Substations Interview Questions and Answers: 1. State any four types of substations according to the service ? Ans. The substations, according to the service rendered are: Transformer substations, Switching substations,…
Busbar Arrangements in Substations: Busbar are the important components in a sub-station. There are several Busbar Arrangements in Substations that can be used in a sub-station. The choice of a…
Types of Motor Enclosures: In order to protect machines against the ingress of dirt and dust or larger foreign bodies like spanners, vermin etc. into it, it is desirable that…
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…
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…
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…