Development of a Semiconductor Time Relay for Locomotives

Purpose. The need to replace the outdated element base of locomotive electrical apparatuses is urgent under conditions overhaul extend their service life. main aim work reduce costs for operation and repair rolling stock by increasing reliability apparatuses, introduction unified technical solutions. Methodology. Using system-historical approach, advantages disadvantages design principles locomotives are found out. improvement directions elemental time relay have been determined. develop solutions implementation relays substantiated. methods applied theory digital machines circuit engineering, a semiconductor was developed, which provides possibility implementing 23 options delay without changing design. proposed methodology allows designing universal electronic with any ranges delays. A combination binary counters multiplexer used as elements control. absence control capacitance active resistance (RC circuits) in scheme ensuring stability characteristics over entire operating interval, reducing maintenance apparatuses. Findings. wide range connecting circuits supply voltage 50 110 V has developed. obtained results make it possible predict further development apply developed (electronic) all types railway stock. Originality. In work, technologies were analysed. improve substantiated using example. Practical value. Based on solutions, produce locomotives.