Title :
Effects of temperature and tensile stress on the magnetic properties of a steel core from an ACSR conductor
Author :
Morgan, V.T. ; Zhang, Bo ; Findlay, R.D.
Author_Institution :
Div. of Appl. Phys., CSIRO, Lindfield, NSW, Australia
fDate :
10/1/1996 12:00:00 AM
Abstract :
To calculate the radial current distribution and core loss within a concentric-lay steel-cored conductor, the magnetic properties of the core must be known for any service condition. The paper describes comprehensive measurements on a length of the steel core taken from a 54/3.77 mm+19/2.24 mn (Grackle) ACSR conductor. Curves are given to illustrate the effects of magnetic field strength, tensile stress and temperature on the modulus, real and imaginary parts of the complex relative permeability, the hysteretic angle, the loss tangent, the total core loss and the hysteresis loss
Keywords :
current distribution; magnetic fields; permeability; power cable testing; power cables; steel; thermal analysis; 2.24 mm; 3.77 mm; ACSR conductor; Al; concentric-lay steel-cored conductor; hysteresis loss; hysteretic angle; loss tangent; magnetic field strength; magnetic properties; measurements; modulus; radial current distribution; relative permeability; temperature; tensile stress; total core loss; Conductors; Core loss; Current distribution; Length measurement; Magnetic cores; Magnetic field measurement; Magnetic hysteresis; Magnetic properties; Temperature; Tensile stress;
Journal_Title :
Power Delivery, IEEE Transactions on
