Different Groups of Systems of Electric Traction: As already mentioned, systems of electric traction may be divided into two main groups. (1) The group consisting of vehicles which receive electric…
Different Types of Traction System: The various types of traction system commonly used are described below. 1. Direct Steam Engine Drive. The steam engine drive used to be widely employed…
Starting and Speed Control of Single Phase AC Series Motor: The starting and speed control of single phase AC series motor is carried out by varying the applied voltage. As…
Thyristorised Control of DC Electric Traction Motor: The modern trend is towards the use of dc motors (both separately excited and dc series motors) equipped with thyristor chopper control. The…
Buck and Boost Method of Speed Control in Traction: The circuit diagram of buck and boost method of speed control in electric traction is shown in Fig. 13.15. The armatures…
Contactor Type Controller in Electric Traction: Contactor Type Controller - Schematic power diagram of a 1,500 V dc train equipment consisting of 4 dc series motors wired for series-parallel operation…
What is Transition Method in Electric Traction? The methods of changing-over the connections from one grouping to another are known as transition method. The change-over from full series (when the…
Systems of Track Electrification AC Electrification System: As even in single phase electrification, the substations are necessarily required to keep the voltage drop within permissible limits. The type of substations…