On-line impedance monitoring of transformer based on inductive coupling approach

An on-line impedance monitoring method of a transformer is proposed based on two-probe inductive coupling approach. The theory behind the method is described and validated experimentally. As it does not require direct electrical contact with the transformer powered by high voltage power supply, it can be easily installed on site and most importantly, it eliminates the potential electrical hazards imposed on the personnel who set up the measurement instrumentation.

[1]  Piush Verma,et al.  Diagnostics Techniques of Power Transformer , 2009, 2009 Second International Conference on Computer and Electrical Engineering.

[2]  A. Singh,et al.  Apparatus for Online Power Transformer Winding Monitoring Using Bushing Tap Injection , 2009, IEEE Transactions on Power Delivery.

[3]  J. C. Steed.  Condition monitoring applied to power transformers-an REC view , 1995 .

[4]  Guoqing Tang,et al.  An introduction of a condition monitoring system of electrical equipment , 2001, Proceedings of 2001 International Symposium on Electrical Insulating Materials (ISEIM 2001). 2001 Asian Conference on Electrical Insulating Diagnosis (ACEID 2001). 33rd Symposium on Electrical and Ele.

[5]  Chenguo Yao,et al.  Transformer winding deformation diagnostic system using online high frequency signal injection by capacitive coupling , 2014, IEEE Transactions on Dielectrics and Electrical Insulation.

[6]  M. Koch,et al.  A new method for on-line monitoring of bushings and partial discharges of power transformers , 2012, 2012 IEEE International Conference on Condition Monitoring and Diagnosis.

[7]  S. A. Ryder,et al.  Diagnosing transformer faults using frequency response analysis , 2003 .

[8]  J. Pleite,et al.  An overview of the On Line Application of Frequency Response Analysis (FRA) , 2007, 2007 IEEE International Symposium on Industrial Electronics.

[9]  M. S. Naderi,et al.  Advanced transformer winding deformation diagnosis: moving from off-line to on-line , 2012, IEEE Transactions on Dielectrics and Electrical Insulation.

[10]  H. Borsi,et al.  Condition monitoring and diagnosis of power transformers , 2008, 2008 International Conference on Condition Monitoring and Diagnosis.

[11]  A.E.B. Abu-Elanien,et al.  Survey on the Transformer Condition Monitoring , 2007, 2007 Large Engineering Systems Conference on Power Engineering.

[12]  M.N. Bandyopadhyay.  Condition monitoring for power transformer , 2008, 2008 International Conference on Condition Monitoring and Diagnosis.

[13]  D. Arvind,et al.  Condition monitoring of power transformer: A review , 2008, 2008 IEEE/PES Transmission and Distribution Conference and Exposition.

[14]  A. C. Sugarman.  Condition Monitoring of Electrical Equipment in Nuclear Power Plants , 1986, IEEE Power Engineering Review.

[15]  Mehdi Bagheri,et al.  Frequency response analysis and short-circuit impedance measurement in detection of winding deformation within power transformers , 2013, IEEE Electrical Insulation Magazine.

[16]  M. Muhr,et al.  Diagnostic methods for transformers , 2008, 2008 International Conference on Condition Monitoring and Diagnosis.

[17]  E.P. Dick,et al.  Transformer Diagnostic Testing by Frequuency Response Analysis , 1978, IEEE Transactions on Power Apparatus and Systems.

[18]  A. Setayeshmehr,et al.  Diagnosing Shorted Turns on the Windings of Power Transformers Based Upon Online FRA Using Capacitive and Inductive Couplings , 2011, IEEE Transactions on Power Delivery.

[19]  A. Setayeshmehr,et al.  On-line monitoring and diagnoses of power transformer bushings , 2006, IEEE Transactions on Dielectrics and Electrical Insulation.

[20]  PooGyeon Park,et al.  Fault diagnosis of a power transformer using an improved frequency-response analysis , 2005 .

[21]  Syed Islam,et al.  On the development of transfer function method for fault identification in large power transformers on load , 2000, 2000 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.00CH37132).

[22]  A.J. Vandermaar.  Condition assessment of power transformers , 2008, 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century.