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Blog Entry# 2192030
Posted: Mar 09 2017 (23:38)

18 Responses
Last Response: Apr 13 2017 (11:53)
General Travel
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★★★
Mar 09 2017 (23:38)  
Ashu_IR~
Ashu_IR~   1448 blog posts
Entry# 2192030               Past Edits
#FAQ
Why Locos run with front pantograph up during winter, foggy conditions or heavy rainfall?
Answer-- It is because of the dew during winter season. The extreme cold weather conditions cause the formation of dew which might affect the working of the servo motor which is connected to the small air tanks,which lifts the pantograph. The cool dew or even frost sometimes might jam the motor and affect the working of pantograph. If the rear pantograph is used during winter, the dew from the catenary(OHE) falls over the servo motor and affects...
more...
its working thus affecting the lifting of pantograph. In the case of front pantograph, dew does not fall on the servo motor while loco is in motion.
The servo motor controls the air pressure in the small air pressure tanks located just below the pantograph(as seen in the picture); Thus indirectly it controls the pantograph movement.
Thus for hassle free working of servo motors of pantograph, front one is used during the foggy weather in winter season.
Pictures are for representational purpose only. Second pic shows the servo motors of the pantograph.
Happy to Share... :)
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Mar 11 2017 (17:02)
Ashu_IR~
Ashu_IR~   1448 blog posts
Re# 2192030-14              
Ok.....this seems more relevant..!!
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Apr 02 2017 (13:31)
Ashu_IR~
Ashu_IR~   1448 blog posts
Re# 2192030-15              
The metal strip on the pantograph assures that the water does not fall below the panto. The metal strip (as seen in the picture) just spreads away the water collected by the panto during motion. It is there to prevent the servo motors mounted below the panto from any possible damage by water.
You might have observed that small metallic strip on the pantos of WAP 7 and WAP 4E too...!!
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Apr 12 2017 (16:53)
Sunil_bhagale_2~
Sunil_bhagale_2~   1690 blog posts
Re# 2192030-16              
Admin plz enable me to create imaginary trains
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Apr 12 2017 (17:11)
12658ChennaiMail^~
12658ChennaiMail^~   13184 blog posts
Re# 2192030-17              
Enabled
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Apr 13 2017 (11:53)
Sunil_bhagale_2~
Sunil_bhagale_2~   1690 blog posts
Re# 2192030-18              
Thank U Sir
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