Arijit Basuray - Independent Researcher (original) (raw)

Papers by Arijit Basuray

Extract Partial Discharge signal using wavelet for on-line measurement

ABSTRACT In on-line PD measurement, de-noising Partial Discharge (PD) signal from noisy environme... more ABSTRACT In on-line PD measurement, de-noising Partial Discharge (PD) signal from noisy environment with acceptable performance indices and also with minimum time cost is a major challenge. In this paper a new approach based on wavelet thresholding is proposed for de-noising on-line PD signal. This method first applied on two different type PD signals with White Gaussian Noise (WGN) and simulation results shows that new threshold function give better performance with less computing time as compare to other existing de-noising technique. Finally, a field detected signal is tested and the de-noised signal indicates that method is effective and efficient for this application also

Optimum wavelet bases selection for wavelet based de-noising in partial discharge measurement

ABSTRACT In this paper a new approach based on wavelet transform to select optimum wavelet bases ... more ABSTRACT In this paper a new approach based on wavelet transform to select optimum wavelet bases for on line Partial Discharge (PD) measurement is proposed. Among the previous work correlation coefficient and signal-to-noise ratio is used for evaluating the optimal wavelet bases. In statistical point of view, these two indexes can not give optimum de-noising performance comprehensively. So, in this paper, the concept of energy loss is taken into the account and it is more effective for further analyzing the quality of partial discharge signal. This method is applied on two simulated PD signal and also on field detected signal. From the results it shows that the de-noising procedure can be improved by selecting the optimal wavelet bases.

PSS®E Based Modelling, Simulation and Synchronous Interconnection of Eastern Grid and North-Eastern Regional Grid of India

World Academy of Science, Engineering and Technology, International Journal of Electrical and Computer Engineering, 2017

American Journal of Physics, 2003

We discuss a simple oscillator that is capable of producing chaotic as well as periodic signals. ... more We discuss a simple oscillator that is capable of producing chaotic as well as periodic signals. The circuit design is straightforward and can easily be implemented in a standard undergraduate physics laboratory. The signal generator is suitable for demonstrating how the nonlinearity of the circuit elements can affect the output of an electronic device.

American Journal of Physics, 2005

For a simple oscillator capable of producing chaotic as well as periodic signals we discuss the r... more For a simple oscillator capable of producing chaotic as well as periodic signals we discuss the role of the voltage source used to power the oscillator. This choice may sometimes be crucial to the operation of the oscillator. We have shown experimentally that a poor choice may suppress chaos altogether.

2016 IEEE First International Conference on Control, Measurement and Instrumentation (CMI), 2016

First and foremost, I would like to thank my advisors, Drs. Robert Venette and Stephen Kells, who... more First and foremost, I would like to thank my advisors, Drs. Robert Venette and Stephen Kells, who have supported me at every step of the way. I have really appreciated their encouragement to explore new pathways as well as their efforts to keep me grounded. Their willingness to put other things aside to discuss a 'quick' question has meant that I have never felt isolated during my research. Observing the rigorous standards to which they hold themselves and their students has made me a better scientist. I would also like to thank Dr. Steven Seybold and all the members of his lab for collecting, rearing, shipping, and sorting tens of thousands of their 'extra' beetles. My project would not have been possible without their enthusiastic support. Despite barriers of distance, Steve has been an extraordinarily engaged committee member. Dr. Susan Weller has also been a very supportive member of my committee, and I thank her as well.

APPARATUS AND DEMONSTRATION NOTES: On power supplies used for laboratory demonstration of chaotic electronic oscillators

Study of output characters of pulse transformer with closed magnetic circuit

2017 IEEE 21st International Conference on Pulsed Power (PPC), 2017

Pulse Transformers are used in pulse power generating system when Output Voltage is to be raised,... more Pulse Transformers are used in pulse power generating system when Output Voltage is to be raised, to invert the polarity and provide a DC isolation between discharging source and Load with minimum loss of energy and maximum transformation efficiency. Among different kinds of high-voltage pulse transformers, authors have studied Pulse Transformer with closed magnetic core. Studies are made with pulse transformer with different geometric structure of transformer windings and considerable impacts on the output characteristics has been observed. Authors also studied the effect of auxiliary windings on the pulse shape of a closed magnetic circuit-type high-voltage pulse transformer.

Study of Effects of Repetitive Impulse Voltage on Paper Insulation

2018 2nd International Conference on Power, Energy and Environment: Towards Smart Technology (ICEPE), 2018

Repetitive impulses have become an inherent part of the present power system due to various condi... more Repetitive impulses have become an inherent part of the present power system due to various conditions discussed. Stress due to repetitive pulses on insulator has a detrimental effect and may cause system failures in unfavorable conditions. In this study, various paper insulators used in transformer and motor were tested using recurrent impulse voltages. Breakdown voltages were noted and a design scheme was employed to capture the PD before breakdown using a HFCT and PC oscilloscope. A comparative analysis was done based on its breakdown and on its partial discharge data. DWT and reconstruction was performed on the PD signal and analysed to report the frequency of PD occurring due to recurrent impulse voltages on the afore-mentioned insulating materials.

