What does ‘Static Converter Fitted’ or similar annotation mean on a locomotive?

20-06-2019

Locos traditionally had a rotary converter (of Arno make) to generate 3-phase AC on board to power auxiliary equipment such as traction motor blowers, compressors, exhausters, etc. Starting in the 1980s static converters using solid-state circuitry to generate 3-phase AC on board have been used instead of the Arno converter, driving up efficiency and reliability by eliminating the moving parts that the Arno contained. ये भी पढ़े - 10 ईज़ी वेट लॉस टिप्स Static convertors and microprocessor control have now become standard kit for all new production WAP-4s beginning from the 22640 series. Static convertors have become standard for all new WAG-7's too.

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What other coaches have been used lately?
June 22, 2019

In the late 1990's RCF, under the auspices of a UN-assisted program, came out with some prototype coaches of new designs, classified IRX/IR15 (IRW?), IRY/IR20, and IRZ/IR30. The first part of the code (e.g., IRY) refers to the shell design, and the second part (e.g. IR20) to the bogie design.) The IR20 bogies are based on the Eurofima design (in

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What’s an ‘integral’ coach?
June 22, 2019

The ‘integral’ coaches built by ICF have monocoque or single-shell bodies (based on a 1950's Swiss design, ‘Schlieren’ Swiss Car and Elevator Manufacturing Co.) with the floor being part of the body; it is an anti-telescopic design, which prevents coaches from being crushed lengthwise in the event of a train collision. Since they were

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Where are present day IR coaches manufactured?
June 22, 2019

Passenger coaches are manufactured at three principal places: Integral Coach Factory (ICF) at Perambur, Railway Coach Factory (RCF) at Kapurthala, and Bharat Earth Movers Ltd. (BEML) at Bangalore. A few coaches are (or were) also manufactured by Hindustan Aircraft Ltd. (HAL) and Jessop. Some auxiliary equipment and repair works are carried out at

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When were barred windows on coaches first introduced?
June 22, 2019

A characteristic feature of most passenger stock on IR today is the presence of welded bars on the windows. These were apparently introduced at first on night trains to provide security against theft by persons at stations, around the 1970s, but in the 1980s their use spread to most trains and now they are almost universal. Very few older coaches

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Who were the early manufacturers of IR stock?
June 22, 2019

Some early coaching stock was built in Great Britain and imported to India. This included 'pattern' coaches of the 1850s, many prototype steel coaches from 1913 and much EMU stock well into the 1960s until ICF's production built up. However, most coaching stock was built on underframes which had been imported ready-made or in

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What is the history of passenger stock and accommodations?
June 22, 2019

As railway operations in India were handled by a large number of companies at first, there was a lot of variety in the kinds of stock used and the classes of accommodation provided. Larger railways tended to have three or four classes of accommodation, from First through Fourth (and many special-purpose luxury saloons and the like in

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