WAG-11 | |||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| |||||||||||||||||||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||||||||||||||||||
currently undergoing trials |
The Indian locomotive class WAG-11 is a class of twin-section 25 kV AC electric locomotives that was developed in 2018 by Banaras Locomotive Works (BLW), Varanasi for Indian Railways. This freight engine has been designed for 105-km/hourspeed and weighs 252 tons. It is equipped with three-phase induction motor,four power converters and regenerative as well as pneumatic braking system. [1] The model name stands for broad gauge (W), Alternating Current (A), Goods traffic (G), and 11th in series (11). They entered trials service in 2019. A total of 4 WAG-11 pairs have been built by Banaras Locomotive Works (BLW), Varanasi.
As of January 2023, 4 locomotives are built and are undergoing "testing", with further examples being converted from WDG-4 to WAG-11.
The history of WAG-11 begins in the early 2017 with the stated aim of the Indian Railways to minimize the dependence on diesel locomotives in Indian Railways after recommendation of Cabinet Committee on Economic Affairs (CCEA). [2] [3] The committee recommended that Expansion of electrified routes across the country will also help in reducing energy cost. [4] Therefore, a large number of WDG-4 diesel locomotives would become surplus after full electrification. [5] Thus Indian Railways decided to convert existing WDG-4 locomotives which needed midlife overhaul into the WAG-11 electric locomotive class.
The same old GT46MAC (WDG-4) traction motors are being used for WAG11. The locomotives had GTO propulsion, a few parts can not be leveraged for the rebuilt to IGBT technology. However, since the power supply now comes from the WAG9 transformer / control, ABB has been updating its WAG9 control software for the EMD 3 phase traction motors for best results. [6] As a result, the diesel power pack of the locomotive will be decommissioned and used as spare parts for interim use since there are still 150+ more GTO WDG-4 in use.
The First WAG-11 unit was allocated TKD for trials and performance monitoring. [7] They are fitted with high rise pantographs and have regenerative braking. [8] After initial testing another unit was built and these 2 locomotives were transferred to Bondamuda (BNDM) for examining working conditions hauling heavy load goods trains. [9] The third prototype 29003 came out of DLW shop but this one is different from the previous two because both the locos have twin cabs and twin pantographs. It looks like they can be separately operated like any regular WAG-9. Also the height and construct of these two locos are extremely similar to WAG9s.
There are quite a few differences between the two earlier prototypes of WAG11 and 29003. They are in the following lines: [10]
No | Current class | locomotive number | Previous class and Road no | Previous shed | Status |
---|---|---|---|---|---|
1 | WAG-11 | 29001 | WDG-4 (12011 & 12018) | Hubli (UBL) | Currently undergoing trials |
2 | WAG-11 | 29002 | WDG-4 (12014 & 12017) | Hubli (UBL) | Currently undergoing trials |
3 | WAG-11 | 29003 | WDG-4 (12012 & 12013) | Hubli (UBL) | Currently undergoing trials |
S.N. | Version 1 (29001) | Version 2 (29002) | Version 3 (29003/4) |
---|---|---|---|
1 | Transformer mounted on board. | Transfer under slung mounted. | Transfer under slung mounted. |
2 | Transformer common to WAP7/WAG9. | New design transformer used. | Transformer common to WAG9. |
3 | New equipment layout in which both power converters were on left side of loco. One before transformer other behind it. | Equipment layout similar to WAG9. Both power converters centrally placed above the transformer. | Equipment layout similar to WAG9. |
4 | Under slung battery box of WAG9/WAP7 used. | Battery placed on board. | Under slung battery box of WAG9/WAP7 used. |
5 | One end cab used. | One end cab used. | Both end cab with HVAC as in WAG9. |
6 | Side wall modified from WAP7 side wall and length increased by approx 3 mtr. | Side wall modified from WAP7 side wall and length increased by approx 3 mtr. | Side wall and both cabs same as in WAG9. |
7 | Roofs made in 5 parts due to location of power converter and MMD height. | Roof made in 4 parts only as both the traction converters are placed centrally. | Roof in 3 parts same as in WAP7/WAG9. |
8 | Uderframe made by modifying WGD4 underframe. | Uderframe made by modifying WGD4 underframe. | Underframe made by modifying WAP7 underframe. |
