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12988 - बारह नौ सौ अठासी , इसके नखरे हैं नवाबी ! - Keshav Saxena

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Blog Entry# 4298709
Posted: Apr 22 2019 (20:41)

5 Responses
Last Response: Apr 28 2019 (21:12)
3 Followers
Rail Fanning
13039 views
22

★★★
Apr 22 2019 (20:41)   12338/Shantiniketan Express | HWH/Howrah Junction (23 PFs) | HWH/WAP-7(I)/37034
SOUTHEASTERNRAILWAYWAP7
SOUTHEASTERNRAILWAYWAP7   193 blog posts
Entry# 4298709            Tags   Past Edits
After a long time of 3 years today get the scope of brief chat with the Loco Pilot of KNORS BRAKING & PTDC EQUIPPED WAP-7i 37034 of HWH Shed which is the today's Loco Link of Bolpur Howrah Santiniketan Exp
The Loco Pilot is from Bihar and a very good person.....
We discussed about the KNORS BRAKING SYSTEM used in P-7 Locomotives recently the LP Sir told me that KNORS BRAKING SYSTEM is not so good rather E-70 braking equipped P-7 which is used in all
...
more...
premium trains like Rajdhani Shatabdi etc is the best braking system of P-7 rather KNORS BRAKING SYSTEM
The LP also told me that PTDC which is presently used in all 3 Phase Electric Locomotives is very effective according to him Railways should focus on increasing the TRACTIVE EFFORT of the Locomotive as because he opines that WAP-4 still the best for its TRACTIVE EFFORT though its Horse Power is less than other electric locomotives.
He also told me that the idea of 9000 HP P-7 is not required rather much horse power is required for Goods Train so 9000 HP WAG-9 is very effective....
I have also cleared the concept of LSDJ(High Voltage Circuit Braker) from the LP Sir he asked me "Do you know how to start & stop P-7 ?"
I replied both the procedure to him in detail ....... then he inquired about my age & work and repeatedly told me to join Railways but dear friends already I am 35 ++ in this age it is not possible but he insisted & told me you have a very good knowledge join Railways
We had a very friendly chat for about 20 minutes....
However the rake of Santiniketan also departed HWH as Coald Field then we ended our chat and the LP Sir took the DLW made HWH P-7i 37034 towards HWH ELS.
The Loco has larger TOUCH SCREEN BASED DRIVER DISPLAY UNIT which is in "SIMULATION MODE" at that time as because in "SIMULATION MODE" you have to Drive any 3 Phase Electric Locomotive the other Switches like BLDJ,BLCP BPCS are also very smart looking ......
The DLW made P-7 Locos are very classy ..... the DRIVERS PANEL is also very Smart looking
Some pics of 37034 is captured which is attached in this BLOG
NB: The LP Sir told me that the Grand Chord Route which is blocked for recent POORVA EXP Derailment near CNB (Kanpur Central) is resumed .......... please check this info from sources dear friends
*****************************************************************
Sharing the important Cab equipments of a KNOR Brake 3 Phase Loco
PTDC : Pneumatic Time
Dependent Control
A-9 : Auto Brake valve handle
SA-9 :Direct Brake valve handle
Locking key
Mode Switch
The Images of each of the above equipment is attached......
PDF LINK : click here

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1

Apr 22 2019 (21:50)
mehmoodsayed~
mehmoodsayed~   855 blog posts
Re# 4298709-1              
1 compliments
Its my pleasure
Thank you so much sir. u cleared my few doubts by asking questions to LP sir which was running in my mind. Especially the 9000HP WAP7 Loco.
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Apr 23 2019 (00:55)
SOUTHEASTERNRAILWAYWAP7
SOUTHEASTERNRAILWAYWAP7   193 blog posts
Re# 4298709-2               Past Edits
I missed a point that today the LP Sir of HWH WAP-7i 37034 told me that GTO based Locos are better than IGBT based Locos. However I have given the following links to clear the difference among GTO IGBT & IGCT
click here
Also the list of Failure word documents of ABB BHEL & BTIL made IGBT Locos are annexed here (From CLW Official Website)
*****
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more...
Software Issues
****** Hardware Issues
****** Other Issues
Schematic Diagrams of
GTO ------ Gate Turn-Off Thyristor
IGBT -------- Insulated Gate Bipolar Transistor
are attached

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Apr 25 2019 (01:56)
TheMadrasMail~
TheMadrasMail~   6349 blog posts
Re# 4298709-3              
Very informative.
Was surprised at this - "Railways should focus on increasing the TRACTIVE EFFORT of the Locomotive as because he opines that WAP-4 still the best for its TRACTIVE EFFORT"
The WAP4 has lesser tractive effort than the WAP7 across the board. Even compared to the WAP5, the tractive effort is only higher for the WAP4 only at lower speeds and drops off well at moderate speeds.
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Apr 28 2019 (20:35)
Ben_Kenobi~
Ben_Kenobi~   4222 blog posts
Re# 4298709-4               Past Edits
LSDJ would be lamp for indicating DJ has operated, not HV CB itself.
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Apr 28 2019 (21:12)
ELSG^~
ELSG^~   58803 blog posts
Re# 4298709-5              
1 compliments
DLW made P-7 are very good Locos
These infos are really important.
As there are some rumors that P7 assembled in DLW are not that good and classy.
And is unsuccessful
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