For the benefit of all, if you want any AC, DC or Dual Current electric loco related update please refer this...........
A treasure which I collected for all rail fans and admin guys.......... so that our sweet family(i.e this community) will be in sync all the time......
Rail Board has decided finally that three main AC electric Locomotive(i.e WAP 4,WAP5 & WAP7) will be produced in future by CLW and none of these three will stop in future and in addition WAG 7 will also be continued by CLW.
Only...
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WAM 4 production is stopped..........
Here is the brief description of the main three passenger locos:
1 WAP 4:
• Manufacturers: CLW
• Traction Motors: Hitachi HS15250 (630kW, 750V, 900A. 895rpm. Weight 3500kg). Axle-hung, nose-suspended, force ventilated, taper roller bearings.
• Gear Ratio: 23:58 (One loco, #22559, is said to have a 23:59 ratio.)
• Transformer: 5400kVA, 32 taps
• Rectifiers: Two silicon rectifiers, (ratings?).
• Axle load: 18.8t.
• Bogies: Co-Co Flexicoil Mark 1 cast bogies; primary and secondary wheel springs with bolsters
• Pantographs: Two Stone India (Calcutta) AM-12.
• Current Ratings: 1000A/10min, 900A continuous
• Tractive Effort: 30.8t
A 24-coach (1430t) passenger rake can be accelerated to 110km/h in 338 seconds (over 6.9km) by a WAP-4; to 120km/h in 455 sec. (10.5km); and to 130km/h in 741 sec. (20.5km).
2 WAP 5:
• Manufacturers: ABB / CLW
• Traction Motors: ABB's 6FXA 7059 3-phase squirrel cage induction motors (1150kW, 2180V, 370/450A, 1583/3147 rpm) Weight 2050kg. Forced-air ventilation, fully suspended. Torque 6930/10000Nm. 96% efficiency.
• Gear Ratio: 67:35:17. (3-stage gears)
• Transformer: ABB's LOT-7500. 7475kVA primary, 4x1450kVA secondary.
• Power Drive: Power convertor from ABB, type UW-2423-2810 with SG 3000G X H24 GTO thyristors (D 921S45 T diodes), 14 thyristors per unit (two units). Line convertor rated at 2 x 1269V @ 50Hz, with DC link voltage of 2180V. Drive convertor rated at 2180V phase to phase, 953A output current per phase, motor frequency from 0 to 160Hz.
• Axle load: 19.5t
• Bogies: Bo-Bo Henschel Flexifloat; bogie centre distance 10200mm; bogie wheel base 2800mm
• Unsprung mass per axle: 2.69t
• Pantographs: Two Stone India (Calcutta) AN-12.
• Wheel diameter: 1092mm new, 1016mm worn
• Wheel base: 13000mm
• Length over buffers: 18162mm
• Length over headstocks: 19280mm
• Body width: 3142mmn
• Cab length: 2434mm
• Pantograph locked down height: 4537mm
• Tractive Effort: 26.3t
A 24-coach (1430t) passenger rake can be accelerated to 110km/h in 312 seconds (over 6km) by a WAP-5; to 120km/h in 402 sec. (6.9km); and to 130km/h in 556 sec. (14.2km).
3 WAP 7:
• Manufacturers: CLW
• Traction Motors: 6FRA 6068 3-phase squirrel-cage induction motors (850kW, 2180V, 1283/2484 rpm, 270/310A. Weight 2100kg, forced-air ventilation, axle-hung, nose-suspended. Torque 6330/7140Nm. 95% efficiency.)
• Gear Ratio: 72:20
• Axle load: 20.5t
• Wheel diameter: 1092mm new, 1016mm worn
• Wheel base: 15700mm
• Bogies: Co-Co, ABB bogies; bogie wheel base 1850mm + 1850mm
• Unsprung mass per axle: 3.984t
• Length over buffers: 20562mm
• Length over headstocks: 19280mm
• Body width: 3152mmn
• Cab length: 2434mm
• Pantograph locked down height: 4525mm
• Tractive Effort: 36.0t
A 24-coach (1430t) passenger rake can be accelerated to 110km/h in 240 seconds (over 4.7km) by a WAP-7; to 120km/h in 304 sec. (6.7km); and to 130km/h in 394 sec. (9.9km).
All rail fans are requested to read the attachment from which they will know the future production and past production detail of these three passenger locos and other freight locos in a very detailed manner and every important details of CLW(Chittaranjan Locomotive Works)
For DC Loco:
The Link is: "click here
For Dual Current Locomotives:
The Link is: "click here