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Page#    1673 FAQs  <<prev  next>>
Sep 17 (10:32)

Entry# 2272     
What is Auto-Emergency Brakes (AEB) in WDG4 Locomotives ?

★  General Travel
Sep 17 (10:24)
Blog Post# 4718153-0     
Karthik.iyer27^~   Added by: Karthik.iyer27^~  Sep 17 (10:32)
What is Auto-Emergency Brakes (AEB) in WDG4 Locomotives ?

Introduction :-
Auto-Emergency Brakes (AEB) refers to a special system of braking employed on some ghat sections with steep gradients, notably the Braganza ghat between Kulem and Castle Rock. With this system, the loco's speed is limited to 30km/h and the brakes are automatically applied if the loco moves faster than that at any
time on the AEB section.

Procedures :-
The AEB system is activated by means of a key obtained at the top of the descending grade (at Castle Rock for the Braganza ghat). The key, which is specific to each loco, is engaged and turned in the loco, and then removed and handed to the guard of the train (except for light locos where there is no guard). While the AEB system is activated, the loco cannot run faster than 30km/h; the brakes are applied immediately if the speed rises above that.

When the loco reaches the bottom of the down grade (Kulem at the foothills of the Braganza ghat), the AEB system is deactivated and the key is handed over to the Station Master of the station at the bottom of the ghat section (Kulem). From there onwards, the loco can proceed at normal permissible speeds.

The AEB key specific to a loco is handed over to the loco pilot by the Station Master of the station at the bottom (Kulem) when the loco is above to ascend the ghat section.

Operation :-
The AEB system depends on a speed sensor attached to the axle generator (tachometer generator) of the locomotive. The speed sensor controls the Emergency Brake Relay (EBR). The EBR gets energized when the speed sensor detects that the loco is moving faster than 30km/h (or other programmed speed limit).

When the EBR is energized, two emergency brake valves, EBV1 and EBV2 get activated.

The first emergency brake valve EBV1 cuts off pilot air from A9 to C2, with the additional C2 relay then causing the Brake Pipe to exhaust, while the second emergency brake valve EBV2 also exhausts the Brake Pipe pressure and causes application of the brakes.
Sep 15 (15:41)

Entry# 2269     
How to create Imaginary trains properly for beginners here

★★★  Site-Related
Sep 15 (15:39)
Blog Post# 4716276-0     
s.r.k_1007^~   Added by: s.r.k_1007^~  Sep 15 (15:41)
How to create Img trains properly here for all the beginners here those who want to crete Img trains here.
Before you read all the steps to create Img trains here . I tell you all that creating Imgs is not bit easy here without knowing some tricks and methods here. If you dont know any tricks / Methods here , your train will get a lot of red flags here , so you should get to know some tricks/methods here as well. So that your Img trains would be superhit here.
read this methods here.


1. First click on trains column here then in that select Add imaginary train option here as seen in Pic.1 here. it is circled here in Picture 1 see this

2.After clicking on Add Imaginary trains here there you will get to see there are various tabs here like train number , train name , train classes like 2nd class , Sleeper , 3AC , 2 AC . Also below there is running days option here so that you can select the running days of train here accordingly. Plus there below it , below update button here there is purpose of train here , these all options , are shown in Pic 2. Then when you click that option of purpose of train here you will get to see these options here as shown in pic.3 here that Practical - Can be introcduced by IR , Famous for RF here , Non Practical - Futuristic here. Etc.

3.Just below the purpose of train here there is somewhat notes spacing given there you can write here the purpose of this train here or some sort of technical halt notes etc.

4. Just below the notes spacing here there is interactive TT creator below . Above this TT creator there is a button here saying Copy/Paste from Site here as shown in Pic.4 , so dont go for that here . Because it includes here copy paste of TT of real trains from .in here . And it would be somewhat difficult here to make trains by copy paste here so dont go for it mostly . You can use it when you want to create a real train in form of IMG here in case of extension here for adding same stn and timing here as well and your somewhat effort will reduce then in case of real trains in form of Img train here realted to extension of that particular train here.

