Study on electric spark discharge between pantograph and catenary in electrified railway

The electric spark caused by pantograph-catenary (PC) electrical contact failure happens frequently, it is a kind of arcing phenomenon which can severely affect the current collection PC. theoretical analysis and modelling PC are tried. First, spots between their temperature rise analysed derived based on classical theory, respectively. mechanism discharge revealed through voltage difference, model proposed combining with spot formula mechanism. Then, in order to obtain some key parameters an model, such as force current, structure circuit vehicle-grid established for calculation rate Finally, calculated under different system. results verified experiment results. Through presentation correlation factors, force, material PC, this study support assessment quality system future study.