Title :
Analysis and measurement of high-frequency effects in high-current transformers
Author :
Skutt, G. ; Venkatraman, P.
Author_Institution :
Digital Equipment Corp., Northborough, MA, USA
Abstract :
Finite-element analysis and one-dimensional closed-form equations are used to compute AC resistance in high-frequency transformer designed for high-power applications. Simple winding arrangements as well as interleaved windings are studied. Secondary windings with multiple parallel-connected foils are analyzed and shown to be ineffective in reducing eddy-current losses. In addition, the high-frequency impedance of a high-current termination is analyzed. Laboratory measurements are provided to support the computed results.<>
Keywords :
current transformers; eddy current losses; transformer windings; AC resistance; eddy-current losses; finite element analysis; high frequency effects measurement; high-current termination; high-current transformers; high-frequency impedance; high-frequency transformer; high-power applications; interleaved windings; multiple parallel-connected foils; one-dimensional closed-form equations; Equations; Finite element methods; Impedance; Inductance; Laboratories; Magnetic analysis; Magnetic fields; Manufacturing; Transformers; Windings;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1990. APEC '90, Conference Proceedings 1990., Fifth Annual
Conference_Location :
Los Angeles, CA, USA
DOI :
10.1109/APEC.1990.66436
