Announcement

**psr** · 04-02-2013, 09:13 PM

More and more Diesel Electric Multiple Units(DEMU) are being employed in India to take care of the increasing demand for Fast trains between cities.......

ICF had rolled out on 1st April 2013 a totally updated DEMU , with STAINLESS STEEL COACHES.....

Salient Features are...

1. The First Coach is also the Diesel electric Prime power.
2. The DEMU is Powered by a 1,600 HP diesel power unit
3. The Drive is 3 phase AC..AC..ie., the Diesel power unit generates 3 Phase AC which is used to drive 3 Phase AC motors..
4. The Control is by 32 bit controller as used in WDP 4..Complete Control is DIGITAL.
5. The TCC (Traction Control Circuit) unit employs IGBT technology for driving the Motors...same as Indigenously developed IGBT unit in WDP 4..This totally reduces Heat in driver circuitry and is > 80 % efficient.
6. Control unit heads up display/Control Stand same as in WDP 4, with Digital display, and program.
7. The Coaches are built completely from Stainless Steel...All Screws and Rivets heads etc., are chamfered, and are covered...so passengers will not get injured or clothing will get caught and torn on them.
8. The Train Is Fitted with GPS, hence can be traced to it's position on track.....Equipping all of these trains ,with GPS allows for each train ,and controllers to know precisely where the train is on the track...
9. Advanced Interface for Remote sensing and trouble shooting can be done through GPS/GPRS/CDMA...
10. The train can do a top speed of 105 kmph...with 10 coaches....
11. The Normal seating capacity is 756 passengers in 10 coaches...and approx., 2,000+ passengers standing...
12. The Nose Cone of the DEMU is also made of pressed SS , giving it better strength and better protection to Loco Pilots.

Unfortunately this train is not going to see service in SR but most probably SCR..

