Indian Railways WAG class
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.
WAG 1
- Variants
- WAG 1 - 1S
- Specification
- Build dates: 1963-66
- Wheel arrangement: B-B
- Traction motors: AEC/Alstom/Siemens MG1420. Two motors (monomotor bogies), force-ventilated, fully suspended.
- Gear ratio: 3.95:1
- Transformer: MFO, type BOT 3150. 22.5kV / 3000kVA. 32 taps.
- Rectifiers: Secheron A268 Excitrons (four). 510A / 1250V.
- Axle load: 21.3t
- Max. Haulage: 1820t
- Pantographs: Two Faiveley AM-12
WAG 2
- Variants
- WAG 2
- Specification
- Build dates: 1964-65
- Wheel arrangement: B-B
- Traction Motors: Hitachi EFCO HKK (1270 kW, 1250V, 1080A, 695rpm, weight 5300 kg).
- Transformer: Hitachi AFI AMOC. 32 taps.
- Rectifiers: AEV-48 silicon rectifiers, 2040A / 2550 kW.
- Pantographs: Two Faiveley AM-12
WAG 3
- Variants
- WAG 3
- Specification
- Build date: 1965
- Builder: Henschel
- Wheel arrangement: B-B
WAG 4
- Variants
- WAG 4
- Specification
- Build dates: 1966-71
- Wheel arrangement: B-B
- Traction Motors: AGEC make, MG 1580 A1 (1160 kW, 1270V, 1040A, 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, 1000A/1270 kW/1270V. Weight 650 kg each.
- Axle Load: 21.9t
- Hauling capacity: 2000t
WAG 5
Indian locomotive class WAG-5
Main article: Indian locomotive class WAG-5
- 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, 750V, 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. 3900kVA, 22.5kV, 182A. 32 taps.
- Rectifiers: Silicon rectifiers (two) using 64 S-18FN-350 diodes each from Hind Rectifier. 2700A / 1050V per cubicle.
- Bogies: Co-Co cast bogies (Alco asymmetric trimount—shared with WDM-2, WAM-4).
- Axle load: 20t
- Max. Haulage: 2375t
- Pantographs: Two Faiveley AM-12
- Current Ratings: 1100A/10min, 750A continuous
WAG 6
- Variants
- WAG 6 - 6A, 6B, 6C
- Specification
- Build dates:
- WAG 6A, 1988–89
- WAG 6B, 1988
- WAG 6C, 1988
- Wheel arrangement:
- 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, 7533kVA; (WAG-6B/C) Hitachi AFIC-MS, 6325kVA.
- Thyristor controller: (WAG-6A) 24 YST 45-26P24C thyristors each with 24 YSD35-OIP26 diodes, 2x511V, 2x4500A; (WAG-6B/C) 32 CGOIDA thyristors each with 24 DSP2500A diodes. 2x720A, 850V.
- Pantographs: (WAG-6A) Two Stemman BS 95; (WAG-6B/C) Two Faiveley LV2600
WAG 7
Indian locomotive class WAG-7 (old variant)
Main article: Indian locomotive class WAG-7
- Variants
- WAG 7 - 7H
- Specification
- Build dates: 1992+
- 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, 5400kVA, 32 taps.
- Rectifiers: Two silicon rectifiers, cell type S18FN350 (from Hind Rectifier), 64 per bridge, 2700A / 1050V per cubicle.
- Axle load: 20.5t
- Bogies: Alco High-Adhesion bogies, fabricated bogie frame assembly, with unidirectional mounting of traction motors, primary and secondary suspension.
- Hauling Capacity: 3010t
- Pantographs: Two Stone India (Calcutta) type AM-12.
- Current Ratings: 1350A/2min, 1200A/10min, 960A/hr, 900A continuous
WAG 8
- 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.
WAG 9
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Indian locomotive class WAG-9
Main article: Indian locomotive class WAG-9
- Variants
- WAG 9 - 9H
- Specification
- Build dates: 1996+
- Wheel arrangement: Co-Co
- Manufacturers: ABB, CLW
- Traction Motors: ABB's 6FRA 6068 (850 kW, 2180V, 1283/2484 rpm, 270/310A. Weight 2100 kg) Axle-hung, nose-suspended.
- Gear Ratio: 77:15 / 64:18
- Transformer: ABB's LOT 6500, 4x1450kVA.
- 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 1269V @ 50 Hz, with DC link voltage of 2800V. Motor/drive converter rated at 2180V phase to phase, 971A output current per phase, motor frequency from 0 to 132 Hz.
- Hauling capacity: 4250t
- Bogies: Co-Co, ABB bogies; bogie wheelbase 1850mm + 1850mm
- Wheelbase: 15700mm
- Axle load: 20.5t
- Unsprung mass per axle: 3.984t
- Length over buffers: 20562mm
- Length over headstocks: 19280mm
- Body width: 3152mmn
- Cab length: 2434mm
- Pantographs: Two Secheron ES10 1Q3-2500.
- Pantograph locked down height: 4525mm
See also
References
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