5. Before you start creating your Img trains here , Just plan your Img train's route here from which route it must go here . Suppose if eg. I am creating a train from New Delhi to Kanpur here so I will decide a route here . Then I decided here that I will take it via GZB , ALJN , TDL , ETW here . So I will search a train from New Delhi to Kanpur here by this route here .

6. Then I will now search trains from New Delhi to Kanpur here . Then suppose here if I refered 12004 Swarna Shatabdi Express here . Then after finding that train here, on one piece of paper I will write hours covered by a train here from stn to stn for eg. If 12004 Covers 30 mins here from New Delhi to Ghaziabad as shown in Pic 5 then on piece of paper I will write it in this format as shown in pic 6 . Same with all with all stn to stn here like GZB - ALJN , ALJN - TDL here etc. I will write the hours covered from Stn to Stn on paper here .

7. After this all of the process here , start creating your train here , plan your timings accordingly which you think is more comfortable. Suppose If I decided here to make my train depart at 6:00 here from New Delhi then by refering those hours covered by real train , which is written on paper here I will refer those hours here and make arrivial according to that hours only . Means my train will arrive at Ghaziabad at 6:30 here by refering those hours here. Same with next halts here like Aligarh , Tundla , Etwah etc. Till your destination here. Just see the slacks of my img trains here in Pic 7. And 8 here , pic 8 is of my img train here

8. After doing all this click the update option here after doing all of this things here like train no , running days , train name , type here as well. As shown in pic 9. There is a update button here below the running days option here . Click on that and your train will be created here check in Pic 10 here.

9. After you train gets ready here you will get to see other things like Rake zone , RSA , coach composition , Platform No option here. About this will tell in next blog here how to do that .

* But remember one thing here that Before you create your train here if you are making M/E type Train here then you shall refer the M/E TT here , SF then SF TT here etc. Also make one thing sure that you need to request the FM's here to enable this option here itself . Orelse you may not get it here. Or need to get 50+ratings here.

I hope I tried here to deliver here you all the method of creating the TT of Imaginary trains here . In next part here I will tell you how to set the Coach Composition or type of coach , Rake zone , RSA of train here. It took me a lot of time here to write so hope you would have got a idea here , to how to make img trains here.
Thanks , Regards.
Jul 12 2018 (09:35)

Entry# 2091     
what is neutral zone???

★  General Travel
Sep 03 (14:14)
Blog Post# 4703484-0     
_V_K_^~   Added by: _V_K_^~  Sep 03 (14:14)

• A section in 25 KV OHE line in which there is no electricity is called a 'neutral section'. 25KV is being fed and maintained in Overhead electric wire through a number of Electric Substations. This is sent over long distances.

There are transmission and distribution losses in OHE. So to have continuous 25KV, in every 30-40 km , there is a Traction Sub-Station (TSS). There is a point where TSS-A ends its limit and TSS-B begins its limit. In between this, the section is called Neutral Section.

• Whenever a loco enters a neutral section, the loco is made off so as to prevent flash-off. Pantograph is lowered.

• Since a neutral section is around 40-50 metres, the speed has to be maintained by loco pilot such that just before entering neutral section, as the loco is made off, the loco can cover the gap section of 40-50 metres by its momentum.

Neutral Section cant be near Home Signal.

• It cannot be also near Starter or Advance starter.

• Neutral Section cannot be on an Up Gradient, as momentum looses as the loco is switched off. It cannot cover the distance of neutral section.

Neutral section cannot be on a steep curve.