**psr** · 04-05-2013, 09:52 AM

Achievements Of RDSO of Indian Railways

Important Achievement of Motive Power Directorate during Last Five Years

SN	Financial Year	Broad Area of Achievement	Title of Achievement	Description of Achievement	Likely Benefits	Current Status of Implementation
1.	2007-08	Crew comfort	Development of Cab Air Conditioning System for Diesel Electric Locos	Cab air conditioning system includes one AC unit in the driver’s cab with input power supplied by an auxiliary source. An inverter of 5 KVA capacity is therefore required to convert 72V DC to 230V, 50 Hz, single-phase supply suitable for input to these motors.	The locomotive cab air conditioner assembly shall be used to provide interior cab temperatures in a comfortable range throughout the year.	Installation of Cab ACs have started at DLW.
2.	2007-08	Economy	Conversion of cast HTSC truck frame of HHP (EMD) locomotive in to fabricated design	Design of fabricated version with high strength rolled plate	Cost reduction	Running in service since December 2009
3.	2007-08	Export	Design & develop-ment of 1400hp/ 2300hp Cape gauge & meter gauge loco-motive bogie for export to Senegal/ Mali/Sudan	Fabricated box section three axle bogie design with Tetramount suspension	Exposure in export design	Locomotive exported to relevant countries
4.	2007-08	Export	Design of meter gauge 14t axle load 1-Co-Co-1 four axle bogie for Tanzania	First time bogie design for meter gauge with four axle	Exposure in export design	Design ready on drawing board, not implemented
5.	2007-08	Export	Design of Co-Co trimount fabricated bogie for cape gauge under WDM7 locomotive for export	Conversion of old WDM7 locomotive for cape gauge application	Exposure in export design and asset utilization	Locomotive exported from GOC
6.	2007-08	Freight Throughput	Development of WDM3F 3600 HP locomotive with GE Electrics.	GE electrics with enhanced capacity	Increased horse power.	Manufactured
7.	2007-08	Indigenisation	Indigenous development of water cooled air compressor for EMD locomotives	Specification of water cooled air compressor for WDG4/WDP4 diesel locomotives.	To save foreign exchange by 50 % or more	(i) As improvement in system reliability, modified with gear pump and GD type valves & 3 nos. compressor are under trial. (ii) One more vendor is in under process.
8.	2007-08	Passenger amenities	Development of 3-phase 1600 HP AC-AC DEMU	Design and development of 3 phase AC/AC DEMU has been undertaken by RDSO.	Less maintenance of DEMU is required.	Prototype likely to roll out by October’12.
9.	2007-08	Reliability	Development of traction alternator with Silicone-Rubber based insulation for EMD locomotives	EMD make alternator has been indigenized by adopting the original insulation scheme.	Has a number of advantages, such as reduced temperature rise, mechanical durability etc.,	M/s BHEL and CGL have developed this alternator with the silicon insulation scheme.
10.	2007-08	Reliability	Design and development of Advance trimount high speed (ATHS) bogie frame for WDM3A & WDS6Adt locomotives	The bogie has been designed with advanced suspension elements	Ease of maintenance and cost reduction	Running in service since 2011
11.	2007-08	Reliability	Development of Fully Machined Ductile Iron, Cast Engine Blocks along with Main Bearing Caps for ALCO 251 (16 cylinder) Diesel Engines	Specification for procurement of fully machined ductile iron, cast engine blocks along with main bearing caps for ALCo 251 diesel engines had been framed. Accordingly in a global tender, the work was awarded to M/s Sichuan Yibin Push Group Co. Ltd, China for 50 nos.	Strengthened engine block for increased horse power of 3300 and above so as to avoid the problem of bore misalignment, distortion, shrinkage and thermal loading.	RDSO has cleared Cast engine block drawings submitted by M/s Sichuan Yibin Push Group China and given go ahead for carrying out FEA.
12.	2007-08	Reliability	Remote Monitoring and Management of Locomotive and Trains (REMMLOT)	Development of remote monitoring technology for diesel locomotives.This system provides almost real-time information about the locomotive location and its operational and health status.	Optimization of the asset. Platform for condition monitoring and predictive maintenance.	Approximately 400 locomotives equipped. Fitment on another 1200 locomotives sanctioned in RSP.
13.	2007-08	Safety	Development of TFT LCD Display for Driver’s Cab [Called “Dials” - Digital into Analogue LCD- Based System] for Diesel Electric Locomotives		Improvement in operational safety.	Approximately 250 locomotives equipped.
14.	2007-08	Safety	Design optimisation to develop light weight HTSC fabricated bogie for twin cab passenger version of HHP locomotive‘	Light weight to reduce the axle load	Cabin crew Safety	Running in service since Oct’2010
15.	2007-08	Safety	Development of WDP4B 4500 HP locomotive in place of WDP4 locomotive.	Improved driver visibility at long hood direction with wider cab	Improved Visibility, Increased Tractive effort.	Switched over this design from 2009
16.	2008-09	Economy	Development of low mean pore size fuel filters to improve the reliability and life of fuel injection equipment as well as the life of the filter itself on ALCo locomotives.	Mean pore size reduced to 10-16 microns for Primary and 6-10 microns for Secondary filters respectively. Life of the filter enhanced to 4 months to coincide with the existing quarterly schedule	Improvement in reliability of fuel injection equipment and periodicity of replacement has been doubled.	Railways have started using low mean pore size fuel filters
17.	2008-09	Economy	Energy efficient FTTM Blower	The AC-DC ALCo locomotives have rectifier that is either cooled by air of plenum chamber in view of the alternator mounted rectifiers, the air requirement from the blowers has reduced and the blowers have been redesigned for 9500 cfm in place of existing 12000 cfm.	In these designs reduction in the blower capacity has lead to significant reduction in its power consumption.	RDSO has revised the specification
18.	2008-09	Freight Throughput	Design and development of higher capacity radiator fan for 4500 hp EMD locomotives following successful benchmarking of indigenous fans	The EMD locomotives have been upgraded to 4500 GHP (CV) from the existing 4000 GHP (CV) This increase in power results in increased thermal loading of the engine. It was decided to increase the sweep of the fans from 52” to 54” to increase the air flow capacity,	The increased air supply shall enable increased HP rating of 4500.	Complete switch over to the 54” design has been made.
19.	2008-09	Indigenisation	Indigenous development of complete 3-Phase Electrics and its Controls (except TMs) for WDG Locomotives	The complete traction control system of EMD locomotive comprising TCC ECC 1, 2, 3 and the LCC has been indigenized successfully.	Addition of more sources and reduction in cost.	As per RDSO’s specification, development and bench testing of IGBT-based TCC had been completed
20.	2008-09	Passenger amenities	BG DEMU for J&K		DEMU (J&K) has provided an economic, efficient and reliable supplement to the existing means of transportation to the people of Kashmir Valley.
21.	2008-09	Reliability	Design & development of High adhesion high speed (HAHS) equaliser less bogie for WDM3D locomotive	Reduction of unsprung mass of the bogie by elimination of compensating and equaliser linkage	Ease of maintenance	Running in service since 2009
22.	2008-09	Reliability	Design of new, reliable and maintenance friendly bogie for WDP1 locomotive	Bogie has been designed with provision of rubber spring in secondary stage and wing type axle box	Rehabilitation of old WDP1 locomotives	One locomotive has been modified and running since June’10
