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Indian locomotive class WAG-9

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 3729 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.

WAG-9
KJM based WAG-9HC at KSR Bengaluru
Type and origin
Power typeElectric
BuilderChittaranjan Locomotive Works,
Bharat Heavy Electricals Limited, Banaras Locomotive Works,
Patiala Locomotive Works
Build date1995 - present
Total produced3729 as of January 2023
Specifications
Configuration:
 • UICCo′Co′
Gauge5 ft 6 in (1,676 mm)
BogiesAdtranz Fabricated Flexicoil IV
Wheel diameterNew:1,092 mm (3 ft 7 in),
Half worn:1,054 mm (3 ft 5+12 in)
Full worn:1,016 mm (3 ft 4 in)
Wheelbase15.7 m (51 ft 6 in)
Length20.562 m (67 ft 5+12 in)
Width3.152 m (10 ft 4+18 in)
Height4.525 m (14 ft 10+18 in)
Axle loadWAG-9 : 20.5 tonnes (20.2 long tons; 22.6 short tons) WAG-9H/Hi/9i : 22.0 tonnes (21.7 long tons; 24.3 short tons)
Loco weightWAG-9 : 123 tonnes (121 long tons; 136 short tons) WAG-9H/9Hi/9i : 132 tonnes (130 long tons; 146 short tons)
Electric system/s25 kV 50 Hz AC Overhead
Current pickup(s)dual pantographs
Traction motorsWAG-9/9H/9i : Adtranz 6FRA6068
MU working2
Loco brakeAir and Regenerative
Train brakesAir
Safety systemsSlip/slide control, Main overload relay, Over voltage relay, No volt protection, Vigilance Control Device, Fire Detection Equipment, Fire Extinguishers and Earth fault relay
Performance figures
Maximum speed100 km/h (62 mph)
Power outputWAG-9 Original : 6,122 hp (4,565 kW) WAG-9HH : 9,000 hp (6,711 kW)
Tractive effortStarting : 475 kN (107,000 lbf)
(WAG-9), 510 kN (110,000 lbf)
(WAG-9H/i/Hi) Continuous : 325 kN (73,000 lbf) at 50 km/h
Career
OperatorsIndian Railways
NumbersStarting from 31000-31999, 32000-32999, 33000+ & 90001+ CLW

34001+ BHEL 41000-41500 & 43000+ BLW

41501+ PLW
LocaleAll Over India
Dispositionactive

The WAG-9 is one of the most successful locomotives of Indian Railways serving freight trains for over 27 years. A passenger variant of the WAG-9 was developed namely the WAP-7 locomotive by modifying the gear ratio to pull lighter loads at higher speeds. Nowadays, It is a common locomotive used in freight trains.

Introduction

The WAG-9 locomotive is referred to as the "Heavy Haul" freight locomotive of the Indian Railways (IR). It was conceived in response to the extreme growth in the rail freight transportation sector, which is considered to be of great importance to the growth of the economy of India. The need for more electrification and electric locomotives in India had increased. Around 60-65% of the freight haulage of the IR takes place on the electrified section of the Golden Quadrilateral (Indian Railways) and diagonals (which account for 25% of the route). These are very busy routes, so clearance is a necessity. Electrical powers give it a great sectional clearance ability. Thus, these locomotives are important for the Indian Railways.

These locomotives have entered the Western Railway zone of Mumbai. The first 22 units were imported from ABB. Of these, the first six were fully assembled and rest were in kit form. CLW started producing of WAG-9 traction motors on 1 November 1999. The units built by ABB have pantographs with two end horns while the CLW built units have pantographs with single end horns which are common in India. This class had a capacity to MU several units, but IR restricts them to two, because of dynamic loading restriction on most bridges. Regenerative brakes provide about 260 kN of braking effort.

The WAG-9H also has different application software than the WAG-9. The first WAG-9H was commissioned on 30 June 2000. The #30130 prototype was housed at Gomoh (GMO). This was then converted back to standard WAG-9 in 2002. This unit has a livery of twin white stripes on green, instead of yellow stripe on green, seen on the other WAG-9(x)s.

The WAG-9i was introduced in 2010, and was #31215. It was homed at the GMO shed. With IGBT, even if one traction motor failed, other traction motors can function with a total output of 5500 hp.

