Title :
Dynamic deformation analysis of power transformer windings by considering the effect of elasticity characteristics of kraft paper
Author :
Bin Yang ; Shu Hong Wang ; You Peng HuangFu ; Guo Lin Wang ; Hai Jun Zhang
Author_Institution :
Sch. of Electr. Eng., Xi´an Jiaotong Univ., Xi´an, China
Abstract :
In this paper, the elasticity characteristics of kraft paper are measured for analyzing the winding axial stability of power transformer. The elasticity characteristics of kraft paper used in transformer are investigated under different experiment conditions of oil-immersed time and oil temperature. The axial dynamic force and displacement of windings are modeled and analyzed in ANSYS. The axial kinetic linear and non-linear characteristics of a 220kV power transformer under short circuit faults are analyzed for verification of axial stability. Results can provide a reference for improving the winding axial stability of power transformer.
Keywords :
elastic deformation; elasticity; mechanical engineering computing; paper; power engineering computing; power transformer insulation; short-circuit currents; transformer oil; transformer windings; ANSYS; axial kinetic linear characteristics; axial kinetic nonlinear characteristics; axial stability verification; dynamic deformation analysis; elasticity characteristic effect; kraft paper; oil temperature conditions; oil-immersed time conditions; power transformer windings; short circuit fault analysis; voltage 220 kV; winding axial dynamic force; winding axial stability analysis; windings displacement; Circuit stability; Elasticity; Force; Oil insulation; Power transformers; Stability analysis; Windings; finite element; kraft paper; power transformer; winding vibration;
Conference_Titel :
Applied Superconductivity and Electromagnetic Devices (ASEMD), 2013 IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-0068-8
DOI :
10.1109/ASEMD.2013.6780803
