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Blog Entry# 4330407
Posted: May 30 2019 (21:16)

9 Responses
Last Response: Jun 03 2019 (10:12)
1 Followers
Rail Fanning
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May 30 2019 (21:16)   RDG/Rayadurg Junction (2 PFs)
SteelCityRF^~
SteelCityRF^~   27498 blog posts
Entry# 4330407            Tags   Past Edits
2 compliments
Great Work Bro👍👍 Thank you 🚊
#Electrificationupdate of Rayadurgam Junction - Ballari Junction section as on #May29th2019
🔸Rayadurgam Junction
1) Large SB
🔸Rayadurgam Junction - Somalapuram
2) OHE pole foundations were spotted for a small stretch
3)
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OHE poles were spotted for most of the stretch except bridge
🔸Somalapuram
4) Station picture (Old picture)
5) OHE poles with insulators were spotted
🔸Somalapuram - Obulapuram
6) OHE poles were spotted for entire stretch
🔸Obulapuram
7) Large SB (Old picture)
8) OHE poles with insulators were spotted
9) & 10) OHE poles and portals were dumped
🔸Obulapuram - Ballari Junction
11) & 12) OHE poles were spotted for entire stretch
13) & 14) Wiring started at Ballari Junction outer from 1.2 km
15) Ballari Junction SB (Old picture)
Pictures source: Self

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May 31 2019 (18:38)
Irshad13~
Irshad13~   8101 blog posts
Re# 4330407-6              
Hhm but I am saying parking of Eloco not Dloco as Eloco need Trip shed to hold Eloco for longer time to make LSA so for temporary thing they can't go for that service at JRU i think but instead they can wait for entire RE of JRU Chikkananavar or at least Arsikere might get that facility as it's important junction on that line catering Hassan Mangaluru and Bengaluru Hubli both..
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May 31 2019 (19:11)
SteelCityRF^~
SteelCityRF^~   27498 blog posts
Re# 4330407-7              
I spotted a different kind of OHE pole. This pole will have wiring but it will be exactly in opposite direction of regular OHE pole which carries electricity for electric loco. There will be many OHE poles like this but there will be not any track below these OHE poles. Can anybody tell what kind of OHE pole is this? What is the purpose of this OHE pole?
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May 31 2019 (19:20)
Irshad13~
Irshad13~   8101 blog posts
Re# 4330407-8              
Where u found this one? I have no idea on those poles but I guess those are just errected nearer to TSS to feed power from TSS to Main lines but not sure what I guessed is right..
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May 31 2019 (20:12)
SteelCityRF^~
SteelCityRF^~   27498 blog posts
Re# 4330407-9              
I found both near Ballari Junction. 1st photo is towards Chikjajur side & 2nd photo is towards Hosapete side. There is no TSS near these poles
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Jun 03 2019 (10:12)
TheMadrasMail~
TheMadrasMail~   6349 blog posts
Re# 4330407-10              
1 compliments
Thanks sir
This is probably a 'return conductor'.

Basically, every electrical circuit needs to be a closed loop (Like how a battery has two terminals and every thing has to be connected to both terminals of the battery with two wires, to work).

To
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explain in simple terms (though this explanation is technically NOT very accurate), think of the generator at the power station as a having a positive and a negative terminal like a battery. To make the motor in an electric loco work, the positive and negative terminals of the motor have to be connected to the positive and negative terminals of the generator. (There is no positive or negative terminal per se, for an AC alternator, this is only for the sake of explanation)

But we see that our OHE normally has only 1 wire which is in contact with the pantograph (Think of this as the wire connecting the positive terminals). So a second connection is required between the negative terminals to complete the circuit.

Normally, the rails themselves are used for this. Current coming from the OHE passes through the traction motors, and then through the wheels of the loco into the rails below. At regular intervals, the the rails are grounded. Similarly one end of the generator is also grounded. So the earth itself acts as the other wire.

However, the rails are also used for track circuits to control signalling, and there will be railway/telecom communcation cables also near the railway tracks. In some cases, these cables will be close enough to the tracks that the return current in the steel rails can affect the signals in these cables. In these cases, a separate 'return conductor' is provided (which is basically just a wire which is connected to the rails at regular intervals) high above the ground, to minimize the interference.

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