Title :
Current transformer analysis under transient conditions
Author :
Rafajdus, P. ; Bracinik, P. ; Hrabovcova, V. ; Saitz, J. ; Kankula, L.
Author_Institution :
Dept. of Power Electr. Syst., Univ. of Zilina, Zilina, Slovakia
Abstract :
This paper deals with detailed analysis of a current transformer (CT) under transient conditions. The equivalent circuit parameters of a real CT are determined by means of FEM and verified by measurement for measuring and protective part of CT. A developed mathematical model of CT with nonlinear B-H curve is then used in a circuit simulation to study different transient conditions under normal and fault operation. A comparison to the measured signal on a real power line during fault condition is also given.
Keywords :
current transformers; equivalent circuits; finite element analysis; power transformer protection; transient analysis; FEM; circuit simulation; current transformer analysis; equivalent circuit parameters; fault condition; finite element methods; nonlinear B-H curve; transformer core; transient conditions; Current measurement; Current transformers; Integrated circuit modeling; Magnetic flux; Mathematical model; Transient analysis; Windings; current measurement; current transformers; equivalent circuit parameters; finite element methods; transformer core; transient analysis;
Conference_Titel :
Electrical Machines (ICEM), 2010 XIX International Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4244-4174-7
Electronic_ISBN :
978-1-4244-4175-4
DOI :
10.1109/ICELMACH.2010.5607845
