Effect of unshielded and shielded Rogowski coil sensor performance for partial discharge measurement

This paper presents the analysis of constructed shielded Rogowski coil (RC) sensor for partial discharge (PD) measurement. The RC sensor with rectangular shape has been designed in order to compare the performance unshielded and shielded type in term of sensitivity. Solidwork 3D CAD software has been used to design the core of RC sensor with their casing. Marker Board Replicator 2X 3D printer is used to print the design. An experiment has been conducted to evaluate the difference performance of unshielded and shielded RC sensor with amplitude range PD signal between 1 V to 5 V respectively and the frequency is fixed to 1 MHz. The difference terminating resistance has been installed to the RC sensor too. From the experiment, the percentage average losses of unshielded and shielded RC sensor from 1 V to 5 V at 14.48 % is achieved. The low level of PD signal is challenging to be detected by the RC sensor. The terminating resistance of the coil is a part of parameter which can improve the performance of RC sensor.

[1]  Muzamir Isa,et al.  Three-Point Technique for Partial Discharge Location on XLPE Armoured Underground Cable , 2015 .

[2]  Zhousheng Zhang,et al.  Rogowski air coil sensor technique for on-line partial discharge measurement of power cables , 2009 .

[3]  Hans Edin,et al.  High-Frequency Model of the Rogowski Coil With a Small Number of Turns , 2007, IEEE Transactions on Instrumentation and Measurement.

[4]  Matti Lehtonen,et al.  Effect of geometrical parameters on high frequency performance of Rogowski coil for partial discharge measurements , 2014 .

[5]  P. Pakonen,et al.  Characteristics of partial discharges caused by trees in contact with covered conductor lines , 2008, IEEE Transactions on Dielectrics and Electrical Insulation.

[6]  P. Mulroy,et al.  On-line partial discharge monitoring system for distribution networks , 2012, 2012 IEEE International Conference on Condition Monitoring and Diagnosis.

[7]  Mohammad Hamed Samimi,et al.  The Rogowski Coil Principles and Applications: A Review , 2015, IEEE Sensors Journal.

[8]  M. Lehtonen,et al.  Modeling and experimental verification of on-line PD detection in MV covered-conductor overhead networks , 2010, IEEE Transactions on Dielectrics and Electrical Insulation.

[9]  Syed Idris Syed Hassan,et al.  Comparison between Parameter of Single Core Unarmoured Aluminium Conductor 6.35/11 kV Underground Cable for Partial Discharge Measurement Using EMTP-ATP Software , 2015 .

[10]  Lauri Kutt,et al.  Magnetic sensor coil shape geometry and bandwidth assessment , 2011, 2011 7th International Conference-Workshop Compatibility and Power Electronics (CPE).

[11]  H. Heydari,et al.  Mutual inductances comparison in Rogowski coil with circular and rectangular cross-sections and its improvement , 2008, 2008 3rd IEEE Conference on Industrial Electronics and Applications.

[12]  M. Argüeso,et al.  Implementation of a Rogowski coil for the measurement of partial discharges , 2005 .

[13]  J. Sanz,et al.  Identification of parameters in a Rogowski coil used for the measurement of partial discharges , 2007, 2007 IEEE Instrumentation & Measurement Technology Conference IMTC 2007.

[14]  M. Lehtonen,et al.  Parameters Identification and Modeling of High-Frequency Current Transducer for Partial Discharge Measurements , 2013, IEEE Sensors Journal.