Central Organisation for Railway Electrification
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Board Chairman) | |
Products | Railway electrification |
---|---|
Owner | Indian Railways |
Website | core.indianrailways.gov.in |
The Central Organisation for Railway Electrification (CORE) is the unit of
CORE headquarters has Electrical, Signal and Telecommunications (S&T), Civil Engineering, Stores, Personnel, Vigilance and Finance departments headed by Chief Project Directors.
History
1500 V DC
3000 V DC
The electrification of the
25 kV AC
25 kV AC railway electrification emerged as an economical form of electrification as a result of research and trials in Europe, particularly on French Railways (SNCF). Indian Railways decided to adopt the 25 kV AC system of electrification as a standard in 1957, with SNCF as their consultant in the early stages, later taken over by the "50 c/s Group". The joint venture was founded in 1954 by several European railway manufacturers and was dedicated to the development and construction of locomotives powered by 50 Hz alternating current. It arranged the supply contracts for the WAM-1, WAG-1 and WAG-3 locomotives and their spare parts.[citation needed]
The first section electrified with the 25 kV AC system was Raj Kharswan–Dongoaposi, on the South Eastern Railway zone, and the first electric train ran on 15 December 1959. The first 25 kV AC EMUs, for Kolkata suburban service, was introduced in September 1962.[citation needed]
Organisation
The electrification office was established in Kolkata as the Project Office for Railway Electrification (PORE) in 1951 when electrification of the Howrah–Burdwan section of the Eastern Railway began. A general manager headed the Railway Electrification Organisation, established in Kolkata in 1959. In 1961, the Northern Railway zone electrification office (headed by an engineer-in-chief) was established in Allahabad for the electrification of the Mughalsarai–New Delhi section. Following the 1978 J. Raj Committee report, several electrification projects were included and a railway-electrification headquarters was established. Since most of the electrification projects were in Central India and South India, the electrification headquarters was established in Nagpur under an additional general manager from 1982 to 1984. The headquarters was moved to Allahabad under the additional general manager in January 1985 and was renamed Central Organisation for Railway Electrification (CORE). A general manager was appointed in July 1987.[citation needed]
Electrification progress
Trend of Railway Electrification Commissioning in India[2][5] | |||
---|---|---|---|
Period | Newly electrified (rkm) | Cumulative (rkm) | |
whole period | annualised | ||
1925-1947 | 388 | 18 | 388 |
1947-1951 | 0 | 0 | 388 |
1951-1956 | 141 | 28 | 529 |
1956-1961 | 216 | 43 | 745 |
1961-1966 | 1,678 | 336 | 2,423 |
1966-1969 | 814 | 271 | 3,237 |
1969-1974 | 953 | 191 | 4,190 |
1974-1978 | 533 | 133 | 4,723 |
1978-1980 | 195 | 65 | 4,918 |
1980-1985 | 1,522 | 304 | 6,440 |
1985-1990 | 2,812 | 562 | 9,252 |
1990-1992 | 1,557 | 519 | 10,809 |
1992-1997 | 2,708 | 542 | 13,517 |
1997-2002 | 2,484 | 621 | 16,001 |
2002-2007 | 1,810 | 362 | 17,811 |
2007-2008 | 502 −168 |
334 | 18,145 |
2008-2009 | 797 | 797 | 18,942 |
2009-2010 | 1117 | 1117 | 20,059 |
2010-2014 | 741 | 185 | 21,801 |
2014-2015 | 1,176 | 1,176 | 22,997 |
2015-2016 | 1,502 | 1,502 | 24,479 |
2016-2017 | 1,646 | 1,646 | 26,125 |
2017-2018 | 4,087 | 4,087 | 30,212 |
2018-2019 | 5,276 | 5,276 | 35,488 |
2019-2020 | 4,378 | 4,378 | 39,866 |
2020-2021 | 6,015 | 6,015 | 45,881 |
2021-2022 | 6,366 | 6,366 | 52,247 |
2022-2023 | 6,565 | 6,565 | 58,812 |
