NDLI: Magnetizing inrush model of transformers based on structure parameters

Content Provider	IEEE Xplore Digital Library
Author	Shin-Der Chen Lin, R.-L. Chih-Kun Cheng
Copyright Year	1986
Abstract	This paper proposes a circuit model for the transient period of inrush current in a transformer. The magnetizing inrush model is developed from the structural parameters of the transformer. In the analysis of the magnetization curve, the relationship between the magnetic flux density and magnetic field intensity differs from the ordinary B-H curve; this paper interchanges the B and the H and characterizes the B-H of the magnetic core as a simple tangent function in the H-B planes. Furthermore, the concept of inrush equivalent inductance is also used in the magnetizing inrush model. Using the magnetizing inrush model, an inrush current value can be estimated before the transformer is manufactured. Moreover, in the future, this model can provide the power system with a more thorough transient analysis. During this research, the inrush currents are simulated using the circuit model from ICAP/4. Fourteen actual transformers, each with a different winding structure, are used for demonstration. Experiments and simulations are carried out to examine the proposed method.
Sponsorship	IEEE Power Engineering Society
Starting Page	1947
Ending Page	1954
Page Count	8
File Size	716339
File Format	PDF
ISSN	08858977
Volume Number	20
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Surges Transformers Power system modeling Magnetic flux Power system simulation Power system transients Circuit simulation Structural engineering Magnetic analysis Magnetization transformer Inrush current inrush equivalent inductance magnetizing inrush model
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology Electrical and Electronic Engineering

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