Actually you are right if you see other Pure AC locos. This is an AC-DC locos!! The above line is only true for WCAM-1, WCAM-2/2P, WCAM-3, WCAG-1. For other locos yes the other Panto acts as a spare.
Any pAnto can be used for any type of voltage (AC-DC) in case of all WCAM. Though in practice, front pAnto is used for DC and back pento for AC. Front pAnto has wide contact brushes to pull more current from low voltage DC Line. If front pAnto is not working then back pAnto can be used as DC-pAnto TOO
How does AC/DC switch works on the station with dual voltage in catenary? I mean when the train is standing still. Loco should lower pantograph, then dispatcher switches current, then pantograph goes up again?
Yes. But that use to happen some selective stations around Mumbai but in those days, IR didnt have these AC-DC loco. So the Locomotive too was changed. So like in Igatpuri, Pure AC locomotive use to come arrive at the pf, it use tobe detached, directed to AC Loco Trip shed, OHE current use to switch, then a DC loco use to come out of the DC Loco trip shed and gets attached to the train which was very much time consuming!!! Each loco change use to take 30-40min easy!!!! When AC-DC locos came in, there were 3 dedicated stations on the 3 routes which use to act as loco change station. No changing the ohe current started saving time!! These stations had crew change too so the crew use tobe ready with the loco hence that too saved time Western railways Baroda/Valsad (earlier Valsad was AC-DC loco changing station) Central Railways Kasara for North East line And Pune in southeast line. But ahead of Pune was diesel territory so Electric to Diesel was done!!!
We want dual voltage loco WCAM3 in every electrifed route because this can work on both dual voltage like AC & DC current also.So we want dual voltage supply in dual mode locomotive which have power of dual voltage like AC & DC current and diesel supply in one loco like dual mode locomotive.
How does the loco pilot come to know that it is exactly the neutral zone and hence he has to change the panto accordingly? Will there be any sign of it?
How does the loco pilot come to know that it is exactly the neutral zone and the panto needs to be changed accordingly? Will there be any sign of it for him to proceed?
Yes . Mumbai Suburban is now completely AC territory now. It was one of the most difficult section to convert from DC to AC due to the old bridges constructed during British era 😃.
No loco will get stop signal there. And even if any loco stops in dead zone unfortunately then shunting diesel loco will come and pull out the train from dead zone. This will be big mess. Timetable of other trains will get disturbed.
Samne waaala Pantograph AC traction ke lie tha Piche waaala DC traction current ke lie hai Loco DC section me jaaraha tha islie Panto change karna pada
+Nutan Dwivedi mumbai was electrified before the whole indian Railways system. But it was under 1500V DC traction. The rest of india was electrified under 25kV AC traction wires. When they realized that AC traction was better than DC traction, tuey decided to change the DC wires to AC. The conversion was in stages as rolling stock was DC compatible and not AC compatoblle. Mainly talking about the EMUs here. Once the dual voltage EMUs started to come in, small sections were converted to AC traction. This video was taken before the final stage of conversion of CR mainline. The train coming from Thane Station is under AC traction and area behind me is under DC traction. The train comes in with Momentum and lowers the AC Pantograph and after crossong the neutral zone (section with no current), raises the DC pantograph. Only WCAM Class locos were dual voltage locomotives which were capable of doing this!!!
@@tandelbaba hey bro may I know nowadays all ac conversation done then why many superfast express like nandigram amravati pune express still using wcam loco instsead of wap4 wap 7
Loco is so called in isolated mode. Applying brakes and other important functions works. Bascilly traction motors is off!!!! Cant accelerate during that phase!!!
@@hanishkhanchandani1602 depends on which line you go!!!!! Slow line mein Kopar - Diva - Mumbra - Kalva - Thane. For fast line which goes via Parsik Tunnel, its Kopar - Diva - Thane!!!
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Wonderfully captured, loved the part when you zoom in and focus on the Locomotive's pantograph.
Thank you very much!!!!!
Tandelbaba ::::: The OLDEST & ORIGINAL railway connoisseur who taught us and enriched our knowledge about Indian Railways....Thanks Tandelbaba
+GS Narayanan no no. There are older and more original railway connoisseur than me. But appretiated. Thabk you very much!!!!
