Health assessment of the electrical contact-line connections in view of the operational traction load pattern of the electric rolling stock

Abstract

Abstract Estimation of the traction energy system reliability and efficiency due to timely and immediate identification of heating sites of contact joints is the future-oriented technology for the condition oriented service and repair of the electrical equipment of energy providers. It is peculiar with the roughly alternating load of the electric current action during the day. This makes it difficult to identify the current state of the electrical connection. Thus, it becomes necessary to specify the dependence of changes in the assessment criteria of the electrical connection condition in operation.