Field Experience with Sweep Frequency Response Analysis for Power Transformer Diagnosis
Sweep frequency response analysis has been turning
out a powerful tool for investigation of mechanical as well as
electrical integration of transformers. In this paper various aspect of
practical application of SFRA has been studied. Open circuit and
short circuit measurement were done on different phases of high
voltage and low voltage winding. A case study was presented for the
transformer of rating 31.5 MVA for various frequency ranges. A
clear picture was presented for sub- frequency ranges for HV as well
as LV winding. The main motive of work is to investigate high
voltage short circuit response. The theoretical concept about SFRA
responses is validated with expert system software results.
[1] Omicron FRAnalyzer User Manual, “Sweep frequency response
analyzer for power transformer winding diagnosis”, Omicron
electronics.2009.
[2] Nadim Mohamed. Ee Publishers. Electromagnetic forces in transformers
under short circuit conditions. Retrieved date March, 20,
2013,Fromhttp://eepublishers.co.za/images/upload/Energize_2011_/07_
TT_02_Electromagnetic.pdf.
[3] The Electric Power Industry Standard of People’s Republic of China,
“Frequency Response Analysis on Winding Deformation of Power
Transformers”, China, 2005.
[4] J.R. Secue and E. Mombello,” Sweep frequency response Analysis
(SFRA) for the assessment of winding displacements and deformation
inpower transformers”, Electric Power Research 78, 2008.
[5] CIGRE 2009, Kreatege Kruger, ViljeenDierks, ―FRA sensitivity for
fault detection‖, 2008.
[6] IEEE PC 57.149 Guide for the Application and Interpretation of
FrequencyResponse Analysis for Oil Immersed Transformer; March
2013.
[7] CIGRE WG A2.26 (342),‖Mechanical condition assessment of
transformer windings using Frequency Response Analysis‖, 2008.
[8] WG report on ―Transportation issues Guide‖, IEEE (PC57.150)
technical committee."Transformer Diagnostic Testing by Frequency
Response Analysis"
[9] Dick, E. P. and Erven, C. C, IEEE Trans PAS-97, No. 6, pp 2144-2153,
1978.
[1] Omicron FRAnalyzer User Manual, “Sweep frequency response
analyzer for power transformer winding diagnosis”, Omicron
electronics.2009.
[2] Nadim Mohamed. Ee Publishers. Electromagnetic forces in transformers
under short circuit conditions. Retrieved date March, 20,
2013,Fromhttp://eepublishers.co.za/images/upload/Energize_2011_/07_
TT_02_Electromagnetic.pdf.
[3] The Electric Power Industry Standard of People’s Republic of China,
“Frequency Response Analysis on Winding Deformation of Power
Transformers”, China, 2005.
[4] J.R. Secue and E. Mombello,” Sweep frequency response Analysis
(SFRA) for the assessment of winding displacements and deformation
inpower transformers”, Electric Power Research 78, 2008.
[5] CIGRE 2009, Kreatege Kruger, ViljeenDierks, ―FRA sensitivity for
fault detection‖, 2008.
[6] IEEE PC 57.149 Guide for the Application and Interpretation of
FrequencyResponse Analysis for Oil Immersed Transformer; March
2013.
[7] CIGRE WG A2.26 (342),‖Mechanical condition assessment of
transformer windings using Frequency Response Analysis‖, 2008.
[8] WG report on ―Transportation issues Guide‖, IEEE (PC57.150)
technical committee."Transformer Diagnostic Testing by Frequency
Response Analysis"
[9] Dick, E. P. and Erven, C. C, IEEE Trans PAS-97, No. 6, pp 2144-2153,
1978.
@article{"International Journal of Electrical, Electronic and Communication Sciences:71402", author = "Ambuj Kumar and Sunil Kumar Singh and Shrikant Singh", title = "Field Experience with Sweep Frequency Response Analysis for Power Transformer Diagnosis", abstract = "Sweep frequency response analysis has been turning
out a powerful tool for investigation of mechanical as well as
electrical integration of transformers. In this paper various aspect of
practical application of SFRA has been studied. Open circuit and
short circuit measurement were done on different phases of high
voltage and low voltage winding. A case study was presented for the
transformer of rating 31.5 MVA for various frequency ranges. A
clear picture was presented for sub- frequency ranges for HV as well
as LV winding. The main motive of work is to investigate high
voltage short circuit response. The theoretical concept about SFRA
responses is validated with expert system software results.", keywords = "Frequency deviation, OCT & SCT, SFRA,
Transformer winding.", volume = "9", number = "3", pages = "392-8", }