Title :
Identification of the power transformer 110/23 kV failure
Author :
Brandt, M. ; Peniak, Adrian
Author_Institution :
Dept. of Meas. & Appl. Electr. Eng., Univ. of Zilina, Zilina, Slovakia
Abstract :
This paper deals with power oil transformer 40 MVA complex diagnostics and its state evaluation. The diagnostic methods like the evaluation of capacitances, loss factor tg δ and analysis of frequency responses by SFRA method were used for identification. These diagnostic methods enable identification of fault by comparative measurements. In this paper is shows identification of short circuit by use of interwinding SFRA measurements.
Keywords :
failure analysis; fault diagnosis; frequency response; power transformers; SFRA method; capacitance evaluation; comparative measurements; diagnostic methods; fault identification; frequency response analysis; interwinding SFRA measurements; loss factor; power oil transformer; power transformer failure identification; voltage 110 kV; voltage 23 kV; Area measurement; Capacitance; Capacitance measurement; Frequency measurement; Humidity measurement; Lead; Systems engineering and theory; capacitance; diagnostics; sweep frequency response analysis; transformer;
Conference_Titel :
ELEKTRO, 2014
Conference_Location :
Rajecke Teplice
Print_ISBN :
978-1-4799-3720-2
DOI :
10.1109/ELEKTRO.2014.6848953
