Chittaranjan Locomotive Works

Chittaranjan Locomotive Works
legal form	State company
founding	January 26, 1950
Seat	Chittaranjan , India
management	CP Tayal (CEO)
Branch	Locomotive construction
Website	www.clw.indianrailways.gov.in

Chittaranjan Locomotive Works (CLW) is an Indian manufacturer of locomotives located near Asansol . The state-owned company owned by Indian Railways started production in 1950 and is now one of the world's largest locomotive manufacturers. It is named after the statesman and freedom fighter Deshbandhu Chittaranjan .

history

In the late 1930s, it was investigated whether building a locomotive factory would be economically viable. First a place north of Kolkata near Kanchrapara was considered, but the idea could not be pursued because of the division of India . In December 1947 it was decided to build the plant near Mihijam about 32 km from Asansol and 237 km from Kolkata, in a place where there was both suitable underground for the construction of the factory buildings and sufficient energy from hydroelectric and thermal power plants would be available. The project was originally called Loco Building Work and was only given the new name when it opened on January 26, 1950, when the Constitution of India came into force.

Initially steam locomotives were manufactured, from 1961 electric locomotives for 1500 V direct current and from 1963 those for 25 kV 50 Hz alternating current . From 1967 DC traction motors and contactors were built. In 1968 the production of diesel-hydraulic locomotives was added. Steam locomotive construction was discontinued in 1974 after 2,351 steam locomotives from five different series left the factory. The construction of diesel locomotives was discontinued in 1994 after 842 locomotives of seven different series were built.

In 1998, the construction of electric locomotives with asynchronous motors began , which were initially built with GTO converters and from November 2015 only with IGBT converters. The construction of conventional electric locomotives with tap changers , rectifiers and mixed current motors was stopped in December 2015.

Production numbers

• From 1950 to 1972: 2,351 steam locomotives
• From 1968 to 1993: 842 diesel locomotives
• From 1961 to March 2014: 5,270 electric locomotives

Manufactured locomotives

Current production

Electric locomotives 25 kV 50 Hz alternating current

model series	number	Construction year	commitment	Axis formula	image
WAP-5	99	1997–	Express trains	Bo'Bo '
WAP-7	462	2000–	heavy express trains	Co'Co '
WAG-9	748	1996–	Freight trains	Co'Co '

Historic production

Steam locomotives

model series	number	Construction year	commitment	Axis formula	image
Flat share	1908	1950-1970	Freight trains	1′D1 ′ h2
WT	30th	1959-1967	Calcutta local trains	1′D2 ′ h2t	(without picture)
WP / 1	259	1963-1966	Express trains	2′C1 ′ h2
WL	94	1966-1969	Passenger trains on Routes with less permissible axle load	2′C1 ′ h2
YG	about 500	approx. 1950–1972	Freight trains Meter gauge network	1′D1 ′ h2

Diesel hydraulic locomotives

model series	number	Construction year	commitment	Axis formula	image
WDS-4	609	1968-1997	Shunter	C.
WDS-8	5	1979-1982	Shunting locomotive for steel mill	Bo'Bo '	(without picture)
YDM-2	41	1986-1990	Narrow gauge locomotive	B'B '	(without picture)
NDM-5	11	1987-1989	Gwalior narrow-gauge railway	B'B '	(without picture)

Electric locomotives 1500 V DC

model series	number	Construction year	commitment	Axis formula	image
WCM-5	21st	1961-1963	Universal locomotive	Co'Co '	(without picture)
WCM-6	2	1995	Universal locomotive	Co'Co '	(without picture)
WCG-2	57	1970-1976	Freight trains	Co'Co '

Two-system electric locomotives 1500 V direct current and 25 kV 50 Hz alternating current

model series	number	Construction year	commitment	Axis formula	image
WCAM-1	53	1975-1979	Universal locomotive	Co'Co '

Electric locomotives 25 kV 50 Hz alternating current

model series	number	Construction year	commitment	Axis formula	image
WAG-1	112	1963-1966	Freight trains	B'B '
WAG-4	approx. 186	1966-1971	Freight trains	B'B '	(without picture)
WAG-5	1197	1988-1998	Freight trains	Co'Co '
WAG-7	1972	1992-2015	Freight trains	Co'Co '
WAM-4	about 500	1970-1997	Passenger trains	Co'Co '
WAP-1	approx. 77	1980-1992	Express trains	Co'Co '
WAP-3	5	1987	Express trains (Variant of the WAP-1)	Co'Co '	(without picture)
WAP-4	769	1990-2015	Express trains	Co'Co '
WAP-6	17th	1997	Express trains (Variant of the WAP-4)	Co'Co '	(without picture)

Individual evidence

1. ↑ Organization. CLW, March 19, 2016, accessed April 13, 2016 . 
2. ↑ SCI study: The railway market in Asia 2009–2014: actors, volumes, trends and forecasts
3. ↑ Ramarao Annavarapu: Trailing Window: A Journey into Rail History . Partridge Publishing, 2016, ISBN 978-1-4828-7121-0 ( Google Books ).
4. ^ History. (No longer available online.) CLW, September 1, 2015, archived from the original on March 9, 2016 ; accessed on April 13, 2016 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.  
5. ↑ History September 2 , 2015, accessed April 13, 2016 . 
6. ↑ About us. CLW, accessed April 13, 2016 . 
7. ↑ PJ Bawcutt: WT class 2-8-4T. (No longer available online.) In: Steam locomotives of India. Archived from the original on June 19, 2011 ; accessed on April 16, 2016 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.  
8. ↑ ^{a b} Diesel Locomotive Classes - Meter Gauge & Narrow Gauge. In: IRFCA. Retrieved April 15, 2016 . 
9. ↑ DC locomotives (part 2) & dual system locomotives. In: Indian Railways. P. Christener, accessed April 15, 2016 . 
10. ↑ Akshay Marathe: WCM-6 # 20188 at Karjat with a departmental rake. In: Trainspo. January 29, 2012, accessed April 15, 2016 . 
11. ^ Eastern Railway WAG-4. In: IRFAC. Retrieved April 16, 2016 .