Forum Super Search
 ♦ 
×
HashTag:
Member:
Posting Date From:
Posting Date To:
Train Type:
Train:
Station:
ONLY with Pic/Vid:
Sort by: Date:     Word Count:     Popularity:     
Public:    Pvt: Monitor:    RailFan Club:    

Search
  Go  
Full Site Search
  Search  
 
Sat Jun 24, 2017 23:18:44 ISTHomeTrainsΣChainsAtlasPNRForumGalleryNewsFAQTripsLoginFeedback
Sat Jun 24, 2017 23:18:44 IST

Blog Entry# 2089110  
Posted: Dec 12 2016 (22:14)

44 Responses
Last Response: Dec 14 2016 (14:01)
  
★★★  Rail Fanning
0 Followers
4192 views
Dec 12 2016 (22:14)   DLWS/Diesel Locomotive Works Rly Siding Varanasi

بیپلوب کاگیونگ~   4722 blog posts   1685 correct pred (73% accurate)
Entry# 2089110            Tags   Past Edits
IR Proposed Dual Mode Loco WDAP5
(Electric 4500 Hp + Diesel 4500 Hp)
#Expected_Rollout = December 2017
What's Your View

17 posts - Mon Dec 12, 2016

22 posts - Tue Dec 13, 2016

  
1526 views
Dec 14 2016 (13:38)
Tabbys star and the Alien outpost~   2565 blog posts
Re# 2089110-40            Tags   Past Edits
Both diesel engine and the electric traction cannot be used at the same time. Only one of each can be used. So, the maximum output will be 4500HP only.

  
1533 views
Dec 14 2016 (13:43)
بیپلوب کاگیونگ~   4722 blog posts   1685 correct pred (73% accurate)
Re# 2089110-41            Tags   Past Edits
Diesel Locomotive can't be Off like Present Diesel locos but Electric One can be Easily Switch Off or on.
As we know Diesel Engine continuously runs
When It Will run in Electric Section Its Power will be
4500 Hp + 4500 Hp Becomes = 9000 Hp Loco More Powerful than WDG5's 5500 Hp n WAP7's 6000 Hp n WAG9's 6850 Hp Most
...
more...
Powerful Loco of IR
Ya In Diesel Lines It will act as Simple WDP4D

  
1315 views
Dec 14 2016 (13:46)
بیپلوب کاگیونگ~   4722 blog posts   1685 correct pred (73% accurate)
Re# 2089110-42            Tags   Past Edits
When Going in Diesel Section it will get Electric Engine switch off
And No Bulkier it is Same like EMD WDP4D
Its Only 20-21 Tonnes n Electric one and Same as EMD King WDP4D

  
1285 views
Dec 14 2016 (13:53)
بیپلوب کاگیونگ~   4722 blog posts   1685 correct pred (73% accurate)
Re# 2089110-43            Tags   Past Edits
Its Much lighter than WDG5

  
1507 views
Dec 14 2016 (14:01)
Tabbys star and the Alien outpost~   2565 blog posts
Re# 2089110-44            Tags   Past Edits
The 4500HP rating comes from the motor ratings. So a Co-Co loco of 4500HP will have something like 6 750HP traction motors ( Not exact numbers, just an example, some part of the power is required for on board stuff, reducing the power available to the motors), giving it a total of 4500HP. This amount will be the same no matter how much power is supplied to it. ( It is possible to get higher power rating of about 300-500HP higher, but only for a short period). So even if the diesel engine and OHE work in parallel, the motors cannot supply more than 4500HP of power. And in the dual mode loco, there will only be 6 traction motors that will be powering the axles.
...
more...
Besides, connecting 2 AC power sources ( in this case, one OHE and one diesel generator) is a very tricky task. Even the slightest difference in the voltage, frequency or phase, can cause a great power imbalance on the power grid and can cause very messy problems. And moreover, the control systems for both are different and using both will be quite unstable. Basically, it's a very, very tedious problem to solve, and can make the locomotive extremely expensive.
These locomotives are designed for a very specific market. Their usage pattern will be like this. At the point of traction change from diesel to electric, the diesel engine will be powered down and the control will be shifted to the Pantograph and electric loco portion. The diesel engine may be switched off completely, or may be running in idle mode, disconnected from the rest of the loco. At a point of traction change from diesel to electric, the control will be handed over to the diesel portion again and the OHE power block will be isolated. This will require a reasonably long halt, but it will be less time consuming than changing a loco.
These will be only used for trains that run for most part of their journey on one traction and have to do a small part of their journey on another. They are not designed for being used as regular locos like the WAP or WAG series.

ARP (Advanced Reservation Period) Calculator

Reservations Open Today @ 8am for:
Trains with ARP 10 Dep on: Tue Jul 4
Trains with ARP 15 Dep on: Sun Jul 9
Trains with ARP 30 Dep on: Mon Jul 24
Trains with ARP 120 Dep on: Sun Oct 22

  
  

Rail News

New Trains

Site Announcements

  • Entry# 2175399
    Feb 23 2017 (01:22PM)


    There has recently been a lot of frustration among RFs when their Station Pics, Loco Pics, Train Pics get rejected because the "number is not showing", "shed is not visible", the loco/train is at a distance, Train Board is too small, "better pic available", etc. . To address this issue, effective tomorrow, ALL...
  • Entry# 2165159
    Feb 15 2017 (09:53AM)


    A minor update, but may impact many members: Hereafter, FMs will be able to delete invalid Red Flags on Imaginary trains. Red Flags can be removed by FMs, only against specific complaints filed against the blog. This does not give all members the right to complain against EVERY single red flag they...
  • Entry# 2155798
    Feb 08 2017 (11:40AM)


    -@all members: As of recently, there has been a trend whereby minor name updates of Trains/Stations - whether such and such regional name should be there or not, whether the train should be called "Abc Express" or "Abc Superfast Express", etc. are threatening to take over the majority of Timeline entries. Also,...
  • Entry# 2147631
    Feb 01 2017 (11:05AM)


    A new experimental feature is being introduced called BotD - "Blog of the Day". The rules are: . 1. Replies are not eligible - only the Top Blog. 2. ONLY Blogs posted today (the day of the vote) are eligible. 3. Every member has ONE vote. In the course of the day, you may keep...
  • Entry# 2136570
    Jan 23 2017 (12:25AM)


    Several new features have been introduced recently to the Forum, and we are forever striving to make Member experience here more productive and satisfying. With the recent introduction and success of the new FM System, it has been observed that small groups of highly involved and enthusiastic members are far more...
  • Entry# 2134907
    Jan 21 2017 (02:46PM)


    It has been over 2 weeks since the appointment of the current batch of FMs and 750 Complaints have been handled so far. It gives me immense pleasure in congratulating them for running the team diligently, professionally, competently and above all, without a shred of controversy or bias. The FM position...
Scroll to Top
Scroll to Bottom


Go to Mobile site
Disclaimer: This website has NO affiliation with the Government-run site of Indian Railways. This site does NOT claim 100% accuracy of fast-changing Rail Information. YOU are responsible for independently confirming the validity of information through other sources.