Удосконалення методів контролю теплового стану тягових електричних двигунів електровозів

Abstract

UA: У статті проведено аналіз відмов тягових електродвигунів електровозів. Запропоновано систему заходів та обладнання для контролю теплового стану, що створює умови організації ремонту за фактичним технічним станом.

EN: Completion of the review of methods and tools for monitoring the technical condition of traction electric motors (TM) has shown that existing technologies do not provide fully reliable results. Should be considered the most promising thermal control, has been widely used in transportation, energy, construction, medicine. Purpose of the article - the development of thermal control and predict the remaining life of the winding insulation of motors based on the systematic thermal overload, which gives an opportunity to increase the efficiency of the locomotives as a whole and to reduce the breakdown of the number of motors. Most frequently the traction motors to be repaired due to damage to the insulation (30 %), its low resistance (5 %), the occurrence of the fire by the circular collector (15 %), damage the anchor bearing (15 %). The technology assessment of the technical condition of the anchors TM with thermal control method comprising: - Of the operations of preparation and testing of TM by mutual load after repair; - Operative measurement of temperature fields on the outer surface of the armature using a portable temperature recorder; - Mathematical processing of thermography; - Issue a report on the quality of repair of motor armature. Thermal control system and predict the remaining life of the winding insulation TM allows you to limit the amount of thermal overloads, and thus reduce the number of failures of electric locomotives and stops.