 \sqrt {{{I_T}}} (f/{f_c}) \times {10^{{ - 2}}} $$ (44.1) where IT is the acoustic intensity at the horn throat in watts per square meter, fc is the nominal cutoff frequency of the horn, and f is the driving frequency.
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Harmonic Bandpass Distortion of a Chebyshev Nonlinearity

IEEE Transactions on Communications, 1976
Harmonic distortion imparted to the sidebands of an amplitude-modulated carrier by a system described by a Chebyshev series is evaluated. Sideband distortion increases with modulation depth but decreases with low carrier level, when even-harmonic contributions disappear.
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Application of steady-state harmonic distortion limits to the time-varying measured harmonic distortions

IEEE Power Engineering Society Summer Meeting,, 2003
Harmonic distortion limits recommended by the majority of known standards are for steady-state harmonics. The harmonic distortions measured in the field, however, vary with time. How to apply the steady-state limits to the actual measured harmonics has been a concern for verifying compliance to harmonic standards.
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Harmonic Distortion Reference Structure for Contact Induced Harmonics

2023 International Symposium on Electromagnetic Compatibility – EMC Europe, 2023
Leonhard Petzel, Rui Mi, David Pommerenke, Steffen Holland   +3 more
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