Picture map of Europe with pins indicating European capital cities

Open Access research with a European policy impact...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by Strathclyde researchers, including by researchers from the European Policies Research Centre (EPRC).

EPRC is a leading institute in Europe for comparative research on public policy, with a particular focus on regional development policies. Spanning 30 European countries, EPRC research programmes have a strong emphasis on applied research and knowledge exchange, including the provision of policy advice to EU institutions and national and sub-national government authorities throughout Europe.

Explore research outputs by the European Policies Research Centre...

Successful fault current interruption on DC circuit breaker

Shan, Yunhai and Lim, Tee C. and Williams, Barry W. and Finney, Stephen J. (2016) Successful fault current interruption on DC circuit breaker. IET Power Electronics, 9 (2). pp. 207-218. ISSN 1755-4535

Text (Shan-etal-IETPE-2016-Successful-fault-current-interruption-on-DC)
Shan_etal_IETPE_2016_Successful_fault_current_interruption_on_DC.pdf - Final Published Version
License: Creative Commons Attribution 4.0 logo

Download (1MB) | Preview


This study focus on the interruption capability of the DC circuit breaker employing a current commutation approach and evaluates the two main factors that determine the success rate for breaker current interruption, namely the current slope di/dt before current zero and the rate of rise of the transient recovery voltage dv/dt across the mechanical breaker contacts after current zero. A vacuum circuit breaker is used to evaluate DC breaker characteristics. Detailed mathematical and graphical analysis are presented for the proposed circuit operation used in analysing the circuit breaker properties, with simulation and experimental results at fault current levels up to 330 A.