WAG is a code given by Indian Railways to a series of electric locomotives, run in India. W is for broad gauge, A is for AC traction and G is for goods duty. They are the most powerful engines in the country yet. There are 9 WAG models and each model has further variations.
Manufacturer: Chittaranjan Locomotive Works ( CLW )
Variants
WAG 1 - 1S
Specification
Build dates: 1963-66
Wheel arrangement: B-B ( monomotor bogies )
Traction motors: AEC/Alstom/Siemens MG1420. Two motors (monomotor bogies), force-ventilated, fully suspended.
Gear ratio: 3.95:1
Transformer: MFO, type BOT 3150. 22.5 kV / 3000 kVA. 32 taps.
Rectifiers: Secheron A268 Excitrons (four). 510 A / 1250 V.
Axle load: 21.3 t
Max. Haulage: 1820 t
Pantographs: Two Faiveley AM-12
Manufacturer:The Japanese Group ( consortium of Hitachi,Mitsubishi and Toshiba )
Variants
WAG 2
Specification
Build dates: 1964-65
Wheel arrangement: B-B ( monomotor bogies like WAG 1 )
Traction Motors: Hitachi EFCO HKK (1270 kW, 1250 V, 1080 A, 695 rpm, weight 5300 kg).
Transformer: Hitachi AFI AMOC. 32 taps.
Rectifiers: AEV-48 silicon rectifiers, 2040 A / 2550 kW.
Pantographs: Two Faiveley AM-12
Manufacturer:50 C/s Group ( The 50 Cycles Group was a consortium of electric locomotive and allied equipment manufacturers of Europe,namely Alsthom ( Alstom ),MTE,Schneider-Westinghouse, ( Jeumont ),ACEC,Brown Boveri,Oerlikon,Siemens,AEG,Krupp )
Variants
WAG 3
Specification
Build date: 1965
Builder: Henschel
Wheel arrangement: B-B ( monomotor bogies like WAG 1 )
Manufacturer:Chittaranjan Locomotive Works ( CLW )
Variants
WAG 4
Specification
Build 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: All of the series except WAG 5HB: CLW, WAG 5HB: Bharat Heavy Electricals Ltd ( BHEL )
Variants
WAG 5 - 5A, 5H, 5HA, 5HB, 5HG, 5HR, 5RH, 5D, 5P, 5HE, 5E, 5B
Specification
Build dates:
WAG 5, 1988–98
WAG 5A, 1983–88
WAG 5B, 1978–83
Wheel arrangement: Co-Co
Traction Motors: Alstom TAO 659 (575 kW, 750 V, 1070 rpm) or TAO 656; or Hitachi HS 15250A (See description under WAP-4.) Axle-hung, nose-suspended. Six motors.
Gear Ratio: 62:16 or 62:15 with Alstom motors, some 64:18 (Hitachi motors), many now 58:21 for mixed use.
Transformer: BHEL, type HETT-3900. 3900 kVA, 22.5 kV, 182 A. 32 taps.
Rectifiers: Silicon rectifiers (two) using 64 S-18FN-350 diodes each from Hind Rectifier. 2700 A / 1050 V per cubicle.
Bogies: Co-Co cast bogies (Alco asymmetric trimount—shared with WDM-2, WAM-4).
Axle load: 20 t
Max. Haulage: 2375 t
Pantographs: Two Faiveley AM-12
Current Ratings: 1100 A / 10 min, 750 A continuous
Manufacturer: ASEA ( WAG 6A ),Hitachi ( WAG 6B,WAG 6C )
Variants
WAG 6 - 6A, 6B, 6C
Specification
Build dates:
WAG 6A, 1988–89
WAG 6B, 1988
WAG 6C, 1988
Wheel arrangement:
WAG 6A, Bo-Bo-Bo
WAG 6B, Bo-Bo-Bo
WAG 6C, Co-Co
Traction Motors: ASEA make (WAG-6A), L3 M 450-2. Six motors, fully suspended, force-ventilated, separately excited, 3100 kg ; (WAG-6B) Hitachi HS 15556-OIR, bogie mounted, force-ventilated, compound-wound, 3200 kg ; (WAG-6C) Hitachi HS 15256-UIR, axle-hung nose-suspended, force-ventilated, compound-wound, 3650 kg.