Source - click here

Jul 12 2018 (09:17)
Blog Post# 3621793-8     
TheMadrasMail^~   Added by: TSAnubharadwaj^  Jul 12 2018 (09:35)
There are mainly two kinds of Neutral sections that have been used on IR.
1) On pure AC electrified sections, Neutral zones are short sections separating the OHE powered by two different substations.
Normally in the 3-phase electrification system, the OHE is powered by a single phase. Usually each substation powers a short section of the route. After this short distance, another substation will power the next section of OHE. Since both substations will be operating on separate phases, they cannot be connected electrically. So, at the
end of the OHE section powered by one substation, there is a short section where the OHE is not electrically connected to any external power. After this short section, the next substation takes over. The region where the OHE is not powered is called a neutral section.
2) Another kind of neutral section, that was there around Bombay, but not present now is a AC-DC neutral section. The railway electrification in Bombay and around was DC based, while the rest of IR was on AC. So, at stations like Igatpuri, there was a short section of OHE, which could be powered by either AC or DC (through a control switch). Normally this OHE would be disconnected from the supply, but based on the requirement, it can be either DC or AC.

Normally, as long as OHE wire is present and is with the correct tension, the panto need not be lowered. However, to prevent sparks and voltage spikes, the panto is disconnected from the internal electrical components of the loco. Essentially the loco is 'switched off' while passing through this section. However, depending on OHE condition and caution orders, sometimes the panto may be lowered even if the OHE wire is present in the neutral section.
Sep 02 (09:40)

Entry# 2268     
What is a Calling On Singal

Info Update
Sep 02 (09:39)
Blog Post# 4702001-0     
_V_K_^~   Added by: _V_K_^~  Sep 02 (09:40)
"Calling ON" Signal

• It Simply means "to Call". This is a subsidiary signal.

• This signal is located below the STOP signals of HOME, STARTER or INTERMEDIATE STARTER.

• This signal is NOT located below the ADVANCED STARTER.

• It is identified by black letter "C" on a white board.

• This is used in case of emergency.

• CALLING ON Signal and Main Signal are never given together.

Main uses ---

• If the HOME or STARTER signal is out of order, then the train cant be moved forward. On seeing the calling on Signal as YELLOW, although the main signal is RED, the loco pilot can move forward the train at very low speed.

• If a train is occupied on platform, the main signal will be red, because of interlocking. If a locomotive has to be connected or a link train has to be connected in the same platform, the CALLING ON signal is given as main signal will not work at that time.

Pics attached for reference .

Source - click here
Aug 30 (15:06)

Entry# 2267     
Can Train move against the direction of traffic on the Automatic Block Section?

Aug 28 (14:29)
Blog Post# 4697708-1     
railfan^~   Added by: railfan^~  Aug 30 (15:06)
In Automatic signalling territory, trains shall run in the established direction of traffic only, which means, for example, on most double line, down trains on down line and up trains on up lines are only allowed; (Most in the sense that there are some double line sections in Indian Railway where both up or down train are permitted to run simultaneously; for example, Mau jn. ~ Indara jn. section in NER). Movement of trains against the established direction of traffic is not permitted.
When in an emergency it becomes unavoidably necessary to move a train against the established direction of traffic, this shall be done only under special instructions which shall ensure that the line behind the said train upto the
station in rear is clear and free from obstruction.

When the train is unable to proceed further due to unusual occurrences like floods,
breaches, accidents etc., the following procedure shall be followed:
1. the train shall be protected in rear
2. inform Station Master in advance or Station Master in rear or SCOR or TPC and obtain
permission only from Station Master in rear to push back,
3. such permission can be given only by Station Master of the block station in rear provided
that no train has been despatched behind this train,
4. the said permission can be obtained by establishing telephone contact or by sending a
competent railway servant. If telephonically contacted, Station Master in rear shall give a
Private Number. If the competent railway servant is sent, Station Master in rear shallgive a Caution Order permitting pushing back of the train. He shall also intimate the Station Master at the other end about the occurrence.
5. before authorising the movement, the SM shall ensure that the LC gates, if any, are closed against road traffic. The Loco Pilot, after obtaining permission form the Station Master
in rear as above, shall follow the rules and proceeds.

Source : G&SR Railway
Page#    1673 FAQs  <<prev  next>>

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