Institute of Electrical and Electronics Engineers IEEE
Abstract
D.C. electromagnets are generally used in electric devices such as an electromagnetic switch, an electromagnetic relay. an electromagneticvalue, etc.. The transientmagnetizationaffects the determination of the electromagnetic force and the performance characteristic. However. there are few reports on the detailsof the transient phenomena in an electromagnet. The purpose of this paper is to describe two phenomena which are obtained from the numerical analyses and some experiments.One is the timelag of magnetic flux due to the skin effect. The other is the transient magnetization process near the gap in the plunger type electromagnet made of solid core
