The Indian locomotive class WAG-4 is a class of 25 kVACelectric 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.[1]
The WAG-4 served both passenger and freight trains for over 40 years. As of January 2020, All locomotives have been removed from service all but one were scrapped.
The first fifty-six locomotive's equipment were procured from European Group. They had Auxiliary machines and some control equipments have been procured from indigenous sources. All these locomotives were built by CLW. The typical feature of these locomotives is Monomotor Bogie. This construction results in substantial saving in weight in traction equipment and gives better adhesion. These locomotives utilise silicon rectifiers for conversion of ac power into dc. The traction motors are force ventilated and are fully suspended type. These motors are permanently grouped in parallel and speed control is obtained through HT tap changer and TM field weakening.
These locomotives can be used for a multiple unit operation to a maximum of four locomotives with compressed air brake for the loco and vacuum brake for the train are provided. In addition, these locomotives are also provided with rheostatic braking. Few locomotives have been converted to dual brake system later on by Railways.
Specificationedit
Build dates: 1966-71
Wheel arrangement: B-B ( monomotor bogies like WAG 1 )
indian, locomotive, class, class, electric, locomotives, that, manufactured, late, 1960s, indian, railways, model, name, stands, broad, gauge, current, goods, traffic, engine, total, locomotives, were, built, european, group, group, european, group, cycles, gr. 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 1 WAG 4WAG 4 20937 at Mathura Junction railway stationType and originPower typeElectricBuilderCLWBuild date1967 1969Total produced186SpecificationsConfiguration AARB B UICB BGauge5 ft 6 in 1 676 mm BogiesMonomotor B B bogiesWheel diameterNew 1 140 mm 3 ft 9 in Half worn 1 120 mm 3 ft 8 in Full worn 1 064 mm 3 ft 6 in Length14 600 m 47 ft 10 13 16 in Width3 109 m 10 ft 2 13 32 in Height4 165 m 13 ft 7 31 32 in Axle load18 640 kg 41 090 lb Loco weight74 000 kg 163 000 lb Electric system s25 kV 50 Hz AC AC OverheadCurrent pickup s pantographTraction motorsSiemens ACEC Alstom MG 710A 740hp 1250V 480A 1000 rpm Fully suspended force ventilated Loco brakeAirTrain brakesvacuum train brakes Performance figuresMaximum speed112 km h 70 mph Power outputMAX 2930HP Continuous 2 930 hp 2 185 kW Tractive effortStarting 25 000 kgf 250 kN 55 000 lbf CareerOperatorsIndian RailwaysNumbers20700 20709 Niv SFAC 20710 20791 CLW 20849 20868 Niv SFAC LocaleAll over IndiaDispositionRetired The WAG 4 served both passenger and freight trains for over 40 years As of January 2020 All locomotives have been removed from service all but one were scrapped Contents 1 History 2 Specification 3 Locomotive shed 4 See also 5 References 6 External linksHistory editThe first fifty six locomotive s equipment were procured from European Group They had Auxiliary machines and some control equipments have been procured from indigenous sources All these locomotives were built by CLW The typical feature of these locomotives is Monomotor Bogie This construction results in substantial saving in weight in traction equipment and gives better adhesion These locomotives utilise silicon rectifiers for conversion of ac power into dc The traction motors are force ventilated and are fully suspended type These motors are permanently grouped in parallel and speed control is obtained through HT tap changer and TM field weakening These locomotives can be used for a multiple unit operation to a maximum of four locomotives with compressed air brake for the loco and vacuum brake for the train are provided In addition these locomotives are also provided with rheostatic braking Few locomotives have been converted to dual brake system later on by Railways Specification editBuild dates 1966 71 Wheel arrangement B B monomotor bogies like WAG 1 Traction Motors ACEC make MG 1580 A1 1160 kW 1270 V 1040 A 690 rpm weight 5850 kg Fully suspended bogie mounted Gear Ratio 3 95 1 Transformer Oerlikon BOT 3460 32 taps Rectifiers Two GL 82220 silicon rectifiers 1000 A 1270 kW 1270 V Weight 650 kg each Axle Load 21 9 t Hauling capacity 2000 t Manufacturer Chittaranjan Locomotive Works CLW Variants WAG 4D D stands for Dual braking ie it can haul both vacuum and air brake stock wagons Locomotive shed editAll the locomotives of this class has been withdrawn from service See also editRail transport in India History Indian Railways Locomotives of India Rail transport in India nbsp Wikimedia Commons has media related to Indian locomotive class WAG4 References edit https www irfca org faq faq specs html WAG 4 IRFCA Indian Railways FAQ Diesel and Electric Locomotive SpecificationsExternal links edit IRFCA Indian Railways FAQ Locomotives Specific classes AC Electric IRFCA Indian Railways FAQ Diesel and Electric Locomotive Specifications 11081 Colour Photographs Indian Railways Retrieved from https en wikipedia org w index php title Indian locomotive class WAG 4 amp oldid 1211202381, wikipedia, wiki, book, books, library,
