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#TRIBUTETOWAM4
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---------------- Dedicated Blog on Traction Motor of WAM-4 Locomotive, TAO 659-------------------
In this Blog I have shared the MAINTENANCE HANDBOOK ON TRACTION MOTOR TAO -...
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659
Brief Details about this Traction Motor:
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Traction Motor is the most important part of a locomotive. This motor is mostly a D.C. Series Commutator Motor, therefore it requires regular maintenance.
The general technical specifications of the motor are:
Make : Alsthom/CLW.
Type : TAO-659
Insulation : Class `H’ (Both armature & field)
Suspension : Axle hung nose suspended.
Ventilation : Air forced.
Weight (complete) : 2800 Kg.
Temperature rise : Armature - 140°C, Field - 160°C.
Coil resistance : At 110°C
a) Armature - 0.012 Ω
b) Main Pole - 0.01117Ω
c) Inter Pole- 0.008 Ω
Rating : Continuos One Hour
HP : 770 HP 798 HP
Shaft output : 575 kW
Voltage : 750 V DC 750 V, Max-800/2 V
Current : 840 Amps. 855 Amps.
Speed : 1095 RPM 2500 RPM (max)
Air gap : Main Pole Inter pole
5.5 mm. 6.0 mm
Armature :
Weight : 850 KGs.
Length : 390 mm.
Core OD : 500 mm.
Laminations : 0.5 mm thick, Gr. No. 260
Net weight of : 67 Kgs.
copper
Winding : Lap - progressive.
Commutator :
Diameter : New - 380 mm, Condemning - 364 mm.
Useful length : 140 mm.
Radial wear : 8 mm (max)
No.of segments : 276 Nos.
Mica thickness : 1.2 mm (between segments)
Mica under : 1.8 + 0.2 + 0
cutting depth + 0
Brushes :
Grade : EG 367 or EG 105.
No.of holders : 6 Nos.
Brush/holder : 3 Nos.
Size : 2 x 8x43
Min. height : New - 52 mm., Worn - 27 mm.
Spring pressure : 2.2 to 2.4 Kgs.
Gear Ratio : 62:15, 58:21
Permanent shunt : 5 %
Bearing
Type : CE -NJ 318, PE -NU 328
Make : SKF, NBC, FAG, NORMA
Lubrication : Shell Albania EP 2.
Clearance : Diametrical - CE 0.30 mm
- PE 0.035 mm
For more details : click here
This PDF Document containing the MAINTENANCE HANDBOOK ON TRACTION MOTOR TAO - 659 is attached with this BLOG for ready reference.
Attached Image:
ET wam-4 20691 at hbj siding.
Link: ET WAM-4 20691