Teh, Jia Kee (2022) Behavioral studies of surge protection devices based on traditional metal oxide varistor / gas discharge tube and power electronics switches. Master dissertation/thesis, UTAR.
Abstract
The source of this power surge can be classified into internal and external source of surge. Lightning is the most obvious source of surge which can lead to degrade or severe physical damage to electrical device in the circuit. Power surge will also cause damage to devices, for instance computers, servers, telecommunication devices and CCTVs which will result in the damages in the form of network paralysis, data loss, massive physical and financial damage and downtime. Hence, some conventional methods of protection against power surge such as metal oxide varistor (MOV) and gas discharged tube (GDT) are applied in order to prevent any damage or losses caused by surge. However, conventional SPDs are not able to handle continuous and repetitive surge. Therefore, this research replaces the conventional method of surge protection with power electronics for better improvement. The conventional surge protection methods and protection by power electronics are studied in both simulation and hardware. In this research, power electronics is proven to be potential candidate as a surge protection device since the response time of MOSFET is faster than MOV and the clamping voltage level of IGBT is lower than MOV.
Actions (login required)
![[img]](http://eprints.utar.edu.my/style/images/fileicons/application_pdf.png)
