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The Indian locomotive class WAG-9 is a class of 25 kV AC electric locomotives that was developed in 1995 by ABB Group (ABB) for Indian Railways. The model name stands for broad gauge (W), AC Current (A), Goods traffic (G), 9th generation (9) locomotive. They entered service in 1996. A total of 4192 WAG-9 have been built at Chittaranjan Locomotive Works (CLW), with more units being built at Banaras Locomotive Works (BLW), Bharat Heavy Electricals Limited (BHEL) and Patiala Locomotive Works (PLW). It was the most powerful freight locomotive of its fleet until the formal introduction of the WAG-12.
The Indian locomotive class WAG-7 is a class of 25 kV AC electric locomotives that was developed in 1990 by Chittaranjan Locomotive Works for Indian Railways. The model name stands for broad gauge (W), alternating current (A), goods traffic (G) engine, 7th generation (7). They entered service in 1992. A total of 1970 WAG-7 were built at CLW and BHEL between 1990 and 2015, which made them the most numerous class of mainline electric locomotive till its successor the WAG-9.
The Indian locomotive class WAG-5 is a class of 25 kV AC electric locomotives that was developed in 1978 by Chittaranjan Locomotive Works for Indian Railways. The model name stands for broad gauge (W), alternating current (A), goods traffic (G) engine, 5th generation (5). They entered service in 1980. A total of 1196 WAG-5 were built at CLW and BHEL between 1978 and 1998, which made them the most numerous class of mainline electric locomotive till its successor the WAG-7.
The Indian locomotive class WAM-4 is a class of 25 kV AC electric locomotives that was developed in 1970 by Chittaranjan Locomotive Works for Indian Railways. The model name stands for broad gauge (W), alternating current (A), mixed traffic (M) locomotive, 4th generation (4). They entered service in March 1971. A total of 500 WAM-4 were built at CLW between 1970 and 1983, which made them the most numerous class of mainline electric locomotive till its successor the WAG-5.
The Indian locomotive class WCAM-1 is a class of Bi-current electric locomotives that was developed in 1973 by Chittaranjan Locomotive Works for Indian Railways. The model name stands for broad gauge (W), DC Current (C), AC Current (A), Mixed traffic (M) locomotive, 1st generation (1). They entered service in March 1973. A total of 53 WCAM-1 were built at CLW between 1973 and 1979, which made them the most numerous class of mainline dual-power AC-DC electric locomotive.
The Indian locomotive class WCAM-2 is a class of dual-power AC/DC series electric locomotives that was developed in 1995 by Bharat Heavy Electricals Limited used in the Indian Railways system. They are the second locomotive from the WCAM class. The model name stands for broad gauge (W), DC Current (C), AC Current (A), Mixed traffic (M) locomotive, 2nd generation (2). They entered service in 1995. A total of 20 WCAM-2 were built at BHEL between 1995 and 1996, which made them the most numerous class of mainline dual-power AC-DC electric locomotive. They use the same motors as WCAM 1 but with different circuitry and gearing. They are operational in routes around Mumbai. MU operation was possible with 3 units. WCAM-2P was the passenger-oriented version of the WCAM-2 class. However, they perform better than the WCAM 1 series. Same as WCAM 1 class they also performed poorly in DC mode compared to AC mode. They were also used for hauling trains away from the DC section of suburban trains to AC section and performed the same task as the WCAM-1 did. WCAM-2 locos had the same traction motors, as the WCAM-1 locos, but different circuitry and gearing. The bogies are somewhat different from those of the WCAM-1 being fabricated trimount Co-Co bogies with secondary suspension. Rated speed 105 km/h in DC mode and 120 km/h in AC mode.. Almost all of these were dual-braked, but all are now equipped with air brakes only. All the WCAM-1's and -2's were homed at Valsad shed in Gujarat. Many of CR's WCAM-2 locos were not used much in DC zones as they delivered very poor performance in DC mode and on CR's heavy grades. Although these locos have the same traction motors as the WAM 4 and WCAM 1, the power output from the WCAM-2 locos is higher than for the WAM-4 and WCAM-1 because in those models the traction motors were underfed and did not yield their potential maximum power. Under AC traction, the WCAM-2 locos operate with all six motors in parallel, while in DC mode they also operate in the all-series and series-parallel configurations. Recent WCAM-2's from BHEL, including the passenger-specific version WCAM-2P, were rated 2916 hp in DC mode and 4715 hp in AC mode. These were used by WR and CR for fast trains, running at up to 120 km/h. CR had tried the WCAM-2 and WCAM-2P units but found them usable only with speed restrictions. Some WCAM-2P units had only air brakes. With the WCAM-2 locos, MU operation was possible with up to 3 (4?) units. Some (all?) of the WCAM-2 locos were originally leased to IR, ownership remaining with BHEL, the manufacturers.
The Indian locomotive class WDM-4 is a class of diesel-electric locomotive that was developed in 1962 by Electro-Motive Diesel for Indian Railways. The model name stands for broad gauge (W), Diesel (D), Mixed traffic (M) engine, 4th generation (4). They entered service in 1962. A total of 72 WDM-4 locomotives were built between 1961 and 1962.