Advantages of WAG 11 (version 3) over WAG 11 with modified under slung transformer- 1 No need to modify WDG4 underframe, particularly partially cutting Center Sill, I Beam and bottom plate. 2 Exactly similar layout of WAG9 used. 3 Transformer common to WAG9. 4 Can also work as a single unit. 5 Cost reduction due to use of complete shell similar to WAG9 (with some changes for ensuring interfacing with WDG4 MTA) |
1 | Type of Service | Freight |
2 | Axle Arrangement | Twin Co-Co |
3 | Horse power | 2x6000 HP |
4 | Tractive effort (Stall, Continuous) | 2x540 KN (Stall), 2x400 KN (Continuous) |
5 | Speed Potential | 95 kmph (As per final speed certificate) |
6 | Gear Ratio | 17:90 |
7 | Length over buffer | 2x21244 mm |
8 | Overall width | 3180 mm |
9 | Max. height with pantograph locked | 4255 mm |
10 | Total weight | 2x126 T |
11 | Traction Motor | 2x6 nos, 3-phase induction motor |
12 | Power of TM (KW) | 703 (Continuous), 758 (one hour rating) |
13 | Braking | Regenerative, Pneumatic |
14 | Braking effort | 2x270 KN |
15 | Power supply to aux 1, 2, 3 converter | 415 V +/- 10%, 0 to 50 Hz |
16 | Battery voltage | 110 V |
17 | Power supply to TM | 2180 V |
18 | No of power converters | 2 |
Railway Board sent a circular to identify 16 WDG-4 locos that would be converted to WAG-11 during the financial year 2020–2021. [13]
No | locomotives class | Previous shed | locomotive number | Status | ref |
---|---|---|---|---|---|
1. | WDG-4 | Hubli (UBL) | 12002 | to be converted in 2020-2021 by NR | [14] |
2. | WDG-4 | Hubli (UBL) | 12003 | conversion scheduled for March 2020 | [15] |
3. | WDG-4 | Hubli (UBL) | 12004 | conversion scheduled for March 2020 | [16] |
4. | WDG-4 | Hubli (UBL) | 12005 | to be converted in 2020-2021 by NR | [17] |
5. | WDG-4 | Hubli (UBL) | 12006 | to be converted in 2020-2021 by NR | [18] |
6. | WDG-4 | Hubli (UBL) | 12007 | converted to WAG-11 #29002 | [19] |
7. | WDG-4 | Hubli (UBL) | 12008 | conversion scheduled for March 2020 | [20] |
8. | WDG-4 | Hubli (UBL) | 12009 | conversion scheduled for March 2020 | [21] |
9. | WDG-4 | Hubli (UBL) | 12010 | scheduled for March 2020 | [22] |
10. | WDG-4 | Hubli (UBL) | 12011 | converted to 'WAG-11' #29001 | [23] |
11. | WDG-4 | Hubli (UBL) | 12012 | converted to 'WAG-11' #29003 | [24] |
12. | WDG-4 | Hubli (UBL) | 12013 | converted to 'WAG-11' #29003 | [25] |
13. | WDG-4 | Hubli (UBL) | 12014 | converted to 'WAG-11' #29002 | [26] |
14. | WDG-4 | Hubli (UBL) | 12015 | to be converted in 2020-2021 by SR | [27] |
15. | WDG-4 | Krishnarajapuram (KJM) | 12016 | to be converted in 2020-2021 by SR | [28] |
16. | WDG-4 | Hubli (UBL) | 12017 | converted to 'WAG-11' #29002 | [29] |
17. | WDG-4 | Hubli (UBL) | 12018 | converted to 'WAG-11' #29001 | [30] |
18. | WDG-4 | Hubli (UBL) | 12019 | to be converted in 2020-2021 by SR | [31] |
19. | WDG-4 | Hubli (UBL) | 12020 | to be converted in 2020-2021 by SR | [32] |
20. | WDG-4 | Krishnarajapuram (KJM) | 12021 | to be converted in 2020-2021 by SR | [33] |
21. | WDG-4 | Hubli (UBL) | 12022 | to be converted in 2020-2021 by SER | [34] |
22. | WDG-4 | Hubli (UBL) | 12023 | to be converted in 2020-2021 by SER | [35] |
23. | WDG-4 | Hubli (UBL) | 12024 | to be converted in 2020-2021 by SER | [36] |
24. | WDG-4 | Krishnarajapuram (KJM) | 12025 | to be converted in 2020-2021 by SR | [37] |
25. | WDG-4 | Krishnarajapuram (KJM) | 12026 | to be converted in 2020-2021 by SCR | [38] |
26. | WDG-4 | Krishnarajapuram (KJM) | 12027 | to be converted in 2020-2021 by SCR | [39] |
27. | WDG-4 | Krishnarajapuram (KJM) | 12028 | to be converted in 2020-2021 by SCR | [40] |
28. | WDG-4 | Krishnarajapuram (KJM) | 12029 | to be converted in 2020-2021 by SCR | [41] |
29. | WDG-4 | Krishnarajapuram (KJM) | 12030 | to be converted in 2020-2021 by SER | [42] |
Zone | Name | Shed code | Quantity |
---|---|---|---|
SER | Bondamunda | BNDM | 4 |
Total Locomotives Active as of January 2023 | 4 |
The Indian locomotive class WDM-2 is a class of diesel-electric locomotive that was developed in 1962 by American Locomotive Company (ALCO) for Indian Railways. The model name stands for broad gauge (W), Diesel (D), Mixed traffic (M) engine, 2nd generation (2). They entered service in 1962. A total of more than 2,700 WDM-2 was built at ALCO and Banaras Locomotive Works, Varanasi between 1962 and 1998, which made them the most numerous class of mainline diesel locomotive until its successor the WDM-3A.
