Indian locomotive class WAG-9

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Indian locomotive class WAG-9
Indian locomotive class WAG-9

WAG-9 is the name of a type of electric locomotive used in India. Based at Gomoh, Ajni and Lallaguda, it is currently the most powerful locomotive in Indian Railways' fleet. It is very similar to the class WAP-7; The only difference being the gear ratio which makes it suitable for heavy freight operations. In November 1998, CLW started producing these with indigenous components. The first one, 'Navyug' (translated, 'New Era'), was flagged off on Nov. 14. They have (like the WAP-5 units) GTO thyristor converters and 3-phase asynchronous motors.

There is a technical variant of this class named WAG-9H.

Contents

[edit] Technical specifications[1]

Manufacturers ABB, CLW
Traction Motors ABB's 6FRA 6068 (850kW, 2180V, 1283/2484 rpm, 270/310A. Weight 2100kg) 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 GTO 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, Fabricated Flexicoil Mark IV bogies; bogie wheel base 1850mm + 1850mm
Wheel base 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

[edit] Notes and references

  1. ^ Indian AC electric loco information

[edit] See also

[edit] External links



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