Define the term “catenary system” in railway electrification.

The term “catenary system” refers specifically to a system of overhead wires that are installed to supply electric power to trains. This system is essential for electric train operations, as it delivers the necessary electrical current for traction motors to propel the trains. The overhead wires are usually suspended from poles or structures in a manner that follows the contour of a catenary curve, ensuring a consistent and reliable power supply to the trains as they travel along the tracks.

In a catenary system, the wires are typically connected to the train's pantograph, which makes contact with the wire to draw power. This method of electrification allows for efficient energy transmission and enables trains to achieve higher speeds and lower emissions compared to traditional diesel locomotives. Understanding the catenary system is crucial for those working in railway electrification, as it directly relates to the operation and maintenance of electric trains.