Transformer: (WAG-6A) ASEA: TMZ 21, 7533 kVA; (WAG-6B/C) Hitachi AFIC-MS, 6325 kVA.
Thyristor controller: (WAG-6A) 24 YST 45-26P24C thyristors each with 24 YSD35-OIP26 diodes, 2 x 511 V, 2 x 4500 A; (WAG-6B/C) 32 CGOIDA thyristors each with 24 DSP2500A diodes. 2x720 A, 850 V.
Pantographs: (WAG-6A) Two Stemman BS 95; (WAG-6B/C) Two Faiveley LV2600
Variants
WAG 7 - 7H
Specification
Build dates: 1992-2015
Wheel arrangement: Co-Co
Traction Motors: Hitachi HS15250-G (a variant of the standard HS15250 with higher current rating (thicker wire gauge, better insulation); see description under WAP-4.) Motors built by CLW and BHEL.
Gear Ratio: 65:18 (65:16?)
Transformer: CCL India, type CGTT-5400, 5400 kVA, 32 taps.
Rectifiers: Two silicon rectifiers, cell type S18FN350 (from Hind Rectifier), 64 per bridge, 2700 A / 1050 V per cubicle.
Axle load: 20.5 t
Bogies: Alco High-Adhesion bogies, fabricated bogie frame assembly, with unidirectional mounting of traction motors, primary and secondary suspension.
Hauling Capacity: 3010 t
Pantographs: Two Stone India (Calcutta) type AM-12.
Current Ratings: 1350 A / 2 min, 1200 A / 10 min, 960 A / hr, 900 A continuous
Last WAG-7 was manufactured on 24th of September, 2015. Its loco number is 28770 & its serial number is HH-1770
Variants
WAG 8
Specification
Build date: 1996
Wheel arrangement: Co-Co
This is an experimental class of which only one or two were built by BHEL in 1996. They are similar in appearance to the WCAM-2 locos. Power output is similar to the WAG-7 at 5000 hp. There is thyristor chopper control of the DC motors. The class probably shared some components with the WCAM-3 which BHEL was building at the time. They are thought to have Flexicoil Mark IV hi-adhesion bogies.
Variants
WAG 9 - 9H
Specification
Build dates: 1996+
Wheel arrangement: Co-Co
Manufacturers: ABB, CLW
Traction Motors: ABB 6FRA 6068 (850 kW, 2180 V, 1283/2484 rpm, 270 / 310 A. Weight 2100 kg) Axle-hung, nose-suspended.
Gear Ratio: 77:15 / 64:18
Transformer: ABB LOT 6500, 4 x 1450 kVA.
Power Drive: Power converter from ABB, type UW-2423-2810 with SG 3000G X H24 Gate turn-off thyristors (D 921S45 T diodes), 14 thyristors per unit (two units). Line converter rated at 2 x 1269 V @ 50 Hz, with DC link voltage of 2800 V. Motor/drive converter rated at 2180 V phase to phase, 971 A output current per phase, motor frequency from 0 to 132 Hz.
Hauling capacity: 4250 t
Bogies: Co-Co, ABB bogies; bogie wheelbase 1850 mm + 1850 mm
Wheelbase: 15700 mm
Axle load: 20.5 t
Unsprung mass per axle: 3.984 t
Length over buffers: 20562 mm
Length over headstocks: 19280 mm
Body width: 3152 mm
Cab length: 2434 mm
Pantographs: Two Secheron ES10 1Q3-2500.
Pantograph locked down height: 4525 mm