Newer WAG-9 units have "CLW Glorious 60 years" marked on their sides. Some WAG-9(x)s are fitted with a solid cowcatcher while others are fitted with grilled cowcatchers. Some have American style flasher lamps while others have Indian style flasher lamps. http://elocos.railnet.gov.in/Study_Material/TSD_3Ph.pdf.

Newer versions of the WAG-9 feature full Insulated-gate bipolar transistor (IGBT) traction control; the debut model was the WAG-9 31248. The class as a whole is denoted by the WAG-9i prefix in its model number, although there is a technical variant of this class named WAG-9H, with the "H" meaning "Heavy".

The WAG-9H/9Hi locomotives are the second heaviest in regular service in India (after the WAG-12), the only freight-dedicated three-phase AC locomotives in the country, and the only electric locomotives in India fitted with IGBT. They are also the freight locomotives with the highest operational speed in India.

It is similar to the WAP-7 class locomotive but features a different gear ratio, which makes it suitable for heavy freight operations. In November 1998, the Chittaranjan Locomotive Works (CLW) started producing these with indigenous components. The first of which, named Navyug (New Era), was produced on 14 November 1998. Like the WAP-5 units, the WAG-9 has GTO thyristor converters and three-phase asynchronous motors.

Variants

The following variants are built from the WAG-9:

  • WAG-9: Original version
  • WAG-9H: Heavy version with additional ballast, total weight: 132 t
  • WAG-9i: Version with IGBT Technology
  • WAG-9Hi: Version with additional ballast and IGBT Technology
  • WAG-9HC: Heavy version with Conventional Brake Rigging
  • WAG-9HH: Heavy Version with High Horsepower 9000 hp variant

Operations

WAG-9 has quickly become one of the important locos in the Indian railways. With its higher power, this locomotive has replaced WAG-7 which was the main electric loco before WAG-9's arrival. Applications where twin WAG-7s were required are now handled by a single WAG-9. This includes both leading a long consist and for banking operations. The regenerative braking capabilities of WAG-9 has also helped reduce the electricity consumption. The original WAG-9 had some wheel slippage incidents while hauling heavy load. This was rectified through the introduction of WAG-9H and subsequently using WAG-9i. This has significantly reduced the issue that were associated with the original version.

 
A Krishnarajapuram-based WAG-9HC at Bangalore City Railway Station.


Chittaranjan Locomotive Works (CLW) turned out its first 9,000 hp WAG-9 freight locomotive on 31 March 2019, the last day of the financial year. This 9,000 hp version of the WAG-9H has been classified by IR as WAG-9 HH. The first H stands for higher axle load and the second H stands for the higher power rating. The class has been allocated a block of serial numbers starting with 90001, the number of the first unit. The decision to upgrade the power output of the WAG-9 was taken to partly meet the demands of the upcoming electrified Western Dedicated Freight Corridor (WDFC). The upgraded locomotive class will also augment hauling capacity on the existing network of the Indian Railways.[1]

Locomotive sheds

Zone Name Shed Code Quantity Introduction
WAG-9 WAG-9H WAG-9HH
Central Railway Bhusawal BSL 1 21 2013
Ajni AQ 23 163 2000
Pune PA 11 2022
Eastern Railway Bardhaman BWN (D) 18 2020
Asansol ASN 46 2020
East Central Railway Pt. Deen Dayal Upadhyaya DDU 56 2020
Gomoh GMO 69 81 1997
Barauni BJU 98 2019
Patratu PTRU (D) 6 108 2020
East Coast Railway Visakhapatnam VSKP 213 2014
Visakhapatnam (D) VSKP (D) 191 2021
Northern Railway Ludhiana LDH 218 2015
Saharanpur SRE 58 2020
Tughlakabad TKD (D) 57 2022
North Central Railway Kanpur CNB 213 2016
North Eastern Railway Gonda GD (D) 11 2021
Saiyedpur Bhitri SYH 15 2022
Northeast Frontier Railway Malda Town MLDT (D) 19 2021
Siliguri SGUJ (D) 6 2022
Southern Railway Arakkonam AJJ 32 2020
South Central Railway Vijayawada BZA 56 2021
Lallaguda LGD 73 69 2007
Kazipet KZJ 120 2013
Gooty GY (D) 50 2019
South Eastern Railway Tatanagar TATA 2 203 2010
Bondamunda BNDM 194 2016
Bokaro Steel City BKSC 161 2019
Rourkela ROU 177 2019
South East Central Railway Bhilai BIA 222 2009
Bilaspur BSP 105 2020
South Western Railway Krishnarajapuram KJM (D) 45 2020
Hubli UBL (D) 12 2022
Western Railway Valsad BL 146 2020
West Central Railway Tughlakabad TKD 30 127 8 2008
New Katni Jn. NKJ 9 2017
Itarsi ET 99 2020
Total 204 3517 8
Total Locomotives Active as of January 2023[2] 3729