23.	2008-09	Reliability	Upgradation of specification of IGBT-based AC-AC system for 4500 hp locomotive	Specification for procurement of complete electrics including TCC, ECC and LCC has been upgraded by including DIALS (display of loco parameters and LCD/ TFT monitor) and REMMLOT (remote monitoring of locos).	State of the Art features for improved driving and reliability.	Specification issued.
24.	2008-09	Safety	3-coach HS SPART	On the recommendation of high level committee, 3-Coach High speed Self-propelled Accident Relief Train has been designed as per RDSO’s spec with the following features. Maximum operating speed: 132 km/h under slung power pack with hydrodynamic transmission Aerodynamic driver’s cab Equipped with relief & rescue devices.	Enhanced speed will help in quicker start of relief and rescue operations in Golden Hour.
25.	2009-10	Economy	Development of a specification for more cost effective Thermal Insulation Kit for Exhaust manifold.	Specification issued to all railways to use the new design which is costing approx. Rs. 45000 against Rs. 120000 per loco of old design.	Price of this product has reduced drastically.	IR is using this product as per specification.
26.	2009-10	Export	Design of 19.5t Flexi float Standard gauge bogie for export to Syria	Design of three axle bogie for 1435mm gauge with flexi float suspension upto 120kmph speed	Exposure in export design	Design ready on drawing board, not implemented
27.	2009-10	Export	Design of 16.5t axle load Co-Co bogie for Holcim locomotive for export to Sri Lanka	Design of Co-Co bogie with 10’6” (3200mm) wheel base with trimount single stage suspension	Exposure in export design	Design ready on drawing board, not implemented
28.	2009-10	Indigenisation	Design and development of Indigenous wheel for WDG4 loco	Indigenous development of wheel for HHP locomotive	Easy availability of wheel discs
29.	2009-10	Passenger amenities	Design of EMD family WDP4 variant locomotive with Hotel Load capability	Indian Railway has decided to eliminate power car from Rajdhani / Shatabdi rakes for releasing space, to increase more revenue-earning coach by providing hotel load facility in the locomotives, for supplying hotel load to train.	Reduction in number of power cars would result in increased passenger throughput.	The first locomotive has recently been deployed in commercial trials in passenger train.
30.	2009-10	Safety	Development of EP Assist Brake System	Development of EP Assist Brake System PO was placed by RDSO on 12.10.10.	Reduce the EBD & coupler forces	Prototype inspection was completed. Material is expected to come on Oct-12.
31.	2009-10	Safety	Development of 4500 HP dual cab WDP4D loco.	Provision of cab at both end.	Crew visibility improved In the both direction.	3 Locomotives have been manufactured and are successfully in the service.
32.	2010-11	Export	2300 HP Diesel loco for Sri Lanka Railways.	Roof mounted DBR, stainless steel superstructure.	Stainless steel super-structure is corrosion resistant in coastal and tropical area	Manufactured and exported
33.	2010-11	Freight Throughput	Indigenous design development of WDG5 loco wheel.	Indigenous design of wheel for 23 t axle load,5500 HP WDG5 locomotive	Achieved the target time and timely manufacture of prototype locomotive	Wheel has been manufactured at DSP for prototype locomotive.
34.	2010-11	Passenger Amenities	NG Diesel Hydraulic Railbus (610 mm Gauge) for Neral - Matheran Section.	On the request of Central the specification has been finalised by RDSO in consultation with Central Railway alongwith the following important features. Bi-directional unit with driving cab at both end Self-propelled by 150hp diesel engine Hydrodynamic transmission Max. Operating speed of 20 km/h Ergonomically designed driver’s cab & seat	Single unit, light weight, low initial cost, no need for reversal, low maintenance cost etc.	Final specification has been sent to Central Railway on dated 14.6.2011.
35.	2010-11	Safety	Design of compact version of wheel set trolley to handle the wheel axle lock situation	Easy to handle and assembly at site	Fast clearance of blocked section due to loco failure	Trolleys are available with different sheds
36.	2011-12	Freight Throughput	Design & development of 5500 HP WDG5 Diesel locomotive	20 cylinder engine, unitized E locker, radial DBR ect.	High horse power, higher T.E	Loco is ready for oscillation trial
37.	2011-12	Green Technology	Development of Specification for procurement of New Generation Power Pack keeping in mind state-of –the- art emission control and fuel injection system	Final specification for New Generation Power Pack sanctioned against PB item no 1037 of 2011-12 has been finalized and a copy of the same sent to Rly Board for necessary action.	To achieve higher horse power i.e in the range of 3300 HP with low emission and high fuel efficiency.	Tender for procurement of New Generation Power Pack has been floated by DMW/PTA.
38.	2011-12	Passenger amenities	NG Diesel Hydraulic Railcar (762 mm Gauge) for Kalka-Shimla Section of N. Railway	As per directives of Railway board the specification has been finalised in consultation with N. Railway with the following important features. Bi-directional unit with driving cab at both end Self-propelled by 200hp diesel engine Max. Operating speed of 35 km/h Hydro-dynamic transmission Ergonomically designed driver’s cab & seat	Single unit, light weight, low initial cost, no need for reversal, low maintenance cost etc.	Specification has been sent to Railway Board vide letter on dated 29.6.2012.
39.	2011-12	Reliability	Modification of Exhaust Manifold from existing Three Entry to Modified Single Entry design for ALCO locos fitted with ABB TPR-61Turbocharger to improve its reliability	To overcome the problem, Single Entry exhaust manifold with improved features was developed and the same has been tested for its performance on the engine test bed as well as in the field and the results obtained were satisfactory. Therefore, it was decided to implement the single entry exhaust manifold.	Implementation of modified design will reduce pulsation on turbine blades, consequently reduction in turbine blade failures and also improve the reliability of turbochargers.	Implementation is under process in zonal railways.
40.	2011-12	Reliability	Introduction of hybrid bearings in AC crank case motor	Railways have reported bearing related problems on AC crank case motors. Use of hybrid bearing has been seen as a better solution than the existing bearing. In order to validate this concept, existing crankcase motors have been fitted with hybrid bearing and imported oil seal for evaluation of the performance.	Reliability of bearing is likely to increase.	Thirty-four nos. of locomotives fitted with such crank case motors have been put on trial at AMV and Gonda Diesel sheds. The same is under monitoring.
41.	2011-12	Reliability	Design of light weight maintenance friendly (LWMF) bogie for passenger version of HHP locomotive	Bogie has been designed with optimised weight achieved through FEM and low maintenance features have been adapted	Ease of maintenance	Under development process
42.	2011-12	Safety	Development of inter-operable Distributed Power Control System (DPCS) of diesel electric locomotives	RDSO has developed DPCS with the following important features i.e. interoperability across different makes of the DPCS made possible with requirement of common protocol for radio frequency communications, improved integration with locomotive systems, improved logic for loss of communications, improved software interlocks for increased safety and reduction of operator errors and analysis of failure modes effects and criticality analysis has been made mandatory at the design stage. Additional software interlocks have been provided for improved safety.	Increased through put