The Indian locomotive class WCAM–3 is a class of dual-power AC/DC series electric locomotives That was developed in 1997 by Bharat Heavy Electricals Limited used in the Indian Railways system. They are the third locomotives from the WCAM class. The model name stands for broad gauge (W), DC Current (C), AC Current (A), Mixed traffic (M) locomotive, 3rd generation (3). They entered service in 1997. A total of 53 WCAM-3 were built at BHEL between 1997 and 1998, which made them the most numerous class of mainline dual-power AC-DC electric locomotive. They were specifically designed for use by Central Railways in the Ghat section towards Nashik and Pune.
The Indian locomotive class WCG-2 is a class of 1.5 kV DC electric locomotives that was developed in the late 1960s by Research Design and Standards Organisation (RDSO) and Chittaranjan Locomotive Works (CLW) for Indian Railways. The model name stands for broad gauge (W), DC Current (C), Goods traffic (G) engine, 2nd generation (2). They entered service in February 1971. A total of 57 WCG-2 were built at CLW between 1978 and 1983, which made them the most numerous class of DC electric locomotive.
The Indian locomotive class WCAG–1 is a class of dual-power AC/DC series locomotives used in the Indian Railways system. They are the only class of the WCAG locomotives. They were specifically designed for use by Central Railways in the Ghat section towards Nashik and Pune.
The Indian locomotive class WCM-1 is a class of 1.5 kV DC electric locomotives that was developed in 1954 by Vulcan Foundry and English Electric for Indian Railways. The model name stands for broad gauge (W), Direct Current (C), Mixed traffic (M) engine, 1st generation (1). They entered service in 1955. A total of 7 WCM-1 locomotives were built in England between 1954 and 1955.
The Indian locomotive class WCM-2 is a class of 1.5 kV DC electric locomotives that was developed in 1956 by Vulcan Foundry and English Electric for Indian Railways. The model name stands for broad gauge (W), Direct Current (C), Mixed traffic (M) engine, 2nd generation (2). They entered service in 1957. A total of 12 WCM-2 locomotives were built in England between 1956 and 1957.
The Indian locomotive class WCM-3 is a class of 1.5 kV DC electric locomotives that was developed in 1958 by Hitachi for Indian Railways. The model name stands for broad gauge (W), Direct Current (C), Mixed traffic (M) engine, 3rd generation (3). They entered service in 1958. A total of 3 WCM-3 locomotives were built in Japan in 1958.
The Indian locomotive class WAG-1 was a class of 25 kV AC electric locomotives that was imported from Europe in the 1960s for Indian Railways. The model name stands for broad gauge (W), AC Current (A), Goods traffic (G) locomotive, 1st generation (1). A total of 112 WAG-1 were built by The European Group 50 Hz Group/European Group/50 Cycles Group (consortium) between 1963 and 1966. They entered service in 1964.
The Indian locomotive class WAG-2 was a class of 25 kV AC electric locomotives that was imported from Japan in the 1960s for Indian Railways. The model name stands for broad gauge (W), AC Current (A), Goods traffic (G) locomotive, 2nd generation (2). A total of 45 WAG-2 were built by The Japanese Group between 1964 and 1965. They entered service in 1964.
The Indian locomotive class WAG-3 is a class of 25 kV AC electric locomotives that was imported from Europe in the mid 1960s for Indian Railways. The model name stands for broad gauge (W), AC Current (A), Goods traffic (G) engine, 3rd (3). A total of 10 WAG-3 locomotives were built by The European Group 50 Hz Group/European Group/50 Cycles Group (consortium) in 1965. They entered service in 1965.
The Indian locomotive class WAG-4 is a class of 25 kV AC electric locomotives that was manufactured by CLW in the late 1960s for Indian Railways. The model name stands for broad gauge (W), AC Current (A), Goods traffic (G) engine, 1st (1). A total of 186 WAG-4 locomotives were built by The European Group 50 Hz Group/European Group/50 Cycles Group (consortium) between 1967 and 1969. They entered service in 1967.
The Indian locomotive class WAG-6A is a class of 25 kV AC electric locomotives that was developed in the 1988 by Allmänna Svenska Elektriska Aktiebolaget (ASEA) for Indian Railways. The model name stands for broad gauge (W), AC Current (A), Goods (G) engine, 6th generation (6) First variant (A). They entered service in 1988. A total of 6 WAG-6A were built at ASEA, Sweden between 1987 and 1988. they were the most powerful locomotives in India until the arrival of the WAG-9 class.
The Indian locomotive class WAG-6B/C is a class of 25 kV AC electric locomotives that was developed in the 1988 by Hitachi for Indian Railways. The model name stands for broad gauge (W), AC Current (A), Goods (G) engine, 6th generation (6) Second/Third variant (B/C). They entered service in 1988. A total of 12 WAG-6 were built at Hitachi, Japan between 1987 and 1988. they along with WAG-6A were the most powerful locomotives in India until the arrival of the WAG-9 class.
References
Notes
- ↑ "[IRFCA] Indian Railways FAQ: Locomotives - General Information - I". www.irfca.org. Retrieved 18 April 2020.
- ↑ Naphade, Ankit. "2906557-0: The only WAG-8 prototype of India, lying - Railway Enquiry". indiarailinfo.com. Retrieved 24 May 2020.
- ↑ "Diesel Locomotive Roster – The WAG Series". 24 Coaches. 30 October 2013. Retrieved 29 April 2020.
Bibliography
- Hughes, Hugh (1996). Indian Locomotives: Part 4 – 1941–1990. Harrow, Middlesex: The Continental Railway Circle. ISBN 0-9521655-1-1. OCLC 35135033.