Performance

Two WAG-9 class units can haul a load of 4,500 tonnes (4,400 long tons; 5,000 short tons) on grades of 1 in 60 (1.67%). The WAG-9H was expected to haul 58 BOXN wagons, i.e.,4,700 tonnes (4,600 long tons; 5,200 short tons), without multiple units on grades of 1 in 150 (0.67%). The locomotive can run even in 100% humidity, or in deserts, where there is high saturation of conductive particles. For shunting up to 15 km/h (9.3 mph), it can haul 7,500 tonnes (7,400 long tons; 8,300 short tons) on grades of 1 in 1000 (0.1%) or less. The atmosphere may be humid and salty. Regenerative braking will provide braking force of no less than 260 kN (58,000 lbf) at 10–62 km/h (6.2–38.5 mph) and closer to 260 kN (58,000 lbf) at higher speeds. Below is the capacity of the WAG-9 while hauling BOX wagons (in tonnes}):[3]

Grade\km/h Start 20 30 40 50 60 70 80 90 100
Level 6000+ 6000+ 6000+ 6000+ 6000+ 6000+ 6000+ 6000+ 6000+ 6000+
1 in 500 6000+ 6000+ 6000+ 6000+ 6000+ 6000+ 6000+ 4985 4150 3500
1 in 200 5060 5060 5060 5060 5060 4045 3325 2780 2365 2040
1 in 150 4250 4250 4165 4080 3985 3200 2640 2220 1895 1640
1 in 100 3205 2910 2870 2825 2775 2240 1855 1565 1345 1165
1 in 50 1820 1455 1445 1435 1420 1440 945 795 680 590

See also

References

  1. ^ "New 9,000 hp WAG-9 HH Locomotive Rolls Out of CLW". RailPost.in - Indian Railways News & Analysis. 2 April 2019. Retrieved 5 April 2019.
  2. ^ "e-Locos".
  3. ^ "Trainweb".

External links

  • Specifications
  • India railway fan club
  • IR WAG-9 @ Trainspo
  • IT Locomotive Numbers

