Search Forum
Blog Entry# 1813544
Posted: Apr 21 2016 (13:57)
9 Responses
Last Response: Apr 22 2016 (23:38)
9 Responses
Last Response: Apr 22 2016 (23:38)
#railwayengineering
**** Please Share Views on the Following Technical Changes I think on the 3-Phase Loco of Indian Railways *****
WAP-7(NOW)
Gear Ratio: 72:20
Power output Maximum: 6,350 hp
Continuous:...
more...
**** Please Share Views on the Following Technical Changes I think on the 3-Phase Loco of Indian Railways *****
WAP-7(NOW)
Gear Ratio: 72:20
Power output Maximum: 6,350 hp
Continuous:...
more...
4 Posts
Many routes on SER and a few corridors are capable of handling 25t axle loads. In practice though, maximum axle load run by IR is 22.82t (CC + 8+2T) and 22.3t on some coal freights. The upcoming DFCs will support axle loads upto 30T.
Converting WAP7 to a 3 stage gear system is not necessary. The 3 stage gear system in WAP5 is not for higher speed. It is required in the WAP5, because the P5 has bogie mounted traction motors. What this means is that when there are irregularities in the track, the wheels' axle and the motor's axle can be come misaligned. To counter this, the P5 has a 3 stage gear box in which the middle gear is flexible and it ensures that the gears are still aligned even if the wheel's become misaligned.
The P7 has a axle hung TM, which means that the motor's axle and the wheels' axles are always perfectly aligned. Thus a 2 stage...
more...
The P7 has a axle hung TM, which means that the motor's axle and the wheels' axles are always perfectly aligned. Thus a 2 stage...
more...
All these changes (gear ratio, horsepower) are not needed. Rather than playing around with the existing locos, it makes more sense to develop new locos (preferably, own locos)! :)
--------
Passenger loco
Wheel configuration : Bo-Bo
Power...
more...
--------
Passenger loco
Wheel configuration : Bo-Bo
Power...
more...