Indian locomotive class WAG-5


The Indian locomotive class WAG-5 is a class of 25 kV AC electric locomotives that was developed in the 1968 by Chittaranjan Locomotive Works for Indian Railways. The model name stands for broad gauge, AC Current, Goods traffic engine, 5th generation. They entered service in 1980. A total of 1196 WAG-5 were built at CLW and BHEL between 1970 and 1998, which made them the most numerous class of mainline electric locomotive till its successor the WAG-7.
The WAG-5 is one of the most successful locomotives of Indian Railways currently serving both freight and passenger trains for over 50 years. This class provided the basic design for a number of other locomotives like, WAG-7 and the WCM-6. However, with the advent of new 3-phase locomotives like WAG-9 and WAG-12, the WAG-5 locomotives were relegated to hauling smaller passenger trains and now the aging fleet the WAG-5 locomotives are slowly being withdrawn from mainline duties and scrapped.

History

WAG5A is the one with Alstom traction motors. WAG5B is a converted WAM4. WAG5H is with Hitachi traction motors. WAG5P is a passenger dedicated class. WAG5D are fitted with dual brakes and WAG5E are fitted with air brakes. WAG5RH and WAG-5HR are fitted with Rheostatic or Friction braking. Another variant is WAG-5HG.The units with additional '6P' markings have all parallel grouped traction motors. WAG-5HB is built by BHEL. Some units are fitted with Static Converter, Microprocessor, Dynamic brake resistors and SI unit. Due to the advent of WAG-7 and WAG-9, these locos except WAG-5HA/HB are even used for passenger trains although it is a freight-dedicated locomotive. WAG-5HB is homed at Jhansi shed near BHEL's installations for maintenance purposes. WAG-5 has a shell of WAM-4. Units numbered till 23293 have side Louvre and round glass windows like WAM-4 and units after 23293 have WAG-7 style of Louvre for better ventilation. Recently, WAG-5 have been fitted with data loggers. Unit numbered 23026 was selected by RDSO for adoption of thyristor controlled electricals in 1995. This was done due to the loss of suppliers of tap changer control. Project began in 1992. The new prototype system built in collaboration with Bhabha Atomic Research Centre was fitted in the locomotive between 1997–98. However, due to several problems like interference with signalling equipment, the project was ceased in 1999. The engine was rebuilt to original WAG-5 and designated as WAG-5P.

Technical Specification

Locomotive sheds

Hauling capacity

WAG-5HB has the following capacity for BOXN :
GradientStart20 km/h30 km/h40 km/h50 km/h60 km/h70 km/h80 km/h
Level6000+6000+6000+6000+6000+6000+24902671
1 in 5006000+5933564553084947414124901645
1 in 20036003182309329852861246415111018
1 in 1502800251924612390230820021231831
1 in 100194017591730169216481440884595
1 in 501150890880869855751448290

WAG-5HB has the following capacity for BOX wagons :
GradientStart20 km/h30 km/h40 km/h50 km/h60 km/h70 km/h80 km/h
Level6000+6000+6000+6000+6000+6000+6000+4478
1 in 50049504950495049504950495032212209
1 in 20034293365328631952806246417611219
1 in 1502924268226322582252322241395964
1 in 100224618391814178917581555969664
1 in 501300911903896886783471309

WAG-5HB has the following capacity for BCNA wagons :
GradientStart20 km/h30 km/h40 km/h50 km/h60 km/h70 km/h80 km/h
Level6000+6000+6000+6000+6000+6000+6000+4713
1 in 50057755770577557755775512133822266
1 in 20038103602351234113310271417621233
1 in 1503198278227262663259921401390972
1 in 100240718901863183217981485994700
1 in 501354920912902893742483310

WAG-5HB has the following capacity for ICF coaches :
GradientStart20 km/h30 km/h40 km/h50 km/h60 km/h70 km/h80 km/h
Level6000+6000+6000+6000+6000+6000+6000+4713
1 in 50057755770577557755775512133822266
1 in 20038103602351234113310271417621233
1 in 1503198278227262663259921401390972
1 in 100240718901863183217981485994700
1 in 501354920912902893742483310

WAG-5 with a gear ratio of 15:62 has the following capacity for BOX wagons :
GradientStart20 km/h30 km/h40 km/h50 km/h60 km/h70 km/h80 km/h90 km/h100 km/h105 km/h
Level6000+6000+6000+6000+6000+6000+6000+4870323523401825
1 in 5004650465046504650465044203370240016551235975
1 in 20032353235317031003010239018501330920690540
1 in 15027402525248024302375189014601050725545420
1 in 1002105173017051680165013101020730495365275
1 in 501215855845835830650500340220150100

WAG-5 with a gear ratio of 17:77 has the following capacity for BOX wagons :
GradientStart20 km/h30 km/h40 km/h50 km/h60 km/h70 km/h80 km/h
Level6000+6000+6000+6000+6000+6000+42802820
1 in 50049504950495049504900298020001370
1 in 2003430343034303400264015901070730
1 in 150292027802730268020801250840570
1 in 10022401910188018501440860570380
1 in 501300950940930720410250150

WAG-5 with a gear ratio of 17:77 has the following capacity for BOXN wagons :
GradientStart20 km/h30 km/h40 km/h50 km/h60 km/h70 km/h80 km/h
Level6000+6000+6000+6000+6000+6000+46002970
1 in 50057705770577057705250312020701400
1 in 2003810370036103510271016301100750
1 in 150320028602800274021301270850570
1 in 10024001950192018901460870580380
1 in 501350960950940720410260150

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