Results 21 to 30 of about 33,274 (252)
The effect of AM noise on correlation phase noise measurements [PDF]
, 2006 We analyze the phase-noise measurement methods in which correlation and averaging is used to reject the background noise of the instrument. All the known methods make use of a mixer, used either as a saturated phase detector or as a linear synchronous ...
Boudot, Rodolphe, Rubiola, Enrico
core +3 more sources
Ultrasonic partial discharge monitoring method on instrument transformers [PDF]
Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2012 Sonic and ultrasonic partial discharge monitoring have been applied since the early days of these phenomena monitoring. Modern measurement and partial discharge acoustic (ultrasonic and sonic) monitoring method has been rapidly evolving as a result of ...
Kartalović Nenad +5 more
doaj +1 more source
Sensors, 2020 The aim of this work is to assess whether actual distorted conditions of the network are really affecting the accuracy of inductive current transformers.
Alessandro Mingotti +4 more
doaj +1 more source
Energies, 2023 In real-world scenarios, deviations in the frequency response of instrumentation transformers can lead to distorted harmonic measurements, highlighting the critical role harmonic measurement plays in assessing power quality.
Denise Fonseca Resende +3 more
doaj +1 more source
A Method for the Measurement of Digitizers’ Absolute Phase Error [PDF]
, 2018 A lot of engineering applications, from telecommunications to power systems, require accurate measurement of phase angles. Some of them, like synchrophasor measurement and calibration of instrument transformers with digital output, in order to reach ...
Crotti, G. +6 more
core +1 more source
Determination of Core Losses in Open-Core Power Voltage Transformers
IEEE Access, 2018 Power voltage transformers (PVTs) are becoming increasingly present in different substation solutions on a world scale. Such units that are based on the open-core concept introduce several advantages in terms of transformer performance and reliability ...
Igor Ziger, Bojan Trkulja, Zeljko Stih
doaj +1 more source
Energies, 2023 Instrument transformers are largely used to measure voltages and currents in public electricity networks. Their performance is essential for Power Quality measurements. Tests and procedures to estimate the effect of single influence factors are performed
Mohamed Agazar +2 more
doaj +1 more source
Decomposition of multiport elements in a revised multibond graph notation [PDF]
, 1984 Decomposition rules are derived for multiport-transformers, -resistors, -storage elements and -gyrators into 1- and 2-port elements, junctions and bonds.
Breedveld, Peter C.
core +2 more sources
Sensors, 2020 The instrument transformers scenario is moving towards the adoption of a new generation of low-power instrument transformers. This disruptive change also requires that the modeling, characterization, and testing of those devices must be improved ...
Abbas Ghaderi +3 more
doaj +1 more source
Novel and Simplified Procedure to Test Immunity of Low-Power Voltage Transformers
Sensors, 2022 International technical committees put considerable efforts into the writing process of standards. They always try to find a tradeoff between the rigorous scientific requirements and the practical needs of manufacturers and final users.
Alessandro Mingotti +2 more
doaj +1 more source