Title :
Comparative study of the effect of various shields on lightning electric field in power transformer windings
Author :
Meshkatodini, M.R. ; Shahmohammadi, Ali ; Majidi, M. ; Karami, Mansoureh
Author_Institution :
Electr. Eng. Fac., Power & Water Univ. of Technol., Tehran, Iran
Abstract :
In this paper, voltage distribution and maximum electric field intensity in power transformer windings, using various electric shields are studied. The study covers disk type and layer type windings. According to the results, disk-type windings with inter-turn shields have the best voltage distribution under lightning impulse conditions.
Keywords :
electric fields; lightning; power transformers; transformer windings; voltage distribution; covers disk type winding; electric shields; inter-turn shields; layer type windings; lightning electric field; lightning impulse conditions; maximum electric field intensity; power transformer windings; voltage distribution; Capacitance; Electric fields; Electrostatics; Lightning; Power transformers; Surges; Windings; high voltage shields; lightning overvoltages; potential gradient; transformer winding; voltage distribution;
Conference_Titel :
PowerTech, 2011 IEEE Trondheim
Conference_Location :
Trondheim
Print_ISBN :
978-1-4244-8419-5
Electronic_ISBN :
978-1-4244-8417-1
DOI :
10.1109/PTC.2011.6019294
