The overhead rail electrification <\/strong>supplies the electrical energy to the locomotives so that the process can work without intervention of the on board movers. There are different kinds of systems used all over the world. These have a large number of advantages but there is a requirement of huge amount of funds for these. The main advantage is that, there is a higher power to weight ratio than steam and diesel engines. There is lack of exhaust fumes, less noise and lower requirements of power and for maintenance purposes. These produce lesser emissions as compared to the diesel engines. The system is highly efficient and there is no need to switch between the traction. <\/p><\/p>\n\n\n\n The\nsuburban areas are highly electrified due to the advantages offered by them. In\ncase there is a wiring break down, then also these kinds of trains can be\nbrought to a still. These are sub classified in 3 types on the basis of\nvoltage, current and contact systems. There are different kinds of voltage\nsystems used by different nations. The early electric systems used the low\nvoltage DC. In order to connect the motors,a combination of the resistors is\nused.In case of third and fourth railways, lower voltages are used. During the mid-20th<\/sup>\ncentury the rotary converters came into use. But now the process is done by\nsemiconductors that help in rectifying the process by stepping the voltage from\nthe utility supply. The DC system is quite simple but thick cables are used in\nthis system.<\/p><\/p>\n\n\n\n Another option called the third rail is a\ngreat option for the usage up to 1200V. This is used just because it helps to\ncarry more than 41% of the AC system which is at the same level of voltages.\nThis is the most compact and is used in the small tunnels mostly. These are\ndesigned for the top, side and bottom contact. \nThis option is quite safe as compared to the others and the side and\nbottom contacts have safe standards in terms of shields and are carried over by\nthe rails. The systems help to limit the size and the speeds of the trains.\nThis is a factor that helps to favour the overheads and high voltage for the\nurban usages. Some trains even use the third rail current collection. With the\nthird contact a heavy shoe which is suspended from a wooden beam is attached to\nthe bogies that collect power by sliding over the surface of the conductor\nrail. <\/p><\/p>\n\n\n\n The alternating current can also be transformed to lower voltages inside the locomotives. This helps to allow the higher voltages and smaller currents inside the locomotives. In such kinds of systems, the traction motors can be fed through the transformers with multiple taps. Changing the taps allows the voltages to change without power wasting resistors. This is driven by commutating motors which are powered by separate traction power stations. Overhead railway electrification<\/a> <\/strong>has been a revolution in the railway industry that has brought immense benefits to all the stakeholders associated with the concept.<\/p><\/p>\n","protected":false},"excerpt":{"rendered":" The overhead rail electrification supplies the electrical energy to the locomotives so that the process can work without intervention of the on board movers. There are different kinds of systems used all over the world. These have a large number of advantages but there is a requirement of huge amount of funds for these. The […]<\/p>\n","protected":false},"author":5,"featured_media":2053,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33],"tags":[32],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/premnathrail.com\/wp-json\/wp\/v2\/posts\/2051"}],"collection":[{"href":"https:\/\/premnathrail.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/premnathrail.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/premnathrail.com\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/premnathrail.com\/wp-json\/wp\/v2\/comments?post=2051"}],"version-history":[{"count":0,"href":"https:\/\/premnathrail.com\/wp-json\/wp\/v2\/posts\/2051\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/premnathrail.com\/wp-json\/wp\/v2\/media\/2053"}],"wp:attachment":[{"href":"https:\/\/premnathrail.com\/wp-json\/wp\/v2\/media?parent=2051"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/premnathrail.com\/wp-json\/wp\/v2\/categories?post=2051"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/premnathrail.com\/wp-json\/wp\/v2\/tags?post=2051"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}