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 WDP-4 is a passenger-hauling diesel-electric locomotive with AC electric transmission designed by General Motors Electro-Motive Division and built by both GM-EMD and under license by Banaras Locomotive Works (BLW) of Varanasi, India for Indian Railways as the classes WDP4, WDP4B and WDP4D. The GT46PAC is a passenger version of the previous Indian Railways EMD GT46MAC freight locomotive. The locomotive has a 16-cylinder 710G3B diesel engine and is one of the fastest diesel-electric locomotives in service in Indian Railways.
The ALCO DL560C is a series of diesel-electric locomotive with AC electric transmission designed by the American Locomotive Company and produced under license by Banaras Locomotive Works (BLW) Varanasi, India for Indian Railways as their classes WDM-2, WDM-3A/2C, WDM-3D and WDG-3A for operation in India. The locomotive is fitted with a 16-cylinder ALCO 251 B,C diesel engine. In the early 1960s Indian Railways needed a reliable diesel workhorse to gradually replace its steam locomotive fleet. Equal numbers of ALCO's DL560C and EMD's G16 were chosen for trials. More locomotives of each of these were purchased for more trials. Indian Railways was keen on producing these locomotives in the country rather than depending on imports. EMD did not agree for a Transfer-of-Technology, while ALCO did. Thus ALCO DL560C was chosen for the job due to its easy maintenance, reliability and simple operation. And from then on vast numbers of this loco in different configurations have been produced and remain the main diesel traction power of Indian Railways.
The Agra–Bhopal section is a railway line connecting, Agra, one of large city in Uttar Pradesh, and Bhopal, capital of the Indian state of Madhya Pradesh. This 508 km (316 mi) track is part of the Delhi–Chennai line. The line is under the jurisdiction of North Central Railway and West Central Railway.
The Nagpur–Secunderabad line is a railway line connecting Nagpur and Secunderabad. A major portion of this 581-kilometre long (361 mi) track, from Nagpur to Kazipet, is part of the Delhi–Chennai line. It is also part of the Delhi–Hyderabad line. The line is under the jurisdiction of Central Railway and South-Central Railway.
Guntakal Junction railway station is located in Anantapur district in the Indian state of Andhra Pradesh and serves Guntakal. It is also the headquarters of Guntakal railway division in South Central Railway. It is a junction station at the intersection point of the Mumbai–Chennai line, the Vijayawada–Marmagova line and the Guntakal–Bengaluru line.
The Chennai Central – Bangalore City line is an electrified railway double line which connects Chennai and Bengaluru, the two largest cities in South India. It is officially known as Puratchi Thalaivar Dr. M.G. Ramachandran Central Railway Station–Krantivira Sangolli Rayanna line, and earlier known as Madras–Bangalore line.
The Jolarpettai–Shoranur line connects Jolarpettai, on the Chennai Central–Bangalore City line in the Indian state of Tamil Nadu and Shoranur in Kerala. Incoming from Chennai side via Arakkonam and Katpadi at Jolarpettai,the railway lines further branches out towards Kozhikode, Nilambur and Thrissur sides in Shoranur. This network links the railway network in Kerala to the networks in Tamil Nadu and subsequently other states.
Hubballi Junction, officially Shree Siddharoodha Swamiji Hubballi Junction, or simply Hubli Junction, is a railway junction station under Hubballi railway division of South Western Railway zone (SWR) of Indian Railways situated in Hubli, Karnataka, India. The platform number 1 of Hubli Junction has a length of 1,507 metres, making it the longest railway platform in the world as of March 2023.
