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Page#    1656 FAQs  next>>
Yesterday (16:08)

Entry# 2275     
What is the mechanism that stops the train when pulling the chain?

General Travel
Yesterday (15:05)
Blog Post# 4719227-0     
tanu1995^~   Added by: tanu1995^~  Yesterday (16:08)
What is the mechanism that stops the train when pulling the chain?
When you look in between two coaches you will see the coaches are coupled with the coupler, and there are two black pipes below the coupler. It continues from engine to rear of the train. One of those is Feed pipe, the other is Break pipe. Why? The feed pipe is connected with the engine's MR reservoir which maintains 5kg per sq cm air pressure from engine to rear to keep the breaks of coaches in release condition. The other the break pipe which exhaust the air pressure either it is applied by the driver or a passenger pulls the alarm chain. As soon as any of the one happens
break pipe pressure drops below 5kg per sq cm and break applies. If it is done by the driver instantly he will create 5kg pressure in feed pipe and feed pipe will feed the break pipe as much air pressure exhausted by the driver, and break will release, train will move freely. You must have experienced that during your journey, sometimes it is slow, and again normal speed.

Now, when someone pulls the alarm chain what happens. At the end of every coaches on top you will see a mechanism. Actually that is a valve, known as Clappet Valve. It is connected with the brake pipe. When someone pulls the chain this velvet opens and air pressure exhausts from break pipe. Since it is done from a coach, driver of the train can not maintain break pipe pressure required 5kg per sq cm from engine. So how to set. When the chain is pulled, Clappet Valve opens air pressure releases through the valve with a big hissssing sound. Until the valve is closed the break pipe pressure will not built up to the required and train will not move. Look at the valve, you will see a steel wire is hanging with a wooden handle. Staff of the train will come , will pull the steel wire and the valve will be closed. Hissing sound will stop. Within minutes feed pipe, and break pipe will maintain required air pressure, Breaks will be released and enjoy your onward journey.

Sep 17 (21:54)
Train Connections/Directions

Entry# 2274     
What is the difference between Railway Track and Railway Line?

General Travel
Sep 17 (09:49)
Blog Post# 4718117-0     
tanu1995^~   Added by: tanu1995^~  Sep 17 (21:54)
What is the difference between Railway Track and Railway Line?

Actually in normal view there is no major difference but in inner means there is difference. I am try to explain. the Word Line meaning in dictionary that “ a row of closely spaced dots will look a continuous line” . A line can't take you a destination. And now track means in dictionary “ A path” . A path give you a destination. So in my think as railway line taken to a destination, railway line is treated as railway
track. Kindly correct me if I am wrong.
Sep 17 (21:23)

Entry# 2273     
What is the meaning of the WAP -4 locomotive used in Indian Railways ?

General Travel
Sep 17 (12:26)
Blog Post# 4718299-0     
tanu1995^~   Added by: tanu1995^~  Sep 17 (21:23)
What is the meaning of the WAP-4 type locomotive used in Indian Railways ?

WAP - 4 is a common used in India.

The locomotive was developed after a previous class
was found inadequate to haul the longer, heavier express trains (24-26 coaches) that were becoming the mainstay of the Indian Railways network. It was introduced in 1994, with a similar bodyshell to the WAP-1 class, but with Hitachi traction motors. Electricals are traditional DC loco type tap changers, driving six arranged in Co-Co fashion. This locomotive has proved to be highly successful, with over 750 units in service. Newer examples have been fitted with microprocessor-controlled diagnostics, static converter units (instead of arnos) and roof-mounted dynamic (rheostatic) brakes. The locomotive can be seen in service across the electrified network of Indian Railways and is homed at 14 sheds (depots).

The last locomotive produced by the Chittaranjan Locomotive Works (CLW) was numbered 25051 in December 2015 and production of this locomotive has been stopped.


The loco has a streamlined twin cab carbody design, with top-mounted headlamps. The first 150 or so units had the headlamp mounted at waist level, with the lights being mounted in a protruding nacelle. Some earlier locos, especially from the Erode loco shed have the headlamps placed on the top. Later on the headlamps were placed in a recessed nacelle, and from road #22579 onward, the headlamps were moved to the top. Also they have digital notch repeaters.

Newer locos also feature larger windshields, more spacious driver cabin with bucket seats and ergonomic controls. The control panel also features a mix of digital and analog displays in newer units (all analog display in older versions).

Original units were weighed 120 tonnes, which was brought down to 112 tonnes through the usage of lighter material.

Some of the WAP-1 and WAP-3 and all the WAP-6 units were rebuilt to WAP-4 specifications after replacing the bogies & electricals.

It has different underframe for handling larger buffing loads. Some units are fitted with speed recorders and some changes to control electronics. Some units also have data recordersfor energy consumption. Some are even fitted with windshield washers and rearview mirrors. Few were provided with signalling lamps which were subsequently removed.

Technical variants include WAP-4E which are probably fitted with electronic sensors for sensing pipe pressure loss.

The Hitachi traction motors are the ones used on freight engines. It was a challenge to put these in a passenger engine due to weight constraints. So the transformer is aluminum foil-wound and aluminum chequered plates are used for reducing the weight.

415 volts, three-phase, 50 Hz power supply is used to drive various auxiliary motors like (1) Traction motor blowers (2) Transformer radiater blower (3) Transformer oil pump (4) Smoothing Reactor Blowers (5) Silicon Rectifier Blowers (6) Battery charger. The three-phase, 415 volt supply is obtained from the single phase supply by Arno converter or static converter.

Indian railways has installed microprocessor based fault diagnostic system and Vigilance Control Device for the enhancement of safety and reliability of electric Locomotives. Some of the newly manufactured WAP-4 locomotives also have air conditioning system for the loco pilot.
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.
Page#    1656 FAQs  next>>

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