Electromagnetic force distribution computations due to switching surge in disc-type winding

Md Yasid, Nurul Farahwahida and Azis, Norhafiz and Mohd Yousof, Mohd Fairouz and Jasni, Jasronita and Talib, Mohd Aizam and Avinash Srikanta Murthy, Avinash Srikanta Murthy (2023) Electromagnetic force distribution computations due to switching surge in disc-type winding. Indonesian Journal of Electrical Engineering and Computer Science, 30 (2). pp. 659-669. ISSN 2502-4752

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Abstract

This manuscript discusses the computation of electromagnetic forces on a disc-type winding due to a standard switching impulse (SSI). First, the resistances, inductances and capacitances (RLC) of a 30 MVA, 33/11 kV disctype distribution transformer were estimated to obtain the winding equivalent circuit. The transient voltage waveforms for each of the disc layers and corresponding resonances of the windings under the SSI were then obtained in time domains. Next, the axial and radial force distributions in the disc winding due to the SSI were computed. The forces on each disc layer and along the disc windings due to the SSI were computed based on the analytical and numerical methods via the finite element method (FEM) respectively. The non-uniform switching impulse voltage distribution results in non-uniform force distribution along the disc winding. The magnitude of the axially directed force on the disc winding is found to be higher as compared to the radially directed force.

Item Type:	Article
Uncontrolled Keywords:	Disc winding Electromagnetic force Switching surge Transformer Transient
Subjects:	T Technology > T Technology (General)
Divisions:	Faculty of Electrical and Electronic Engineering > Department of Electrical Engineering
Depositing User:	Mr. Mohamad Zulkhibri Rahmad
Date Deposited:	17 Oct 2023 07:38
Last Modified:	17 Oct 2023 07:38
URI:	http://eprints.uthm.edu.my/id/eprint/10150

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