Improving the design of MV load-break switch contacts
MetadataShow full item record
- Master i teknologi 
The breaking of currents either during maintenance, faults, or overload is common in load-break switches. Because switches are usually placed before critical installations it is important that their designs implementations are done in a manner that upholds fault tolerance. In efforts to achieve this, a fault tolerance design for switches, this project explores the ways through which an MV load-break switch contact can be improved. Specifically, this research will focus on design implementations of ratios between contact and bulk resistance. Secondly, it will explore the impact of contact force on both friction and resistance. As such, this project will go a step further and look at the influence of surface lubrication on both friction and resistance. By understanding the implication of these three factors, the project shall be in a better position recommend improved design characteristics of a tulip contact. Finally, yet importantly, in order to affirm any findings of an improved MV load-break switch contacts design, this project will review operation theories that govern this type of switches. Through this approach, this study will present appropriate and measurable recommendations for an improved design of an MV load-break switch such as an increase of a-spots by higher contact force.