Setup and Characterisation of Reference Current-to-Voltage Transformers for Wideband Current Transformers Calibration up to 2 kA

Chen, Yeying; Mohns, E.; Badura, Henrik; Rather, P.; Luiso, Mario

doi:10.1109/amps.2019.8897759

Cited by 6 publications

(5 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among them, two phases are connected to the live line and the zero line to collect the characteristic value of circuit voltage. Connect it to the in-phase measurement port with the current transformer, and then the parameter information such as power and power factor can be calculated [15].…”

Section: Design Of Interface Board Of Voltage Transformermentioning

confidence: 99%

Electric appliance analysis and identification device based on Kalman filtering algorithm and KNN algorithm

Zou

2022

2nd International Conference on Artificial Intelligence, Automation, and High-Performance Computing (AIAHPC 2022)

View full text Add to dashboard Cite

This paper designs a device for analyzing and identifying electrical appliances. In this system, STM32F103 single chip microcomputer is used as the main control chip, and HT7038 as the core electric quantity detection device. Connect HT7038 with current transformer and voltage transformer to analyze and calculate circuit parameters such as voltage, current and power, so as to determine the types of electrical appliances connected to the circuit. Kalman filter algorithm and KNN algorithm are used to eliminate the noise of voltage and current and improve the accuracy of identification. The test shows that the system can accurately measure the current and active power characteristic parameters of large and small current electrical appliances, identify the working state of electrical appliances, and display the data on the screen in real time. The system has a wide measuring range, high learning ability and recognition ability, fast response speed and high accuracy.

show abstract

Section: Design Of Interface Board Of Voltage Transformermentioning

confidence: 99%

Electric appliance analysis and identification device based on Kalman filtering algorithm and KNN algorithm

Zou

2022

2nd International Conference on Artificial Intelligence, Automation, and High-Performance Computing (AIAHPC 2022)

View full text Add to dashboard Cite

show abstract

“…are needed when the output of the device under test (DUT) is a sampled value data stream (SVs). The synchronization signals can be obtained by GPS receivers and be transmitted as pulse per second (PPS), IEEE 1588-2008 (PTPv2) and inter-range instrumentation group B (IRIG-B) [12]. An example of generated current waveform is shown in Fig.…”

Section: Reference Systems For It Calibration 421 Reference Setup For...mentioning

confidence: 99%

Assessment of Instrument Transformer Accuracy for Power Quality Measurements in Distribution Grids: Recent Activities and First Results From 19nrm05 It4pq Project

Crotti¹,

Meyer²,

Brom³

et al. 2021

CIRED 2021 - The 26th International Conference and Exhibition on Electricity Distribution

Self Cite

View full text Add to dashboard Cite

Extensive integration of renewables in the electrical energy distribution system is essential for the implementation of "green growth" strategies. However, it contributes to the degradation of the quality of the electrical power, as such power quality (PQ) monitoring holds greater and greater importance. Currently, there are no standards related to the characterisation of the instrument transformers (ITs) for PQ measurements, even if ITs can introduce significant errors in the PQ measurement chain. Therefore, a project has recently funded to investigate gaps in accuracy assessment and characterisation of ITs when used in PQ measurements and to work out specific performance indices, reference measurement systems and test procedures to evaluate the ITs accuracy and uncertainty contributions in PQ measurements. Guidelines and recommendations for the calibration of ITs used in PQ measurements will be provided to the Technical Committee IEC TC 38.

show abstract

“…The evaluation of the frequency response consists of three aspects: the error differences with different current ranges in use, the linearity of the CT at different primary currents and the burdening of the CT. Firstly, measurements of the frequency responses were carried out in the different current ranges of CT200. The CT200 was calibrated with the CT50 [6], which was calibrated before with a set of Fluke A40B [7] and now behaves as the reference. The measured frequency response i(f) and i(f) for the CT200 are displayed by the solid curves (#1 to #4) in Fig.…”

Section: B Characterization Of the C-to-v Transformersmentioning

confidence: 99%

Development of a Wideband Current-to-Voltage Transformer Set for Currents up to 2 kA

Chen

Mohns

Badura

et al. 2020

2020 Conference on Precision Electromagnetic Measurements (CPEM)

View full text Add to dashboard Cite

This paper describes the setup and characterization of a set of wideband Current-to-Voltage (C-to-V) transformers equipped with symmetrical primary windings. The objective is to use the C-to-V transformer set to calibrate digital instrument transformer (IT) accurately at power frequency and within a wider frequency range to cover power quality aspects. The errors of the 50 A and the 200 A reference current transformer (CT) were within ±10 ppm and μrad at 50 Hz. The frequency responses of the two CTs up to 12 kHz were below 0.1 % and 0.2 crad.

show abstract

Setup and Characterisation of Reference Current-to-Voltage Transformers for Wideband Current Transformers Calibration up to 2 kA

Cited by 6 publications

References 2 publications

Electric appliance analysis and identification device based on Kalman filtering algorithm and KNN algorithm

Electric appliance analysis and identification device based on Kalman filtering algorithm and KNN algorithm

Assessment of Instrument Transformer Accuracy for Power Quality Measurements in Distribution Grids: Recent Activities and First Results From 19nrm05 It4pq Project

Development of a Wideband Current-to-Voltage Transformer Set for Currents up to 2 kA

Contact Info

Product

Resources

About