Poorva Express: हुगली सी बहती तेरी चाल है पूर्वा तू बेमिसाल है - Keshav Singh

Oct 15 2014 (4:59PM)
"Pictures List of Important Accessories of an LHB Stainless Steel Coach with detail marking of each accessories"
These coaches important accessories are currently as made follows: by Indian Railways un their following three Coach Factories namely:
1 ICF(Perambur),RCF(Raeberilley) 60 & KVA RCF(Kapurthala) TRANSFORMER WITH EPOXY ENCAPSULATION
2 AC PACKAGE MICROPROCESSOR CONTROLLER
3 BATTERY MODULE DETAILS
4 EVAPORATOR MOTOR
5 FEEDER JUNCTION BOX
6 IVC PLUG
7 IVC SOCKET WITH RATCHET ARRANGEMENT
8 PUMP AND ACCESSORIES WITH PUMP BOX
9 PUMP CONTROLLER
10 ROOF MOUNTED AC PACKAGE UNIT
11 SWITCHBOARD CABINET
12 SWITCHBOARD WITH OPEN DOORS
13 VIEW WITH SIDE COVER OPEN
14 WHEEL SET EARTHING EQUIPMENT
15 WATER PUMP WITH CONTROLLER
16 400 AMPS INTERVEHICLE COUPLER
Pics of each of the 16 accessories are attached below
These coaches are currently made by Indian Railways under their following three Coach Factories namely:
A ICF(Perambur)
B RCF(Raeberilley)
C RCF(Kapurthala)


Oct 15 2014 (4:51PM)


Oct 15 2014 (4:43PM)
For "VERY all CRUCIAL Rail INFO Fans: FOR THE KNOWLEDGE OF ALL RAIL FANS"
"Pictures of Important Accessories of an LHB Stainless Steel Coach" Coach with detail marking of each accessories"
These coaches are currently made by Indian Railways un their following three Coach Factories namely:
ICF(Perambur),RCF(Raeberilley) & RCF(Kapurthala)
Views and Opinions are Welcome

Oct 15 2014 (4:37PM)
"Pictures of Important Accessories of an LHB Stainless Steel Coach"