Study of transformer and motor winding under pulsed power application

Pulsed Power in the form of Recurrent Surge Generator (RSG) can be used for testing various param... more Pulsed Power in the form of Recurrent Surge Generator (RSG) can be used for testing various parameters of Motor or Transformer windings including inter turn, interlayer insulation and many other winding defects. In motor and dry type transformers insulation has many interfaces and undesirable defects and these defects can be exposed under this non destructive testing methodology. With the development of power electronics variable frequency drives (VFD), Dry Type or cast resin Transformers used with PWM Sine wave inverters for solar power are being widely used. Solid insulation system used now-a-days are shifting more and more to high frequency applications. To probe the integrity of the Electrical insulation system as well as winding defects we have used the recurrent surge generator for testing winding integrity as well as Partial Discharge(PD) at fast rising voltage enabling PD measurement at closer situation under which the insulation system is supposed to work. We have discussed...

On-line partial discharge monitoring using MATLAB interface with DSO

2013 IEEE 1st International Conference on Condition Assessment Techniques in Electrical Systems (CATCON), 2013

Abstract: Compatibility of Insulating material in an insulation system always draws attention to ... more Abstract: Compatibility of Insulating material in an insulation system always draws attention to high voltage engineers and designer of electrical machines and components. The compatibility is best understood when we understand the basic physical phenomenon related to this. Since the problem of compatibility is principally due to dielectric mismatch of different insulating materials and the electric field applied to the insulating system a designer or a practicing electrical engineer should have a clear idea of these parameters. Here the author tried to describe the whole thing in a quantum mechanical and field theoretic approach in a lucid way. Starting with an introduction to the basics of dielectrics and electrical field author tried to explain how the quantum and thermo dynamical state of composite insulating material within the bulk as well as in the interfaces between solid liquid or gaseous dielectric respond to the applied electric field with a brief account of electric cond...

“Critical aspects of partial discharge measurement of potential transformer of graded insulation”. Ariit Basuray. Tech-IT 2010, an international conference on Instrument Transformers held on January 2010 at Mumbai, India

) “FAILURE ANALYSIS OF THE DRIVE INSULATOR OF MEDIUM VOLTAGE SWITCHGEAR IN INDIAN ENVIRONMENT AND POSSIBLE REMEDIES” Arijit Basuray, Rajiv Bhargava, “International Conference On High Voltage Engineering; ICHVE2010 held on October 11-14, 2010 at New Orleans, LA, USA

Recurrent Surge Generator (RSG) can be used for testing various parameters of Motor or Transforme... more Recurrent Surge Generator (RSG) can be used for testing various parameters of Motor or Transformer windings including inter turn insulation. Here, the authors discussed the use of this facility for measuring partial discharge as well.

Abstract- The dynamics of Colpitts oscillator under the influence of sinusoidal forcing has been ... more Abstract- The dynamics of Colpitts oscillator under the influence of sinusoidal forcing has been investigated here. Formation of torous and its break down of chaos has been observed when the Colpitts oscillator in periodically oscillating state is forced by external sinusoidal signal. The influence of amplitude and the frequency of the external signal have been stressed in this work. Results of both numerical and practical experiments are presented here

(i) Study of the Effect of Magnetic Field on the Impurity Bound Polaronic Energy levels in a Parabolic quantum dot. – A.Basuray and S. Mukhopadhyay, Indian J. Phys. 77A (2), 129-132 (2003)

The Partial Discharge (PD) signals, which are characterized by high frequency current pulses, are... more The Partial Discharge (PD) signals, which are characterized by high frequency current pulses, are strongly coupled with external noise. In on-site PD measurement de noising this PD signal from noisy environment is one of the major challenges. This paper proposes a new nonlinear threshold function for de-noising PD signal using wavelet transform (WT) technique. This new threshold function is continuous as the soft threshold function and also uses the unused coefficients (i.e. wh ich are less than threshold value) which are set to zero in different threshold function. This method first applied on two different type PD signals with White Gaussian Noise (WGN) and simulation results shows that new threshold function can give beUer performance by changing the variable parameter.

2013 IEEE Conference on Information and Communication Technologies, ICT 2013, 2013

In this paper a new approach based on wavelet transform to select optimum wavelet bases for on li... more In this paper a new approach based on wavelet transform to select optimum wavelet bases for on line Partial Discharge (PD) measurement is proposed. Among the previous work correlation coefficient and signal-to-noise ratio is used for evaluating the optimal wavelet bases. In statistical point of view, these two indexes can not give optimum de-noising performance comprehensively. So, in this paper, the concept of energy loss is taken into the account and it is more effective for further analyzing the quality of partial discharge signal. This method is applied on two simulated PD signal and also on field detected signal. From the results it shows that the de-noising procedure can be improved by selecting the optimal wavelet bases.