Analysis of Power Transformers Under Transient Conditions
Abstract
Low specific weight transformers may be designed to operate under impulse conditions well above the steady state limit. This usually results in nonlinear current and voltage transformation. A procedure is outlined in this paper for the analysis of lumped parameter transformer models with nonlinear self-inductance. An algorithm for modeling inductance is developed which is accurate for square loop cores as well as ordinary soft magnetic materials. A simple routine which can be implemented with modest computing power is used to determine the dynamic response of transformers driven by a variety of sources. The model permits independent assignment of initial conditions for the magnetic state of the core and the phase of the driving source. This permits a computation of inrush currents and output waveforms under the entire range of possible initial conditions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1976
- Accession Number
- ADA637923
Entities
People
- David L. Lockwood
- Ralph I. Mcnall Jr.
- Richard F. Whitbeck