%0 Journal Article
	%A Ambuj Kumar and  Sunil Kumar Singh and  Shrikant Singh
	%D 2015
	%J International Journal of Energy and Power Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 99, 2015
	%T Field Experience with Sweep Frequency Response Analysis for Power Transformer Diagnosis
	%U https://publications.waset.org/pdf/10002913
	%V 99
	%X 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.
	%P 392 - 399