Calculation of the Timing of the Replacement of Relay Equipment for Railway Automation and Telemechanic

Abstract

In 2021, at the Obukhovo station of the Oktyabrskaya railway. testing of the technology for counting the number of operations of relay equipment began. The results of testing the technology at the Obukhovo station showed that relay equipment with a high intensity of operation generates faster the standard number of operations specified in the technical specifications for the equipment. Relay equipment with a high intensity of operation needs to be replaced earlier than the scheduled period, and equipment with a low intensity of operation needs to be replaced less often than the scheduled period. The routine method of replacing relay equipment does not take into account the intensity of its work. The article proposes a scientific approach that allows you to manage the resource of the relay equipment of railway automation and telemechanic at the stage of its operation based on the calculation of the timing of its replacement. To calculate the timing of the replacement of relay equipment, objective data on the values of their actual number of operations are used. The article proposes the calculation of the timing of the replacement of relay equipment based on its characteristics, service life under technical conditions, scheduled terms in the instructions, and the intensity of its work. The calculation of the cost of failure and maintenance of relay equipment over the entire service life is given to determine the optimal replacement period for relay equipment, for which the replacement period occurs earlier than the scheduled period. The calculation of the timing of the replacement of relay equipment makes it possible to switch from the scheduled maintenance method to maintenance based on the actual state and ensure the transition to address planning. This will reduce labor costs for maintenance and the risk of relay equipment failures.