David Telugu Movie 1080p Download Torrent
Electric Locomotive Maintenance Pdf Download
Electric locomotives are powered by electricity from overhead lines or third rails. They are used for passenger and freight transport on railways. Electric locomotives have many advantages over diesel locomotives, such as higher speed, lower noise, lower emissions, and lower operating costs. However, electric locomotives also require regular maintenance to ensure their safety and performance.
Download Zip: https://blacigulwa.blogspot.com/?file=2w3t2k
One of the most important components of an electric locomotive is the transformer, which converts the high-voltage alternating current (AC) from the power supply to the low-voltage direct current (DC) or variable-frequency AC for the traction motors. The transformer is subjected to high temperatures, vibrations, and electrical stresses during operation. Therefore, it needs proper inspection, testing, cleaning, oiling, and repairing to prevent failures and accidents.
Another vital component of an electric locomotive is the pantograph, which is a device that collects the electric current from the overhead line. The pantograph consists of a metal frame with a contact strip that slides along the wire. The pantograph must be adjusted to maintain a constant contact pressure with the wire, and avoid sparking, arcing, and wear. The pantograph also needs periodic cleaning, lubrication, and replacement of worn parts.
Other components of an electric locomotive that require maintenance include the air compressor, which provides compressed air for the brakes and other pneumatic systems; the electronic brake system, which controls the blending of electrical and pneumatic braking; the triplet pneumatic brake panel, which minimizes the piping and provides a single location for all pneumatic equipment; and the tread brake units, which reduce maintenance by using disc brakes instead of shoe brakes.
Maintenance of electric locomotives is a complex and specialized task that requires trained and qualified personnel, as well as adequate tools and equipment. To assist the maintenance staff, various manuals and handbooks have been published by railway authorities and organizations. These documents provide detailed information on the technical and maintenance aspects of electric locomotives, such as operating instructions, safety precautions, troubleshooting procedures, testing methods, spare parts lists, and diagrams.
One of the sources of such documents is the Research Designs and Standards Organisation (RDSO), which is an Indian Railways organization that develops standards and specifications for railway equipment and systems. The RDSO has published several publications on electrical engineering topics related to electric locomotives. Some of these publications are available online in PDF format for free download. Here are some examples:
[Maintenance Handbook on Transformer of 3 Phase Electric Locomotive]: This handbook provides comprehensive information on the maintenance of transformer of three phase electric locomotives. It covers topics such as transformer construction, oil system, cooling system, protection system, testing methods, oil sampling and analysis, preventive maintenance schedule, troubleshooting guide, and safety precautions.
[3 Phase Electric Loco Operating Instructions]: This document provides operating instructions for three phase electric locomotives. It covers topics such as general features, controls and indicators, starting procedure, running procedure, braking procedure, emergency procedure, fault finding procedure, and maintenance tips.
[Electrical Engineering Publications]: This document lists various publications on electrical engineering topics published by RDSO. It includes pamphlets on AC electric locomotive transformers, air compressors of AC electric locomotives, safety precautions while working on tower wagon, review of maintenance schedule for overhead equipment (OHE), handbook on maintenance of electrical general services substations, maintenance handbook of pantograph AM-12, etc.
These are some of the sources of information on electric locomotive maintenance that can be downloaded in PDF format. However, these documents are not exhaustive or definitive. They are meant to serve as guidelines and references for maintenance staff. The actual maintenance practices may vary depending on the type and model of electric locomotive, the condition and availability of equipment and materials, the local rules and regulations, and the professional judgment of the personnel involved.