indian, locomotive, class, class, electric, locomotives, that, developed, 1995, group, indian, railways, model, name, stands, broad, gauge, current, goods, traffic, generation, locomotive, they, entered, service, 1996, total, 3729, have, been, built, chittaran. 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 3729 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 WAG 9KJM based WAG 9HC at KSR BengaluruType and originPower typeElectricBuilderChittaranjan Locomotive Works Bharat Heavy Electricals Limited Banaras Locomotive Works Patiala Locomotive WorksBuild date1995 presentTotal produced3729 as of January 2023SpecificationsConfiguration UICCo Co Gauge5 ft 6 in 1 676 mm BogiesAdtranz Fabricated Flexicoil IVWheel diameterNew 1 092 mm 3 ft 7 in Half worn 1 054 mm 3 ft 5 1 2 in Full worn 1 016 mm 3 ft 4 in Wheelbase15 7 m 51 ft 6 in Length20 562 m 67 ft 5 1 2 in Width3 152 m 10 ft 4 1 8 in Height4 525 m 14 ft 10 1 8 in Axle loadWAG 9 20 5 tonnes 20 2 long tons 22 6 short tons WAG 9H Hi 9i 22 0 tonnes 21 7 long tons 24 3 short tons Loco weightWAG 9 123 tonnes 121 long tons 136 short tons WAG 9H 9Hi 9i 132 tonnes 130 long tons 146 short tons Electric system s25 kV 50 Hz AC OverheadCurrent pickup s dual pantographsTraction motorsWAG 9 9H 9i Adtranz 6FRA6068MU working2Loco brakeAir and RegenerativeTrain brakesAirSafety systemsSlip slide control Main overload relay Over voltage relay No volt protection Vigilance Control Device Fire Detection Equipment Fire Extinguishers and Earth fault relayPerformance figuresMaximum speed100 km h 62 mph Power outputWAG 9 Original 6 122 hp 4 565 kW WAG 9HH 9 000 hp 6 711 kW Tractive effortStarting 475 kN 107 000 lbf WAG 9 510 kN 110 000 lbf WAG 9H i Hi Continuous 325 kN 73 000 lbf at 50 km hCareerOperatorsIndian RailwaysNumbersStarting from 31000 31999 32000 32999 33000 amp 90001 CLW 34001 BHEL 41000 41500 amp 43000 BLW 41501 PLWLocaleAll Over IndiaDispositionactiveThe WAG 9 is one of the most successful locomotives of Indian Railways serving freight trains for over 27 years A passenger variant of the WAG 9 was developed namely the WAP 7 locomotive by modifying the gear ratio to pull lighter loads at higher speeds Nowadays It is a common locomotive used in freight trains Contents 1 Introduction 2 Variants 3 Operations 4 Locomotive sheds 5 Performance 6 See also 7 References 8 External linksIntroduction EditThe WAG 9 locomotive is referred to as the Heavy Haul freight locomotive of the Indian Railways IR It was conceived in response to the extreme growth in the rail freight transportation sector which is considered to be of great importance to the growth of the economy of India The need for more electrification and electric locomotives in India had increased Around 60 65 of the freight haulage of the IR takes place on the electrified section of the Golden Quadrilateral Indian Railways and diagonals which account for 25 of the route These are very busy routes so clearance is a necessity Electrical powers give it a great sectional clearance ability Thus these locomotives are important for the Indian Railways These locomotives have entered the Western Railway zone of Mumbai The first 22 units were imported from ABB Of these the first six were fully assembled and rest were in kit form CLW started producing of WAG 9 traction motors on 1 November 1999 The units built by ABB have pantographs with two end horns while the CLW built units have pantographs with single end horns which are common in India This class had a capacity to MU several units but IR restricts them to two because of dynamic loading restriction on most bridges Regenerative brakes provide about 260 kN of braking effort The WAG 9H also has different application software than the WAG 9 The first WAG 9H was commissioned on 30 June 2000 The 30130 prototype was housed at Gomoh GMO This was then converted back to standard WAG 9 in 2002 This unit has a livery of twin white stripes on green instead of yellow stripe on green seen on the other WAG 9 x s The WAG 9i was introduced in 2010 and was 31215 It was homed at the GMO shed With IGBT even if one traction motor failed other traction motors can function with a total output of 5500 hp Newer WAG 9 units have CLW Glorious 60 years marked on their sides Some WAG 9 x s are fitted with a solid cowcatcher while others are fitted with grilled cowcatchers Some have American style flasher lamps while others have Indian style flasher lamps http elocos railnet gov in Study Material TSD 3Ph pdf Newer versions of the WAG 9 feature full Insulated gate bipolar transistor IGBT traction control the debut model was the WAG 9 31248 The class as a whole is denoted by the WAG 9i prefix in its model number although there is a technical variant of this class named WAG 9H with the H meaning Heavy The WAG 9H 9Hi locomotives are the second heaviest in regular service in India after the WAG 12 the only freight dedicated three phase AC locomotives in the country and the only electric locomotives in India fitted with IGBT They are also the freight locomotives with the highest operational speed in India It is similar to the WAP 7 class locomotive but features a different gear ratio