Thermal modes of operation of power-current contact of electric transport during conduct of bench tests

Purpose. Analysis of the results bench tests sliding electrical contacts electric vehicles, in order to determine thermal regime contact.
 Methodology. The initial data were obtained during field experiments on a specialized stand laboratory, which carried out wear contact wire inserts different types for pantographs electro-rolling stock railways. To temperature at place contact, non-destructive non-contact method control using imager was used.
 Findings. During experimental part research, imaging photographs obtained, they recorded temperatures between insert pantograph rolling and installed test disk. These values with certain time interval, allowed build dependences changes over time, heating constant "insert-contact wire" obtain final value end tests. Accepting sample minimum area is as reference, it becomes possible by predict result other pads.
 Originality. Indicators modes vehicles are first proposed relative indicator allows qualitative indicators vehicles..
 Practical value. Bench current collectors long procedure, normative number passes collector equal 500 thousand passes, requires significant expenditure energy, human resources others. according results, namely index, allow carry two-stage At stage, duration 10 revolutions disk, determined compared corresponding case their compliance successful (contact less than normal) or unsuccessful. In latter case, need second stage testing up questionable, because will be negative, involved test, therefore these impractical.