Calibration of a digital current transformer measuring bridge: Metrological challenges and uncertainty contributions

G Frigo, M Agustoni - Metrology, 2021 - mdpi.com
In this paper, we consider the calibration of measuring bridges for non-conventional
instrument transformers with digital output. In this context, the main challenge is represented …

Low-Power Voltage Transformer Smart Frequency Modeling and Output Prediction up to 2.5 kHz, Using Sinc-Response Approach

A Ghaderi, A Mingotti, L Peretto, R Tinarelli - Sensors, 2020 - mdpi.com
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 …

Traceability of low-power voltage transformer for medium voltage application

G Pasini, L Peretto, P Roccato, A Sardi… - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
In this paper, the measuring and calibration techniques useful for ensuring the traceability of
nonconventional voltage transformer (VT), used in ac power plant up to 52 kV, are described …

Application of Optical Current Transformers in Digital Substations

IU Rian - 2018 - ntnuopen.ntnu.no
In this master's thesis optical current transformers are studied in order to evaluate whether
such sensors are suitable for application in digital transmission substations. The analysis …

Procedure for the assessment of metrological characteristics of window-type current transformers in three-phase power systems

L Peretto, R Tinarelli - 2014 IEEE International Workshop on …, 2014 - ieeexplore.ieee.org
Window-type current transformers are widely used in medium voltage switchboards for
measuring the current flowing in the cables entering the board itself. Due to their operating …

Design and Implementation of New Measurement Models and Procedures for Characterization and Diagnosis of Electrical Assets

A Ghaderi - 2021 - amsdottorato.unibo.it
The measurement is an essential procedure in power networks for both network stability,
and diagnosis purposes. This work is an effort to confront the challenges in power networks …

Bruk av ikke-konvensjonelle måletransformatorer

S Fallmyr - 2015 - ntnuopen.ntnu.no
I denne rapporten er det gjort en vurdering om ikke-konvensjonelle instrumenterings-
transformatorer kan brukes i kraftverk. Konvensjonell teknologi er sammenlignet med ikke …

[PDF][PDF] Fast Calibration Procedure for Low Power Voltage Transformers up to 2.5 kHz using Sinc

Instrument Transformers in power network for measurement purposes requires studies on
their characterization and on the effect of different quantities on their accuracy. In this paper …

[引用][C] High accuracy measurement capabilities integrated into reclosers for MV power networks

L Perretto, N Uzelac, B Kerr, E Scala - Proc. of the CIRED, 2015