which makes it suitable for heavy freight operations In November 1998 the Chittaranjan Locomotive Works CLW started producing these with indigenous components The first of which named Navyug New Era was produced on 14 November 1998 Like the WAP 5 units the WAG 9 has GTO thyristor converters and three phase asynchronous motors Variants EditThe following variants are built from the WAG 9 WAG 9 Original version WAG 9H Heavy version with additional ballast total weight 132 t WAG 9i Version with IGBT Technology WAG 9Hi Version with additional ballast and IGBT Technology WAG 9HC Heavy version with Conventional Brake Rigging WAG 9HH Heavy Version with High Horsepower 9000 hp variantOperations EditWAG 9 has quickly become one of the important locos in the Indian railways With its higher power this locomotive has replaced WAG 7 which was the main electric loco before WAG 9 s arrival Applications where twin WAG 7s were required are now handled by a single WAG 9 This includes both leading a long consist and for banking operations The regenerative braking capabilities of WAG 9 has also helped reduce the electricity consumption The original WAG 9 had some wheel slippage incidents while hauling heavy load This was rectified through the introduction of WAG 9H and subsequently using WAG 9i This has significantly reduced the issue that were associated with the original version A Krishnarajapuram based WAG 9HC at Bangalore City Railway Station Chittaranjan Locomotive Works CLW turned out its first 9 000 hp WAG 9 freight locomotive on 31 March 2019 the last day of the financial year This 9 000 hp version of the WAG 9H has been classified by IR as WAG 9 HH The first H stands for higher axle load and the second H stands for the higher power rating The class has been allocated a block of serial numbers starting with 90001 the number of the first unit The decision to upgrade the power output of the WAG 9 was taken to partly meet the demands of the upcoming electrified Western Dedicated Freight Corridor WDFC The upgraded locomotive class will also augment hauling capacity on the existing network of the Indian Railways 1 Locomotive sheds EditZone Name Shed Code Quantity IntroductionWAG 9 WAG 9H WAG 9HHCentral Railway Bhusawal BSL 1 21 2013Ajni AQ 23 163 2000Pune PA 11 2022Eastern Railway Bardhaman BWN D 18 2020Asansol ASN 46 2020East Central Railway Pt Deen Dayal Upadhyaya DDU 56 2020Gomoh GMO 69 81 1997Barauni BJU 98 2019Patratu PTRU D 6 108 2020East Coast Railway Visakhapatnam VSKP 213 2014Visakhapatnam D VSKP D 191 2021Northern Railway Ludhiana LDH 218 2015Saharanpur SRE 58 2020Tughlakabad TKD D 57 2022North Central Railway Kanpur CNB 213 2016North Eastern Railway Gonda GD D 11 2021Saiyedpur Bhitri SYH 15 2022Northeast Frontier Railway Malda Town MLDT D 19 2021Siliguri SGUJ D 6 2022Southern Railway Arakkonam AJJ 32 2020South Central Railway Vijayawada BZA 56 2021Lallaguda LGD 73 69 2007Kazipet KZJ 120 2013Gooty GY D 50 2019South Eastern Railway Tatanagar TATA 2 203 2010Bondamunda BNDM 194 2016Bokaro Steel City BKSC 161 2019Rourkela ROU 177 2019South East Central Railway Bhilai BIA 222 2009Bilaspur BSP 105 2020South Western Railway Krishnarajapuram KJM D 45 2020Hubli UBL D 12 2022Western Railway Valsad BL 146 2020West Central Railway Tughlakabad TKD 30 127 8 2008New Katni Jn NKJ 9 2017Itarsi ET 99 2020Total 204 3517 8Total Locomotives Active as of January 2023 2 3729Performance EditTwo WAG 9 class units can haul a load of 4 500 tonnes 4 400 long tons 5 000 short tons on grades of 1 in 60 1 67 The WAG 9H was expected to haul 58 BOXN wagons i e 4 700 tonnes 4 600 long tons 5 200 short tons without multiple units on grades of 1 in 150 0 67 The locomotive can run even in 100 humidity or in deserts where there is high saturation of conductive particles For shunting up to 15 km h 9 3 mph it can haul 7 500 tonnes 7 400 long tons 8 300 short tons on grades of 1 in 1000 0 1 or less The atmosphere may be humid and salty Regenerative braking will provide braking force of no less than 260 kN 58 000 lbf at 10 62 km h 6 2 38 5 mph and closer to 260 kN 58 000 lbf at higher speeds Below is the capacity of the WAG 9 while hauling BOX wagons in tonnes 3 Grade km h Start 20 30 40 50 60 70 80 90 100Level 6000 6000 6000 6000 6000 6000 6000 6000 6000 6000 1 in 500 6000 6000 6000 6000 6000 6000 6000 4985 4150 35001 in 200 5060 5060 5060 5060 5060 4045 3325 2780 2365 20401 in 150 4250 4250 4165 4080 3985 3200 2640 2220 1895 16401 in 100 3205 2910 2870 2825 2775 2240 1855 1565 1345 11651 in 50 1820 1455 1445 1435 1420 1440 945 795 680 590See also EditIndian Railways Locomotives of India Rail transport in IndiaReferences Edit New 9 000 hp WAG 9 HH Locomotive Rolls Out of CLW RailPost in Indian Railways News amp Analysis 2 April 2019 Retrieved 5 April 2019 e Locos Trainweb External links Edit Wikimedia Commons has media related to Indian locomotive class WAG9 Specifications India railway fan club IR WAG 9 Trainspo IT Locomotive Numbers Retrieved from https en wikipedia org w index php title Indian locomotive class WAG 9 amp oldid 1131535847, wikipedia, wiki, book, books, library,

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