Tandelbaba - I appreciate your modesty also
Precious video.This is another page in the history of CR
The zoom on the panto was fabulous, loved your work😊😊
Thank you very mu h!!!!
i didnt know that. the two pantographs are for ac dc purpose?
cool. i used to believe that one is spare or for reverse journey.
Actually you are right if you see other Pure AC locos. This is an AC-DC locos!! The above line is only true for WCAM-1, WCAM-2/2P, WCAM-3, WCAG-1. For other locos yes the other Panto acts as a spare.
Any pAnto can be used for any type of voltage (AC-DC) in case of all WCAM. Though in practice, front pAnto is used for DC and back pento for AC. Front pAnto has wide contact brushes to pull more current from low voltage DC Line. If front pAnto is not working then back pAnto can be used as DC-pAnto TOO
What a video ! Great catch !! Thanks for sharing
Abhinav LHB thank you very much!!!
How does AC/DC switch works on the station with dual voltage in catenary? I mean when the train is standing still. Loco should lower pantograph, then dispatcher switches current, then pantograph goes up again?
Yes. But that use to happen some selective stations around Mumbai but in those days, IR didnt have these AC-DC loco. So the Locomotive too was changed. So like in Igatpuri, Pure AC locomotive use to come arrive at the pf, it use tobe detached, directed to AC Loco Trip shed, OHE current use to switch, then a DC loco use to come out of the DC Loco trip shed and gets attached to the train which was very much time consuming!!! Each loco change use to take 30-40min easy!!!! When AC-DC locos came in, there were 3 dedicated stations on the 3 routes which use to act as loco change station. No changing the ohe current started saving time!! These stations had crew change too so the crew use tobe ready with the loco hence that too saved time
Western railways Baroda/Valsad (earlier Valsad was AC-DC loco changing station)
Central Railways Kasara for North East line
And Pune in southeast line. But ahead of Pune was diesel territory so Electric to Diesel was done!!!
We want dual voltage loco WCAM3 in every electrifed route because this can work on both dual voltage like AC & DC current also.So we want dual voltage supply in dual mode locomotive which have power of dual voltage like AC & DC current and diesel supply in one loco like dual mode locomotive.
How does the loco pilot come to know that it is exactly the neutral zone and hence he has to change the panto accordingly? Will there be any sign of it?
Boards on the Catenery!!!! Also an audible Alram which has a sensor on track!!!!
What is need now!!! Mumbai Suburban section has been converted to AC traction 2 years ago!!!
How does the loco pilot come to know that it is exactly the neutral zone and the panto needs to be changed accordingly? Will there be any sign of it for him to proceed?
There are warning signs.
also, There's track magnets that communicate with the locomotive onboard relay to inform the locomotive pilot in advance
change over very nicely captured in video
+Naresh Phabiani thank you very much!!!
nicely captured the change over
+Railfan Shreyas Sadhale thank you mate
Brilliant!
Sudhindra Srikanth thank yoU!!
why it was changed from AC to DC? Any reasons? Please help
+Saran Suresh MUmbai Suburban section was always under DC Current rather than rest of India which was Under AC Current.
Where was this. Poles read 31/2. Before Thana?
1:11 Yeh Bartan Kon Peet Raha Hai Train Ke Pahiyo Me 😂😂😂
ausumm and nicely pointed.
Nikhil Vaidya thank you very much!!!
Superb
awesome capture :)
Arindam WAP-7 thank you very much!!!
Where is this exactly ? Is the whole of Mumbai ac now ?
***** this is below Kopri Bridge!!!!
Yes . Mumbai Suburban is now completely AC territory now. It was one of the most difficult section to convert from DC to AC due to the old bridges constructed during British era 😃.
nice capture of panto action
***** thank you very much!!!
What if they have a stop signal at that point?! You got my point. How do they make it across, if they are forced to stop?
No loco will get stop signal there. And even if any loco stops in dead zone unfortunately then shunting diesel loco will come and pull out the train from dead zone. This will be big mess. Timetable of other trains will get disturbed.
@@Indian-from-India I see...
nice video
Thank you!!!