Source : WELCOME TO RDSO CMS Team Last Reviewed on: 07-12-2012

**psr** · 04-06-2013, 12:11 PM

Strain Gauge Squeeze testing of 1600 HP DEMU TC conducted at ICF/Design & Development by RDSO officials in January 2013....

I R has come of age and stress on safety & testing is given high priority...

**psr** · 04-06-2013, 12:21 PM

Mr.Sunny on 06-07-2012 post # 43 posted thus......and now IR is actually on the verge of implementing such a safety measure....

Originally posted by sunny_ View Post

PSR Sir, I saw in one holly movie that a train when broke a red signal, then its brakes were automatically pulled. Is this applicable here in Indian Railways as well?

Indian Rail expands train protection warning system

Southern Railway has planned to extend the train protection warning system (TPWS) currently installed in the Madras Beach-Central-Gummidipoondi EMU line to the 68km Beach-Arakkonam section. Under the project, 400 signals on the Beach-Arakkonam route will be linked up, all of which will interface with electronic beacons installed on the track. The TPWS system will be based on European rail traffic management system (ERTMS-Level 1) technology that will create a signalling loop to warn train drivers about the obstacles ahead, as well as control the speed in case of emergency. The system will also activate the train braking system automatically if the driver fails to notice the warning signs, and help regulate speed if a train is travelling too fast on the approach to certain speed restrictions. Southern Railway is currently testing the technology to make it suitable for Indian conditions and is planning to put in place a much better integrated signal system shortly. TPWS primarily offers additional safety in a fully automatic signal circuit and comprises on-board computer consoles or the Driver-Machine Interface. The system will be connected to wireless track-side balise devices that employ electromagnetic induction and can change the traffic light from green to red if a train is crossing a signal or is speeding. RITES has been asked to develop a more basic TPWS in order to expand the system to a wider level in the future and thus ensure safety of passengers.

