Understanding pantograph arcing in electrified railways - influence of various parameters

The most common and yet unavoidable EMC problems with electrified railways are due to pantograph arcing. This distorts the waveform of the supply voltage and current, can generates transients during the zero crossings of the current and can cause interference with the traction power and signalling system. Pantograph arcing is a complex phenomenon and depends on speed of the train, current, presence of inductance etc. In a sliding contact like pantograph and contact wire, the arc root moves across both electrodes because of the relative motion between them. In this paper, we will present an experimental analyses of the arc root movement and influence of different parameters on it using a laboratory setup.

[1]  Dierk Bormann,et al.  DC components in pantograph arcing: mechanisms and influence of various parameters , 2007, 2007 18th International Zurich Symposium on Electromagnetic Compatibility.

[2]  H. P. Van De Braak,et al.  Electrical Contacts , 1961, Nature.

[3]  Philip J. Moore,et al.  Investigations into electromagnetic emissions from power system arcs , 1999 .

[4]  Bernardo Tellini,et al.  Line-pantograph EMI in railway systems , 2001 .

[5]  E. I. Shobert.  Sliding electrical contacts , 1993, Proceedings of IEEE Holm Conference on Electrical Contacts.

[6]  F. A. Benson,et al.  POWER COLLECTION FOR HIGH-SPEED TRAINS BY AN ELECTRIC ARC , 1976 .

[7]  Surajit Midya.  Electromagnetic Interference in Modern Electrified Railway Systems with Emphasis on Pantograph Arcing , 2008 .

[8]  Yukio Kito,et al.  Total voltage drops in electrode fall regions of , argon and air arcs in current range from 10 to 20 000 A , 1996 .

[9]  B. Tellini,et al.  Conducted and radiated interference measurements in the line-pantograph system , 2000, Proceedings of the 17th IEEE Instrumentation and Measurement Technology Conference [Cat. No. 00CH37066].

[10]  Xingwen Li,et al.  Measurement of the Dielectric Recovery Strength and Reignition of AC Contactors , 2004, IEICE Trans. Electron..

[11]  Anders Larsson,et al.  Voltage drop along a lightning channel during strikes to aircraft , 2005 .

[12]  Paul G. Slade,et al.  Electrical contacts : principles and applications , 1999 .

[13]  M. Lindmayer,et al.  Reignition Voltage of Arcs on Double-Break contacts , 1986 .

[14]  Ii E. Shobert.  Carbon, Graphite, and Contacts , 1976 .

[15]  Rajeev Thottappillil,et al.  An overview of electromagnetic compatibility challenges in European Rail Traffic Management System , 2008 .

[16]  Francis J. Clauss.  Sliding Electrical Contacts for Ultrahigh Vacuum , 1965 .