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What types of signalling systems are used on IR?

21-06-2019

R uses several forms of signalling. In IR manuals reference is made usually only to 4 main types of systems, Lower Quadrant semaphore, Modified Lower Quadrant semaphore, Multiple Aspect Upper Quadrant semaphore, and multiple-aspect colour-light signalling. But in practice there are some variations in the kinds of colour-light signalling seen, so for ease of analysis, the following classification is used here. (Abbreviations in parentheses given for ease of reference in the text that follows.) ये भी पढ़े - सिर्फ माउथफ्रेशनर से कहीं ज्यादा गुणकारी है सौंफ, जानें और बहुत से

Where are the loco sheds, workshops, and trip sheds?

June 22, 2019

Western Railway Shed Type Loco / MU's Comments Ratlam Diesel WDS-6, WDM-2, WDM-3A, WDM3-D, WDG-4 Formerly home for the double-headed diesel-hauled Rajdhanis' locos. Started receiving EMD locos from 7/13. Locos mostly serve on routes in Gujarat and down Konkan Railway. Vatwa (for Ahmedabad) Diesel WDM-3A, WDM-3D, WDG-3A,

How were local or suburban trains numbered before 2011? Or, what were the exceptions to the 4-digit scheme?

June 22, 2019

Local and suburban trains Passenger services within a zone sometimes had just two or three digits, not conforming to the pattern above, and sometimes prefixed with codes indicating the station they served (e.g. 'LK21' passenger service from Lucknow; 'DK-1' for the Delhi-Khurja EMU; 'AD-3' for one of the Aligarh-Delhi MEMUs; etc. SR ran EMU

What were the train numbering systems in 2010 and before?

June 22, 2019

From 1989, but prior to December 20, 2010, trains were numbered differently. A system of 4-digit numbers was used for all long-distance passenger trains, while local (intra-zone) trains, suburban services, etc., had numbering schemes that varied widely. Before 1989, trains had numbers that were allotted by their respective zonal railways (and

What do the 5 digits in a train number mean?

June 22, 2019

On December 20, 2010, IR switched to a system of 5-digit numbers that are supposed to be used for all passenger trains across its system. The first digit In the 5-digit train numbering scheme, the first digit indicates the type of the passenger train, as follows: 0 is for special trains (e.g., summer specials, holiday specials, etc.) 1 is for

Why do locos sometimes use the rear pantograph and sometimes the front pantograph?

June 22, 2019

There is in principle no difference between using the front and the rear pantographs for most locos as each is fully capable of delivering the required electric current from the catenary to the loco. (The AC-DC locos are special in that each loco is intended for a different traction supply.) Generally on IR there is no need for both pantographs to

How do the AC-DC locos (WCAM series) switch from one power source to another on the run?

June 22, 2019

The WCAM-1 has a selector on the rightmost side of horizontal control panel for selecting the pantograph. It has four positions, DC, AC, DC-ALT and AC-ALT. In DC and AC-ALT mode, pantograph with two collector shoes is raised; in AC and DC-ALT, pantograph with one collector shoe is raised. The DC pantograph has two shoes and is thicker in its

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What types of signalling systems are used on IR?

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