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The Phase Angle of Current Transformers

Transactions of the American Institute of Electrical Engineers, 1915
A method of testing the phase angle of current transformers by comparing readings obtained on a wattmeter whose current circuit is first connected to receive a part of the primary current (the remainder of the primary current passing in shunt through resistance) and then connected to the secondary circuit; the potential circuit is supplied from the ...
openaire   +2 more sources

MLD's and the Phase Angle, Alpha

The Journal of the Acoustical Society of America, 1968
This Letter describes two experiments designed to discover the effect of the phase angle, α (the angle between a narrow-band masker and a tonal signal), on binaural detection, and offers an explanation of why they failed to reveal any effect.
Lloyd A. Jeffress, Dennis McFadden
openaire   +2 more sources

Assessment of adult malnutrition and prognosis with bioelectrical impedance analysis: phase angle and impedance ratio

Current opinion in clinical nutrition and metabolic care, 2017
Purpose of review Malnutrition affects prognosis in many groups of patients. Although screening tools are available to identify adults at risk for poor nutritional status, a need exists to improve the assessment of malnutrition by identifying the loss of
H. Lukaski, U. Kyle, J. Kondrup
semanticscholar   +1 more source

Progress in phase angle thermography

Review of Scientific Instruments, 2003
Phase angle thermography is basically spatially multiplexed photothermal radiometry. It provides images for remote detection and imaging of damage. For energy deposition one can use external heat sources (e.g., light or convective heating) or internal heat generation (e.g., electric current, microwaves, eddy current, or elastic wave).
G. Riegert   +3 more
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Phase angle as a marker for sarcopenia in cirrhosis

Clinical Nutrition ESPEN, 2019
In patients with cirrhosis nutritional disturbances can progress to sarcopenia, worsening the disease prognosis. Phase angle (PA) may be a useful marker for sarcopenia in this clinical population reflecting the cellular integrity level. This cross-sectional and prospective study evaluated the association between low PA values and clinical/nutritional ...
Lucivalda Pereira Magalhães de Oliveira   +5 more
openaire   +3 more sources

Field Orientation Based on Current Amplitude and Phase Angle Control for Wireless Power Transfer

IEEE transactions on industrial electronics (1982. Print), 2018
The low coupling coefficient between the transmitter and receiver is the major constraint of a wireless power transfer (WPT) system. Although some approaches, such as increasing the quality factor and achieving precise impedance matching, can reduce the ...
Qi Zhu   +4 more
semanticscholar   +1 more source

Optimal Design and Control Implementation of UPQC Based on Variable Phase Angle Control Method

IEEE Transactions on Industrial Informatics, 2018
As one of the most promising solutions to mitigate the power quality (PQ) problem of the modern power systems, the unified PQ conditioner (UPQC) draws considerable attentions.
Jian Ye, H. Gooi, Fengjiang Wu
semanticscholar   +1 more source

Phase-Angle Control of System Interconnections

Transactions of the American Institute of Electrical Engineers, 1939
This paper describes an application of a new method of automatic control between two interconnected power systems, whereby greater utilization of the interconnection capacity is secured. As the stable limit of the interchange between systems is affected by variations in the magnitude and location of intermediate loads on the respective systems, direct ...
Pierce, Hamilton
openaire   +3 more sources

A New Type-2 PLL Based on Unit Delay Phase Angle Error Compensation During the Frequency Ramp

IEEE Transactions on Power Systems, 2019
This letter introduces a unit delay compensation scheme for Type-2 phase locked loop (Type-2 PLL) to eliminate the steady state phase angle error during the frequency ramp. The proposed PLL (ZPLL) uses an adaptive delayed signal cancellation (DSC) filter,
Hany A. Hamed, M. E. El Moursi
semanticscholar   +1 more source

Assessment on the Behavior of Harmonic Phase Angles

IEEE Latin America Transactions, 2021
Existing methodologies and protocols for characterizing the harmonic components of voltage and current from digital measurements only consider the measurement of the amplitudes of these quantities. Thus, the phase angles of the harmonic components, required for some types of analysis in electrical systems, are simply ignored.
GUILHERME LEAL XAVIER   +1 more
openaire   +2 more sources

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