The class YDM-4 is Indian Railways' workhorse diesel locomotive. The first units were imported fully built from the American Locomotive Company (Alco) in 1961. Since 1968, it has been manufactured in India by the Banaras Locomotive Works (BLW), Varanasi. The model name stands for metre gauge (Y), diesel (D), mixed traffic (M) engine. The YDM-4 has been the most successful diesel locomotive in the metre gauge operation of Indian Railways. The YDM-4A is a variant of the YDM-4 supplied by MLW. Originally equipped with vacuum brakes. Some were later equipped with dual brakes, particularly those working in the Northeast Frontier Railway were retrofitted with dual brake system by Lumding shed. The YDM-4 locos have a maximum speed of 100 km/h (62 mph), restricted to 85 km/h (53 mph).
Diesel Loco Shed, Gooty is an engine shed located in Gooty, Andhra Pradesh in India. It falls under the jurisdiction of Guntakal railway division of South Central Railway zone.
The Indian locomotive class WDM-3D is a class of diesel-electric locomotive that was developed in 2003 by Banaras Locomotive Works (BLW), Varanasi for Indian Railways. The model name stands for broad gauge (W), Diesel (D), Mixed traffic (M) engine with 3300 horsepower (3D). The engine is classified WDM-3D though it outputs only 3300 hp and not 3400 hp as the name should suggest. They entered service in 2003. A total of 590+ WDM-3D were built at Banaras Locomotive Works (BLW), Varanasi between 2003 and 2016.
The Indian locomotive class WDG-3A is a class of diesel-electric locomotive that was developed in 1994 by Banaras Locomotive Works (BLW),Varanasi for Indian Railways. The model name stands for broad-gauge (W), Diesel (D), Goods traffic (G) engine, 3,100 hp (3A) locomotive. They entered service on 18 July 1995. A total of 1,164 WDG-3A units were built between 1994 and 2015 at BLW, Varanasi with a few units being produced by Diesel Loco Modernisation Works (DLMW) and Parel Workshop.
The Indian locomotive class YDM-5 is a class of diesel-electric locomotive that was developed in 1964 by General Motors (GM-EMD) for Indian Railways. The model name stands for Metre gauge (Y), Diesel (D), Mixed traffic (M) engine, 5th generation (5). They entered service in 1964. A total of 25 YDM-5 locomotives was built between 1963 and 1964.
The Indian locomotive class YDM-3 is a class of diesel-electric locomotive that was developed in 1964 by GM-EMD for Indian Railways. The model name stands for Metre gauge (Y), Diesel (D), Mixed traffic (M) engine, 3rd generation (3). They entered service in 1962. A total of 30 YDM-3 locomotives was built between 1961 and 1962.
Diesel Loco Shed, Abu Road is a motive power depot performing locomotive maintenance and repair facility for diesel locomotives of the Indian Railways, located at Abu Road railway station (ABR) in Abu Road city in the Indian state of Rajasthan. It is one of the two diesel loco sheds of the North Western Railway, the others being at Bhagat ki Kothi.
Diesel Loco Shed, Tondiarpet is a motive power depot performing locomotive maintenance and repair facility for diesel locomotives of the Indian Railways. It is located near Tondiarpet railway station (TNP) of the Southern Railway zone in the city of Chennai, Tamil Nadu and is one of the four diesel loco sheds of the Southern Railway, the others being at Ernakulam (ERS) at Kochi, Erode (ED) and Golden Rock (GOC) at Trichy.
The Indian locomotive class WDM-6 is a class of Diesel locomotive that was developed in 1981 by Banaras Locomotive Works (BLW), Varanasi for Indian Railways. The model name stands for broad gauge (W), Diesel (D), Mixed traffic (M) engine, 6th generation (6). They entered service in 1981. A total of 2 WDM-6 was built at between 1981 and 1982. They were decommissioned at Burdwan (BWN) in 2011.
The Diesel & Electric Loco Shed, Krishnarajapuram is a motive power depot performing locomotive maintenance and repair facility for diesel locomotives and electric locomotives of the Indian Railways, located at Krishnarajapuram (KJM) of the South Western Railway zone in the city of Bangalore, Karnataka. It is one of two diesel loco sheds and only electric loco sheds of the South Western Railway, the other being at Hubli.
{{cite web}}
: CS1 maint: multiple names: authors list (link)