Good video
Glad you enjoyed!!!!
awesome
+DINESH GADA thank you!!!;
nice video.
Superb Capture
I never chanced to see ac/dc or dc traction locos.....but nice capture.... very rare... 😁
Thanks for watching!!!!! yes now obsolete!!!!!
very nice
thank u tendalbaba😊😊😊👍👍
+Murli manohar Kashyap thank you very much!!!
Awesomeness of electrical engineering!! 😯😯😯
+Piyush InfoUna true!!!!!
Awesome capture sir 😲
Thank you very muxh!!!
front panto up kyu tha?? rear wala up hona chahiye tha na
Samne waaala Pantograph AC traction ke lie tha Piche waaala DC traction current ke lie hai
Loco DC section me jaaraha tha islie Panto change karna pada
Tricky business... in Europe there are five electrification systems... it is difficult to cope with just two...
Juan Manuel Grijalvo very Right!!!!! But 5?? How do they handle that!!!!
very nice yar👌👌👍
+Murli manohar Kashyap thank you very much!!!!
NICE 1 BABA
Kushal Dave thank you DaveG!!!!
so, for that few seconds, the train is not under power?? i mean is it in netural like in cars?
Aditya Sapkal Off like ka car!!!! Compressor works on Battery!!!
nice :)
Amazing IndianRailways thanx!!!
Unique capture !!
So nice my railways
Tandelbaba plzz explain again whole reason behind switching..??
+Nutan Dwivedi mumbai was electrified before the whole indian Railways system. But it was under 1500V DC traction. The rest of india was electrified under 25kV AC traction wires. When they realized that AC traction was better than DC traction, tuey decided to change the DC wires to AC. The conversion was in stages as rolling stock was DC compatible and not AC compatoblle. Mainly talking about the EMUs here. Once the dual voltage EMUs started to come in, small sections were converted to AC traction. This video was taken before the final stage of conversion of CR mainline. The train coming from Thane Station is under AC traction and area behind me is under DC traction. The train comes in with Momentum and lowers the AC Pantograph and after crossong the neutral zone (section with no current), raises the DC pantograph. Only WCAM Class locos were dual voltage locomotives which were capable of doing this!!!
Thanks a lot for clearing this huge doubt!!!!!
I really appreciate ur explanation, u have very good knowledge about railways!!!!!
+Nutan Dwivedi not an issue. There are people around having more knowledge about the railways than me!!!!
@@tandelbaba hey bro may I know nowadays all ac conversation done then why many superfast express like nandigram amravati pune express still using wcam loco instsead of wap4 wap 7
Nice capture
Thank you very muxh!!!!!!
Good One!
Synopsis Of Indian Railways thank you!!!
Very nice
Thank you very much!!!
beautiful
+shoeb sayyed thank you!!!!
Why did the EMU not followed the same thing?
Because emu has it inbuilt. It does, but doesnt need to lower panto.
I still did not understand it. What is inbuilt in the EMU. @@tandelbaba Sir, could you please elaborate?
Hope you know mumbai was under DC and rest of India was under AC current in the OHE lines?
Which train it was?
Was the loco working when when both Pantos were down?
Loco is so called in isolated mode. Applying brakes and other important functions works. Bascilly traction motors is off!!!! Cant accelerate during that phase!!!
the locomotive is moving by momentum, even though there is no supply to the traction motors
Which place???
This was Thane outer.
Location?
Mumbai
It might be a neutral zone
+Everything in Telugu yes AC DC neutral zone. Not AC AC neutral zone!!!!
Which location is this
This is thane!!!!
@@tandelbaba kopar AUR Thane ke beech kitni stations hai
@@hanishkhanchandani1602 depends on which line you go!!!!! Slow line mein Kopar - Diva - Mumbra - Kalva - Thane.
For fast line which goes via Parsik Tunnel, its Kopar - Diva - Thane!!!
@@tandelbaba ok thanks for this information
Mast capture maaraa
Rishikesh Shinde thank you!!!!
Train Ac current ya Dc current Mai chalta Hai mra simple question Hai........? Plzz explain it
+my family family videos it was DC curremt some years ago!!! Now all is AC!!!
tandelbaba thanks for information
Superb