Different Types of Faults in Power System: A fault in an electrical equipment/apparatus is defined as a defect in the electrical circuit due to which current is diverted from the…
Composite System of Track Electrification: The composite system of track electrification which comprise are the dc system the single phase ac system the three phase ac system and the composite…
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…
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…
Starting and Speed Control of DC Traction Motors: Starting and Speed Control of DC Traction Motors - As already discussed, only series and compound dc motors are suitable for traction…
Negative Booster in Electric Traction: In case of dc traction system, return current flows through the rails, to the substations. So due to this current flow through rails some voltage…
Methods of Booster Transformer in Electric Traction: In ac traction system return current mainly flows to the substation through track leaving a small portion, which flows through ground because of…