High reach pantograph: world record set by Stone India
KOLKATA, India -- The new generation pantograph developed by Stone India for the Indian Railways allows an increase in the highest of the overhead wires (catenary height) from the standard 6 meters to 7.5 meters-setting the world record for the High Reach pantograph for highest catenary for electric locomotives.
Such a device is suitable for locomotives to be used for running double-stack containers as envisaged in the upcoming dedicated freight corridors being implemented by Indian Railways. (enlarge photo)
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will also enable Indian Railways to introduce double-decker passenger trains in high density suburban passenger route. The pantographs have already been commissioned successfully after extensive test by Indian Railways.
Stone India's innovation makes Indian Railway achieve this unprecedented feat to become the only railway in the world to run a train under a 7.5 meter-high contact wire.
The new-design world record pantograph , developed completely in-house, has many other added features, such as twin catenary height of 6 & 7.5 meters, auto upward-force adjustment to improve effective current collection in adverse conditions, thereby enabling reduction in energy consumption and allowing trains to run at much higher speeds.
The new design overcomes the traditional challenge of balancing a high-reach pantograph in double-stack container trains moving at a high speed in adverse wind conditions, hitherto faced by all global suppliers of pantographs.
Stone India Ltd has not only successfully designed and developed the improved pantograph in a record time but did it completely indigenously using its own expertise and with its own R&D setup using cutting edge simulation tools. The patented new series named as "Omniversal Intelipanto" has been supplied when other multinational companies failed to do so before commencement of the trial by Indian Railway in East Coast Railways which was witnessed by Japanese technical delegation.
The success of this design will not only help saving foreign currency but will benefit Indian Railways by enabling locomotives to run on electricity instead of costly diesel. Additionally this opens up the possibility of Indian Railways even running double-decker passenger trains in high density passenger routes through further increase of catenary height.
The Company plans to adopt this design in all its pantograph and plans to export such world record pantographs to countries, which propose to use electric traction for running double-stack container trains as well as double-decker passenger trains.
Stone India Ltd, a Kolkata based company, which has been serving Indian Railways for more than 77 years has pioneered the introduction of several systems to Indian Railways, including pantographs, used by the electric locomotives and EMUs. So far all these introductions have been through technical collaborations with overseas companies.
This marks the beginning of Stone India's major self-initiative & achievement to arrive at breakthrough innovative solutions for customers, which are generally fraught with skepticism of unachievable goals
Source: www.worldrecordacademy.com

from recent posts it has been noticed that "hwh wap4" of eastern railway has been used consistently with hwh cstm duronto for its high speed(max speed potential 130km/hr as sources claimed)......... as compared to src(santragachi wap4----- max speed 110 km/hr).
[depicted in picture 1 uploaded by me power of 12262 hwh cstm drnt standing at pf 22 of howrah]
i think if ser allows wap4 with a speed potential 130km/hr to ply in its railway territory then why not wap7!!!!!!!! a fully sophisticated loco with a max speed of 130-140 km/hr with...
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a superb pick up/accelaration capacity as per the situation.......................
[depicted in picture 2 uploaded by me the cabin and loco pilots of wap 7 which hauls tvc nzm rajdhani from kota to hazrat nizamuddin]
ser should use wap7(the white demon and the most successful loco presently in india for aristocrat trains like rajdhani and duronto) only for the following three non stop trains:
12262/12261 hwh cstm duronto
12222/12221 hwh pune duronto
12245/12246 hwh ypr duronto
please share views..........................