2023-2024 | 4,644 | 4,644 | 63,456 |
Graphs are unavailable due to technical issues. There is more info on Phabricator and on MediaWiki.org. |
Status
Electrified network by state (broad gauge only) as of 1 April 2024[2] | |||
---|---|---|---|
State | Total route km |
Electrified route km |
% Electrification (BG to BG) |
Andhra Pradesh | 3,841 | 3,841 | 100.00 |
Arunachal Pradesh | 12 | 0 | 0.00 |
Assam | 2,533 | 1,242 | 49.03 |
Bihar | 3,768 | 3,768 | 100.00 |
Chandigarh | 16 | 16 | 100.00 |
Chhattisgarh | 1,253 | 1,253 | 100.00 |
Delhi | 183 | 183 | 100.00 |
Goa | 186 | 164 | 88.17 |
Gujarat | 4,087 | 3,830 | 93.71 |
Haryana | 1,769 | 1,769 | 100.00 |
Himachal Pradesh | 67 | 67 | 100.00 |
Jammu & Kashmir | 350 | 350 | 100.00 |
Jharkhand | 2,558 | 2,558 | 100.00 |
Karnataka | 3,615 | 3,427 | 94.80 |
Kerala | 1,046 | 1,046 | 100.00 |
Madhya Pradesh | 4,911 | 4,911 | 100.00 |
Maharashtra | 5,742 | 5,742 | 100.00 |
Manipur | 13 | 0 | 0.00 |
Meghalaya | 9 | 9 | 100.00 |
Mizoram | 2 | 0 | 0.00 |
Nagaland | 11 | 11 | 100.00 |
Odisha | 2,866 | 2,866 | 100.00 |
Puducherry | 21 | 21 | 100.00 |
Punjab | 2,288 | 2,288 | 100.00 |
Rajasthan | 5,961 | 5,565 | 93.36 |
Sikkim | 0 | 0 | n/a |
Tamil Nadu | 3,659 | 3,659 | 100.00 |
Telangana | 1,923 | 1,923 | 100.00 |
Tripura | 267 | 153 | 57.30 |
Uttar Pradesh | 8,541 | 8,541 | 100.00 |
Uttarakhand | 347 | 347 | 100.00 |
West Bengal | 4,016 | 3,906 | 97.26 |
Total (BG) | 65,861 | 63,456 | 96.35 |
Electrified network by zone (broad gauge only) as of 1 April 2024[2] | |||
---|---|---|---|
Zone | Total route km |
Electrified route km |
% Electrification (BG to BG) |
CR | 3,929 | 3,929 | 100.00 |
ER | 2,782 | 2,782 | 100.00 |
ECR | 4,135 | 4,135 | 100.00 |
ECOR | 2,965 | 2,965 | 100.00 |
NR | 7,215 | 7,215 | 100.00 |
NCR | 3,273 | 3,273 | 100.00 |
NER | 3,220 | 3,220 | 100.00 |
NFR | 4,124 | 2,582 | 62.61 |
NWR | 5,550 | 5,100 | 91.89 |
SR | 4,801 | 4,801 | 100.00 |
SCR | 6,225 | 6,128 | 98.44 |
SER | 2,753 | 2,753 | 100.00 |
SECR | 2,402 | 2,402 | 100.00 |
SWR | 3,340 | 3,227 | 96.62 |
WR | 5,268 | 5,065 | 96.15 |
WCR | 3,091 | 3,091 | 100.00 |
KRCL | 738 | 738 | 100.00 |
Kolkata Metro | 50 | 50 | 100.00 |
Total (BG) | 65,861 | 63,456 | 96.35 |
Modernisation
Equipment
To reduce maintenance costs and improve the reliability of power supply systems, CORE has adopted state-of-the-art technology:
SCADA
The 220-132-25 kV power-supply network for electrification extends along the track for about 200 to 300 kilometres (120 to 190 mi). It is remotely controlled from the division control centre to ensure an uninterrupted power supply to the track overhead equipment. In electrification projects, a microprocessor-based supervisory control and data acquisition control system is replacing the earlier electro-mechanical Strowger system of remote-control equipment. SCADA can telemeter voltage, current, maximum demand and power factor in real-time, enabling control of maximum demand and electrical cost. The system also provides automatic troubleshooting and isolation of faulty sections.[citation needed]
Other organisations involved in electrification
Some electrification projects have been entrusted to other agencies like
See also
References
- ^ a b "Home page", Central Organisation for Railway Electrification, Ministry of Railways, Government of India, retrieved 24 May 2021
- ^ a b c d "Status of Railway Electrification (as on 01.04.2024)" (PDF). indianrailways.gov.in. Retrieved 25 April 2024.
- ^ "Central Railway completes DC to AC conversion". Hindustan Times. 11 April 2016. Retrieved 11 April 2023.
- ^ "Indian Railways" (PDF). indianrailways.gov.in. Retrieved 21 February 2022.
- ^ "Railway Electrification". indianrailways.gov.in.