Results 1 to 10 of about 7,987,748 (370)

Harmonic voltage measurement error of the capacitor voltage transformer. [PDF]

open access: yesPLoS ONE, 2018
This paper explores the mechanism for the harmonic voltage measurement error (HVME) of a capacitor voltage transformer (CVT) in a comprehensive way and develops a practical error correction method to improve the harmonic measurement performance of a CVT.
Jian Le, Hao Zhang, Chao Gao, Qian Zhou
doaj   +6 more sources

Self-Calibration Sensor for Contactless Voltage Measurement Based on Dynamic Capacitance [PDF]

open access: yesSensors, 2023
Noncontact voltage measurement has the advantages of simple handling, high construction safety, and not being affected by line insulation. However, in practical measurement of noncontact voltage, sensor gain is affected by wire diameter, wire insulation ...
Chunguang Suo   +5 more
doaj   +3 more sources

Transmission Line Voltage Measurement Utilizing a Calibrated Suspension Grounding Voltage Sensor [PDF]

open access: yesSensors, 2023
The accurate voltage measurement of distribution networks is of great significance in power dispatching and fault diagnosis. Voltage sensors based on the spatial electric field effect do not require grounding, which provides the possibility for the ...
Rujin Huang   +5 more
doaj   +2 more sources

Electrical Equivalent Circuit of Multi-Tips Pulsed Corona Discharge Reactor [PDF]

open access: yesMATEC Web of Conferences, 2021
In this work, an electrical model equivalent to the corona discharge reactor has been proposed in a multitips plan configuration, in dry air at atmospheric pressure.
Saber Karim   +3 more
doaj   +1 more source

Diagnostics of High Water Content Paper-Oil Transformer Insulation Based on the Temperature and Frequency Dependencies of the Loss Tangent

open access: yesEnergies, 2022
The aim of the work was to prepare and test a paper-oil insulation system according to the recommendations of CIGRE (Conseil International des Grands Réseaux Électriques) with the parameters X = 50% and Y = 30%.
Pawel Zukowski   +3 more
doaj   +1 more source

An Accurate Method for Leakage Inductance Calculation of Shell-Type Multi Core-Segment Transformers With Circular Windings

open access: yesIEEE Access, 2021
The leakage field in shell-type transformers is strongly affected by the boundary conditions introduced by the core walls and thus the effect of the core should be considered properly in the leakage inductance calculation. In this paper, a new method for
Morteza Eslamian   +2 more
doaj   +1 more source

An Accurate Analytical Method for Leakage Inductance Calculation of Shell-Type Transformers With Rectangular Windings

open access: yesIEEE Access, 2021
This paper presents an accurate analytical method for calculating the leakage inductance of shell-type E-core transformers with rectangular windings. For this purpose, first, an expression for calculating the leakage inductance per unit length inside the
Morteza Eslamian   +2 more
doaj   +1 more source

Extended SINDICOMP: Characterizing MV Voltage Transformers with Sine Waves

open access: yesEnergies, 2021
The paper presents a method for the frequency characterization of voltage transformers (VTs) for medium voltage (MV) grids which involves only sine waves.
Gabriella Crotti   +4 more
doaj   +1 more source

New Smart Sensor for Voltage Unbalance Measurements in Electrical Power Systems

open access: yesSensors, 2022
This paper deals with voltage unbalances and how they can be quantified according to the standards. Firstly, a comparison between the different unbalance voltage factors is conducted in order to remark on their divergences.
Santiago Bogarra   +2 more
doaj   +1 more source

Inverter Temperature Monitoring of Cordless Tool Motor Drives

open access: yesIEEE Open Journal of the Industrial Electronics Society, 2023
Nowadays, with the recent advances in battery technologies, cordless tools are gaining more popularity and many manufacturers have enhanced their series of autonomous devices with powerful instruments like circular saws and punches.
Anton Dianov
doaj   +1 more source

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