Oct 15 2014 (4:37PM)
Important For Info rail Rail fans Fans: regarding "Brake System" of 3 phase AC Electric Loco
"Pictures of Important Accessories of an LHB Stainless Steel Coach"
Goal of This Study:
The goal of the project is to develop a high-speed train system(LHB Coaches) and high speed locos(WAP 7,WAG9, WAP 5 etc) capable of reaching the maximum speed and to secure its key technologies, one of which is the braking technology
A special report on "Failure analysis in locomotive Bogie Brake-Hanger"
By
NAVNEET SINGH, *Department of Mechanical Engineering, GHRCE Nagpur, INDIA
Prof
A
K
MAHALLE ** Associate Professor, M
E
, GHRCE Nagpur, INDIA
*Corresponding Author: e-mail: nvnt
sngh@rediffmail
com, Tel +91-9096170923
Body of the Report:
Abstract
Breakage of brake riggings in WAP7 locomotives has been a matter of concern since 2004, almost after its commencement of manufacturing, which is having same bogie design as that in WAG9 locomotives
Both of these bogies are having TBU/PBU assembly for brakes, but breakage of brake hangers in WAG9 locomotives are unheard off
Both the inner as well as outer hangers are breaking
However, the cases of breakage of inner hangers towards bogie frame are much more with 80% of the total failures
This paper deliberates to understand the various failures in locomotive Bogie Brake-Hanger and on root cause analysis for the failure of Brake hanger
In this paper we analyze the characteristics of brake hanger using FEA software
Introduction
Regardless of the remarkable increase in the train speed, trains need to be stopped safely within a
limited braking distance without causing any discomfort to the passengers
Currently, most trains are run by electrical power and have a combined electrical and mechanical
(friction) braking system
Breakage of brake riggings in WAP7 locomotives has been a matter of concern since
2004, almost after its commencement of manufacturing, which is having same bogie design as that in WAG9
locomotives
Both of these bogies are having TBU/PBU assembly for brakes, but breakage of brake hangers in WAG9 locomotives are unheard off
Both the inner as well as outer hangers are breaking
However, the cases of breakage of inner hangers towards bogie frame are much more which 80% of the total failures
1
WAG-7 Type Electric Locomotives
WAG-7 is an electric locomotive engine of Indian railways used to haul specially goods train and is maintained by Ajani Loco shed, Nagpur India
The Loco has six axles in two sets of three frontal and rear wheels
WAG-7 is the name of a type of electric locomotive shown in figure 1 used in India
Homed mainly At Gomoh, Ajni, Lallaguda, Tughlakabad and Bhilai
It is very similar to the class WAP-9; the only difference being the gear ratio which makes it suitable for heavy weight Operations
The technical specifications of WAP-9 type electric locomotive are mentioned in table 1
Table 1:
Technical Specifications of Electric WAP-9
Manufacturers ABB, CLW
Traction Motors
ABB's 6FRA 6068 (850kW, 2180V, 1283 rpm, 270/310A
Weight 2100kg) Axle-hung, nose-suspended
Gear Ratio 77:15
Transformer ABB's LOT 6500, 4x1450kVA
Hauling capacity 4250t
Wheel base 15700mm
Brake Hanger of Electric Locomotive WAG-7 and WAG-9
During a brake application, the brake beam on either side of a wheel set are moved by the brake cylinder through the brake rigging so that the brake block holders are pulled towards the wheel treads
The brake beam however only controls the movement of brake blocks in horizontal plane and provides no vertical restraint
The upper part of the brake hangers are connected brackets on bogie frame by the upper brake hanger-pins
Table 2: Technical specifications of Brake hanger
PART NAME QTY/LOCO MATERIAL
BRAKE LEVER 6 STEEL Fe 540B, I S : 8500
PLATE 6 STEEL Fe 540B, I S : 8500
BUSH(PRESS FIT) 6 STEEL Cr 45C8, I S : 5517
BUSH(PRESS FIT) 6 STEEL Cr 45C8, I S : 5517
2
Observations
The problem identified in the assembly of brake-hanger of WAG-7 railway engine is that the brake-hanger fails
under fatigue
Following are the observations on failed brake-hanger
1
The brake-hanger usually fails during running condition after certain period
2
100% breakage at the top of the hanger plate
3
The initiation of crack begins near the bush welding which progresses and breaks the hanger plate into
two pieces
4
Both the inner and outer hangers are breaking but the breakage of inner hanger towards bogie frame is
much more with 80% of total failure
5
Failures in PBU (weight of 150 kg) are more compared to TBU (weight of 130 kg)
(It should be noted that, the material report confirms the brake-hanger material as per requirements
)
Navneet Singh et al
/ International Journal of Engineering Science and Technology (IJEST)
YEAR SHED
GZW GMO TOTAL FAILURES
06-07 06 15 21
07-08 26 15 41
08-09 64 16 80
09-10 26 07 33
Attachment
1 IR Logo celebrating 150 Years
2 WAG 9 Carrying Exp
3 Cabin of WAP 7
Views and opinions are welcome


Oct 15 2014 (12:47AM)
Important Info for all rail fans regarding "Brake System" of 3 phase AC Electric Loco
Goal of This Study:
The goal of the project is to develop a high-speed train system(LHB Coaches) and high speed locos(WAP 7,WAG9, WAP 5 etc) capable of reaching the maximum speed and to secure its key technologies, one of which is the braking technology
Goal Attachment of This Study:
The 1 goal IR of Logo the celebrating project 150 is Years to develop a high-speed train system(LHB Coaches) and high speed locos(WAP 7,WAG9, WAP 5 etc) capable of reaching the maximum speed and to secure its key technologies, one of which is the braking technology
2 WAG 9 Carrying Exp
3 Cabin of WAP 7