**psr** · 04-06-2013, 01:50 PM

Indian Railways are using Cummins Diesel Railways Engines in their DEMU......Cummins have ratings from 55 HP all the way to 5,200 HP engines..they are fuel efficient, confirming to Euro Pollution control norms,and have lesser maintenance turn around times..... here is a sample list of some of their engine models and HP ratings.....

Ther Indian Railways have started using the Cummins diesel engine type No: KTA 50 L for the 1,400 HP and KTA 50 for the 1,600 HP.....
Their Letter of Indent and Letter for periodic Yearly maintenance shows the cost to be high...for instance the first year total strip down rebuild of the Engine costs approximately 60,00,000/- and the second year cost is 64,00,000/- all inclusive.....A New ALCO engine capable of 3,300 HP costs Rs.1 crore only..........In fact Cummins Advice for a total engine overhaul, is not based on Kilometers run, but based on How many Gallons/liters of Diesel the engine had used...

For Example the QSK model engines have Modular Common Rail Fuel System(MCRS) with Ferrous Cast Ductile Iron Pistons, and engine rebuild is adviced once in 1.5~2.5 Million Liters of Diesel consumption..

**harishkumarko** · 04-07-2013, 08:44 PM

Sir is it not a little tedious to keep track of the overall fuel consumption of each engine?

**psr** · 04-07-2013, 09:20 PM

Originally posted by harishkumarko View Post

Sir is it not a little tedious to keep track of the overall fuel consumption of each engine?

It is ofcourse tedious, but how else will you get real life figures which will make sense in the end ? and without realtime figures, any exercise in exploring new venues will actually become a non-factual expression, built on assumptions, which will have a hundred variables....in short unreliable, non-repetitive data . When ever any new thing is attempted, it is best to quantify or record all datas ,which will then become the Backbone of Future endeavors.
If you read the volumes of Data that IR RDSO generates, it will be mind boggling....but the thoroughness is perfect...
For instant for The Latest 1,600 HP DEMU they had already calculated the 1 st and 2 nd year engine tear down maintenance including the spares required and it's costing.....and the DEMU was released on just the 1st of April this year....RDSO is meticulous and complete in all it's endeavors ....If they had run the country INDIA would be ahead of other developed countries of the world...

**psr** · 04-07-2013, 10:23 PM

A view of WDP 4 D TFT console Display, called DIALS...Digital Into Analogue LCD Based System

**psr** · 04-09-2013, 09:22 PM

Indian Railways has started modernizing it's fleet of Locomotives, Wagons, and Coaches , with specific importance towards reliability and lesser down time...To this end they have started using Stainless Steel components and sub assemblies in a big way.......

Stainless steel Air Brake lines...

Stainless Steel Pantry car

LHB stainless steel Coach getting fabricated and the finished product...

Stainless steel Goods WAGON...

**dpak89** · 04-10-2013, 10:58 AM

That is a wonderful step!

I have got a basic question? What has the IR done to improve the sanitary conditions in the coaches?
Have they taken any step to prevent the access of restrooms when the train is in station ?

**psr** · 04-10-2013, 11:44 AM

Originally posted by dpak89 View Post

That is a wonderful step!

I have got a basic question? What has the IR done to improve the sanitary conditions in the coaches?
Have they taken any step to prevent the access of restrooms when the train is in station ?

Bio toilets in train, which does not dump human waste on the track had been designed and proven in trials...I had posted about it earlier ...Sadly the implementation is taking longer than expected time, and knowing IR maintenance, there is the grave possibility of the Toilet not getting cleaned at all and the passengers suffering due to this...
Here is a Pic., of a full SS Toilet at testing center...

**dpak89** · 04-10-2013, 12:34 PM

Err..May be i missed it

Thanks for the information though.

**psr** · 04-10-2013, 02:38 PM

Originally posted by dpak89 View Post

Err..May be i missed it

Thanks for the information though.

Page 21 and post 210...see who had asked the question

**dpak89** · 04-10-2013, 03:01 PM

Oh yes sir..I recollect it now, after seeing the post though

. I guess at that point Minister Jairam ramesh had announced that budget will be shared with IR to apply this bio degradable system. Err...My bad memory ..pls manichidunga

**aargee** · 04-16-2013, 08:38 PM

Today marks the 160th year completion of Indian railway since it's inception from 1853 from Bori Bunder to Thane

Read more here - Vintage images: 160 years of India's first passenger train journey

And Google India marks the celebration to it

Announcement

An INTRO to Locomotives..Steam /Diesel Electric / Electric.

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment