Use of COMTRADE Fault Current Data to Test Inductive Current Transformers

This paper presents a study on the inductive current transformer behaviour when subjected to distorted actual waveforms. Typical tools adopted to deal with such a condition, as the well-known ratio error, phase error, frequency response, etc. not always provide satisfactory results in all the possible operating condition. In addition, Standards lack in detailing which actual distorted waveforms need to be used to test the transformers. To this purpose, the paper introduces both the use of particular actual fault current waveforms and a simple index for testing the performance of the transformer. Preliminary results show its helpfulness when applied to particular waveforms.

[1]  Lorenzo Peretto,et al.  Effect of temperature on the accuracy of inductive current transformers , 2018, 2018 IEEE International Instrumentation and Measurement Technology Conference (I2MTC).

[2]  A. Cataliotti,et al.  Frequency response of Measurement Current Transformers , 2008, 2008 IEEE Instrumentation and Measurement Technology Conference.

[3]  Roberto Ottoboni,et al.  Characterization of Voltage Instrument Transformers Under Nonsinusoidal Conditions Based on the Best Linear Approximation , 2018, IEEE Transactions on Instrumentation and Measurement.

[4]  M. I. Samesima,et al.  Frequency response analysis and modeling of measurement transformers under distorted current and voltage supply , 1991 .

[5]  Ilya Budovsky,et al.  Precision Characterisation of Current Transformers and Shunts in the Audio Frequency Range , 2018, 2018 Conference on Precision Electromagnetic Measurements (CPEM 2018).

[6]  Michal Kaczmarek.  Operation of inductive protective current transformer in condition of distorted current transformation , 2015, 2015 Modern Electric Power Systems (MEPS).

[7]  S. Turner,et al.  Using COMTRADE records to test protective relays , 2012, 2012 65th Annual Conference for Protective Relay Engineers.

[8]  Wang Jin,et al.  Research on the application of the recorded fault data analysis based on COMTRADE standard in electric power load modeling , 2005, 2005 International Power Engineering Conference.

[9]  C. Landi,et al.  Calibration of MV voltage instrument transformer in a wide frequency range , 2017, 2017 IEEE International Instrumentation and Measurement Technology Conference (I2MTC).

[10]  A. Elhaffar,et al.  High Frequency Current Transformer Modeling for Traveling Waves Detection , 2007, 2007 IEEE Power Engineering Society General Meeting.

[11]  Maria Gabriella Masi,et al.  Design and Performance Analysis of a Differential Current Sensor for Power System Applications , 2012, IEEE Transactions on Instrumentation and Measurement.

[12]  D. W. Ackermann.  Current transformer measurements of distorted current waveforms with secondary load impedance , 1999, 1999 IEEE Africon. 5th Africon Conference in Africa (Cat. No.99CH36342).

[13]  A. Cataliotti,et al.  Characterization of Current Transformers in the Presence of Harmonic Distortion , 2008, 2008 IEEE Instrumentation and Measurement Technology Conference.