Impact of surface morphology on arcing induced erosion of CuW contacts in gas circuit breakers

M Mohammadhosein, K Niayesh… - 2018 IEEE Holm …, 2018 - ieeexplore.ieee.org
In this paper, the impact of surface morphology of contacts, in particular different
microstructural parameters like size and distribution of contact ingredients, on contact …

The consequences of arcing

PG Slade - Electrical Contacts, 1999 - taylorfrancis.com
For higher voltages (say Uc in the range 100-1000 V) the design of the switch again must
ensure the development of a high UA> Uc. This usually cannot be achieved by just opening …

Spark channel dynamics in railgun switches in unipolar and oscillatory discharges

AV Kharlov - Laser and Particle Beams, 2019 - cambridge.org
Spark gaps are often used to commute energy in the discharge of a capacitive storage to a
load. In some applications, a unipolar pulse is not feasible, and an oscillatory (underdamped …

High-Coulomb Switches and Their Applications in Pulsed Power (Review)

AV Kharlov - Instruments and Experimental Techniques, 2021 - Springer
High-current high-voltage closing switches are the key components of pulsed power
systems based on high-energy capacitor banks. Spark-gap switches are the most used …

Migration of composite contact materials components at high current arcing

E Walczuk, P Borkowski, K Frydman… - IEICE transactions on …, 2007 - search.ieice.org
The paper presents a method for testing transport of composite contacts materials under
electrical arc conditions at high currents and for polarized electrodes. Tests and the …

Modelowanie i badanie erozji styków

P Borkowski - Zeszyty Naukowe. Rozprawy Naukowe/Politechnika …, 2008 - infona.pl
W pracy przedstawiono analizę i syntezę dotychczasowej wiedzy dotyczącej erozji styków
współczesnych łączników energoelektrycznych niskiego napięcia w szerokim zakresie …

Numerical solution of a three-phase Stefan problem with high power input

G Parissenti, A Niro - Heat Transfer Engineering, 2015 - Taylor & Francis
The numerical solution of a one-dimensional, three-phase Stefan problem with a low Stefan
number is presented. Joule heating and thermal radiation are demonstrated to be negligible …

An Online Monitoring Scheme for Circuit Breakers Contact System

J Guo, J Chen, T Li, H Fu, R Qiu - … of the 4th International Conference on …, 2020 - Springer
In recent years, the prognostic and health management (PHM) technology has been
effectively developed as a key technology for the intelligent development of power grids. The …

[PDF][PDF] A mathematical model for calculating contact mass loss resulting from bridge disintegration in vacuum

P Borkowski - Archives of Electrical Engineering, 2011 - yadda.icm.edu.pl
The paper presents descriptions of bridge disintegration types and contact mass loss in the
bridge stage. There is presented Matlab solvers to solve equation describing dynamic …