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Blog Entry# 1782055  
Posted: Mar 28 2016 (11:36)

12 Responses
Last Response: Mar 30 2016 (10:27)
★★★  General Travel
Mar 28 2016 (11:36)   GZB/Ghaziabad Junction (6 PFs)

Guest: 7fc2cfad   show all posts
Entry# 1782055            Tags   Past Edits
Ref : /blog/post/1780789
********* Installation of HOG System in Normal WAP-7 Locomotives **********
As we all know that HOG Provision is kept in every WAP-7 Class of Loconotives. So,
I think Indian Railways can install HOG System(Head On Generation System) in their existing Normal WAP -7 Locomotives of Various Sheds & Zones(Non HOG WAP-7s) as per requirement. If this is done then it won't be required to produce New HOG WAP-7 all the Time & it will be COST Effective also as Indian Railways is concerned.
Now HOG WAP-7 has great demand so IR can adopt this Procedure to equip their Normal WAP-7 with HOG System as per requirement which will avoid the Time of Commissioning of New HOG WAP-7 as existing Normal WAP-7 can easily be commissioned after Installation of HOG system in the same.
Views are welcome !!!!
Attached Image Link: click here
Credits of attached Video: Pranav Chaware

5 posts - Mon Mar 28, 2016

2 posts - Tue Mar 29, 2016

Mar 29 2016 (09:24)
Guest: 7fc2c2b0   show all posts
Re# 1782055-14            Tags   Past Edits
Hope CLW will soon get Composite Converter for WAP-5 so that it can be HOG Enabled.

Mar 29 2016 (14:17)
cosyindia108*^~   971 blog posts   1550 correct pred (58% accurate)
Re# 1782055-17            Tags   Past Edits
once wap-7 hog system is success ., then let rajdhani & duranto retain 2 p.c., and 2 e.o.g. be reconverted with passenger berths ., and guards be part of same in 1/3rd of coach , this will increase berths by about 120 per rack '' on fully electrified routes ''

Mar 29 2016 (14:22)
180 years of Railways in India~   2111 blog posts
Re# 1782055-18            Tags   Past Edits
One power car is still compulsory even for HOG locos. The second EOG car will also be most likely retained as a backup.

Mar 29 2016 (22:43)
180 years of Railways in India~   2111 blog posts
Re# 1782055-27            Tags   Past Edits
It's puzzling why CLW delayed the HOG addition to WAP4's so much. The three phasers at least provided several challenges to CLW initially that had to be solved before even using the loco for normal operations ( Both P7 and P5 had so many initial struggles) and so it's understandable that these new enhancements took some time to materialize. The WAP4 design was something CLW was very familiar with and there was nothing new for them to worry about. They should have come out with a HOG system for it long ago!

Mar 30 2016 (10:27)
†★⚡ WAP5 ⚡★†   6038 blog posts   278 correct pred (90% accurate)
Re# 1782055-28            Tags   Past Edits
Another irony : P5 already had extra windings in its main transformer for the provision of HOG. It only required a 'converter'. But IR never made use of it :P. Only now, they made its composite converter although it was proposed in 2012. We're still yet to see its HOG variant rolling out.
P4's HOG is still under research BTW and in due course of time, it'll be equipped with HOG converter.

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