TPWS (Train Protection and Warning System), Vigilance Control, Slip/Slide Control, Main Overload Relay, No Volt Relay, Over Voltage Protection and Earth Fault Relay
Indian locomotive class WAP-5 is a class of electric locomotives used by Indian Railways. The first ten locomotives were imported from ABB in Switzerland in 1995 and later manufactured by Chittaranjan Locomotive Works in India. On 3 July 2014, a WAP-5 set an Indian speed record by hauling a train between Delhi and Agra at a speed of 160km/h (99mph).[2] The locomotive has regenerative braking, flexible gear coupling, wheel-mounted disc brakes, and a potential for speed enhancement to 200km/h (120mph). Braking systems include 160kN (36,000lbf) regenerative brakes, disc brakes, automatic train air brakes and a charged spring parking brake.
In October 2015, a WAP-5A locomotive (no. 30086) was rolled-out with a gear ratio of 59:35:19 capable of speeds upto 200km/h (120mph) for trial runs. In March 2018, a WAP-5 locomotive (no. 30136) with an enhanced power output of 4,500 kilowatts (6,000hp) was released which was later adopted as a standard based on successful trials. Some locomotives of this class are equipped with "Head On Generation" (HOG) in which electric power from the locomotive's pantograph is transferred to the coaches instead of "End Of Generation" where a power car equipped with diesel generator is provided at either end of the train rake to supply power.[4][5][6] The first WAP-5 locomotive (no. 30140) with HOG was rolled by CLW in June 2018.
In October 2020, two WAP-5 locomotives (no. 35012 and 35013) were given an asymmetric body design with an aerodynamic profile for one cab and a blunt profile for another cab at the opposite end, which is intended to be semi-permanently coupled with a train in a push-pull configuration for Tejas Express services. The two locomotives have a power output of 6,000 horsepower (4,500kW) and will have a maximum speed of 160 kilometres per hour (99mph).[7] Two modified WAP-5 locomotives (35027 and 35028) are used to haul the Amrit Bharat Express in a similar push-pull configuration.[8][9]
Technical specifications
A 24 coach (1430t) passenger rake can be accelerated to 110 km/h in 312.1 seconds (over 6 Km), to 120 km/h in 402sec (6.9km); and to 130km/h in 556 sec (14.2km) by a WAP5.[10][11] Specifications are as follows:[12]
Type: UW-2423-2810 SG 3000G X H24 GTO thyristors (D 921S45 T diodes), 14 thyristors per unit (two units). Line converter rated at 2 x 1269 V @ 50Hz, with DC link voltage of 2800 V. Drive converter rated at 2180 V phase to phase, 953 A output current *per phase, motor frequency from 0 to 160.3Hz.
IGBT
IGBT type 5SNA 1200G450300
2105kW, individual axle control configuration, MITRAC software, water cooled. Newer locomotives have IGBT based propulsion system.
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Indian Railways (IR) is a statutory body under the ownership of the Ministry of Railways of the Government of India that operates India's national railway system. As of 2023, it manages the fourth largest national railway system by size with a running track length of 104,647 km (65,025 mi) and route length of 68,426 km (42,518 mi) of which 60,451 km (37,563 mi) is electrified. With more than 1.2 million employees, it is the world's ninth-largest employer and India's second largest employer.
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The Indian locomotive class WAP-7 is a class of 25 kV AC electric locomotives that was developed in 1999 by Chittaranjan Locomotive Works (CLW) for Indian Railways. The model name stands for broad gauge (W), AC Current (A), Passenger traffic (P) locomotive, 7th generation (7). They entered service in 2000. A total of 1676 WAP-7 have been built, with more units being built at CLW, Banaras Locomotive Works (BLW) and Patiala Locomotive Works (PLW).
Chittaranjan Locomotive Works (CLW) is an electric locomotive manufacturer based in India. The works are located at Chittaranjan in the Asansol Sadar subdivision of West Bengal, with an ancillary unit in Dankuni. The main unit is 32 km from Asansol and 237 km from Kolkata. CLW has stores and offices in Kolkata, as well as inspection cells in New Delhi, Mumbai, Kolkata, and Bangalore. It is the largest locomotive manufacturer unit in the world, producing 431 locomotives in 2019–20.
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Indian Railways operates India's railway system and comes under the purview of the Ministry of Railways of Government of India. As of 2023, it maintains over 108,706 km (67,547 mi) of tracks and operates over 13,000 trains daily. According to the Ministry of Railways, a route capable of supporting trains operating at more than 160 km/h (100 mph) is considered as a higher speed or semi-high speed rail line.
India has a system of express trains, operated by Indian Railways which comes under the purview of the Ministry of Railways of Government of India. As of 2023, it maintains over 108,706 km (67,547 mi) of tracks and operates nearly 3,000 express trains daily. According to the Ministry of Railways, express trains travel faster and have limited stops than ordinary passenger trains. Any passenger train with an average speed higher than 55 km/h (34 mph) is considered super-fast.
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 Howrah–New Jalpaiguri Shatabdi Express is a Shatabdi class train of Indian Railways connecting Kolkata and Siliguri, West Bengal's two most important cities. It is the second fastest train after Howrah–New Jalpaiguri Vande Bharat Express in the Howrah – New Jalpaiguri section covering a distance of 561 km in a span of about 8 hours.
The Indian Government is undertaking several initiatives to upgrade its aging railway infrastructure and enhance its quality of service. The Railway Ministry has announced plans to invest ₹5,400,000 crore to upgrade the railways by 2030. Upgrades include 100% electrification of railways, upgrading existing lines with more facilities and higher speeds, expansion of new lines, upgrading railway stations, introducing and eventually developing a large high-speed train network interconnecting major cities in different parts of India and development of various dedicated freight corridors to cut down cargo costs within the country.
The Delhi–Mumbai line is a major railway line in India. Linking the national capital of New Delhi with financial capital Mumbai, this railway line covers a distance of 1,386 kilometres (861 mi) across the Indian states of Delhi, Haryana, Uttar Pradesh, Madhya Pradesh, Rajasthan, Gujarat and Maharashtra. Mumbai Tejas-Rajdhani Express which is the fastest Tejas-Rajdhani Express and the fastest train on this route, travels on this line and covers the distance between Delhi and Mumbai in 15 hours and 32 minutes at a top speed of 130km/h and a top average speed of 89 km/h.
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