Results 31 to 40 of about 2,076,530 (279)

Improving Harmonic Measurements with Instrument Transformers: a Comparison Among Two Techniques

International Instrumentation and Measurement Technology Conference, 2021
The measurement of harmonics is essential in modern power systems in order to perform distortion level assessment, disturbances source detection and mitigation, etc.
G. D’Avanzo, M. Faifer, C. Landi, C. Laurano, P. S. Letizia, M. Luiso, R. Ottoboni, S. Toscani   +7 more
semanticscholar   +1 more source

Optimised calibration programmes for comparators for instrument transformers

TM. Technisches Messen, 2021
Traditionally, instrument transformers are calibrated using bridges. By definition, bridges use the null method of measurement. The traditional calibration programme for instrument transformer bridges characterise namely this null measurement.
Christian Mester
semanticscholar   +1 more source

Modelling and optimisation of design of non-conventional instrument transformers [PDF]

, 2019
In this paper, we have proposed, modelled and optimised several designs of non-conventional instrument transformer (NCIT) for high voltage overhead transmission lines (400kV).
Bojan Nikolić, British Standards Institution, Lings R, Nikolić B, Nikolić B, Sanowar Khan   +5 more
core   +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., Delle Femine, A., Gallo, D., Giordano, D., Landi, C., Luiso, M., Scaldarella, A.   +6 more
core   +1 more source

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, Ilić Nikola, Milošević Ana, Teslić Dragan, Cakić Nikola, Milosavljević Srđan   +5 more
doaj   +1 more source

Operational diagnostics of high voltage instrument current transformers [PDF]

, 2016
В статті розглянуто пошкоджуваність високовольтних маслонаповнених вимірювальних трансформаторів струму 110 кВ та наведено приклад визначення поточного залишкового ресурсу цих трансформаторів в умовах неповноти початкових даних.
Рубаненко, Олександр Євгенійович
core   +1 more source

Are Inductive Current Transformers Performance Really Affected by Actual Distorted Network Conditions? An Experimental Case Study

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, Lorenzo Peretto, Lorenzo Bartolomei, Diego Cavaliere, Roberto Tinarelli   +4 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, Lorenzo Peretto, Roberto Tinarelli   +2 more
doaj   +1 more source

HTS transformer and its related loss measurement and quench protection techniques [PDF]

, 2008
Recently research and development concerning applications of high temperature superconducting (HTS) transformers have been progressed actively in the world.
Chen, X, Guo, Y, Jin, J, Zhan, Y, Zhu, J
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