practices & procedures

7/31/2019 Practices & Procedures

1/29

MGR OPERATION PRACTICES

1) TOTAL MGR CIRCUIT IS DIVIDED IN 3 CONTROLSTATIONS.2) MOVEMENT OF RAKE/LOCOMOTIVE , FROM ONE

STATION TO ANOTHER , AFTER GETTING LINECLEARANCE THROUGH PRIVATE NUMBER EXCHANGE& RECEIVING SLOT.

3) ALL MOVEMENTS DONE WITH SIGNALS ONLYWHEREEVER PROVIDED.

4) STATION WORKING RULE FRAMMED & DISPALYED ATALL CONTROL STATIONS.

5) ABSOLUTE BLOCK WORKING FOLLOWED DURINGRAILWAY MOVEMENT THROUGH DUDHICHUA CIRCUIT

,WHERE ONLY ONE PARTY OPERATES AT A TIME


2/29

SAFETY ASPECTS IN MGR

OPERATING SYSTEM1) STRICT ADHERENCE OF STAION WORKING

RULE & MOVEMENT THROUGH SIGNALS .2) REGULAR BRAKE POWER TESTING OF

RUNNING RAKES , AT LEAST ONCE IN AWEEK.3) SIGNAL OVERSHOOT PROTECTION SYSTEM

PERIODICALLY TESTED.4) MONTHLY SAFETY AUDIT THROUGH VSTPP

SFAETY TEAM & TECHICAL AUDIT THROUGHCORPORATE CENTRE TEAM.5) YEARLY SAFETY AUDIT IS PLANNED

THROUGH RAILWAY EXPERTS.6) REGULAR FOOT PLATE INSPECTION BY

DEPARTMENTAL HEAD & OTHER SENIOROFFICIALS


3/29

MAGOR ACHIEVEMEVTS OF

MGR OPERATING GROUP1) COAL TRANSPORTATION --

In a Single Day 58,835.96 (Dt = 25/03/2007)

In a Month

14,14,867.55 (March -2007)In a year 117.29 Lakhs

2) No Mishap in MGR System since last 16 years.

3) Safe movement in MGR Circuit , with multiple

sources of coal off take including Railways,materialising a steady off take of more than45,000 MT/day, the highest among all NTPCProjects as on date .


4/29

BEST PRACTICES OF MGR

OPERATING SYSTEM, VSTPP1) Operating Rake Size of 50 wagons (Highest

among NTPC Projects ) with Guard Van as LastVehicle.

2) Confirmation of Last Vehicle at each controlstations.3) Checking Brake Pressure at the last vehicle

during every Tripp checking on Empty run atMGR Control Room.

4) The outer Signal of any Control station(despatching end) is interlocked with SLOT , tobe received from the Control station in advance(sending end)

5) All Control station are Provided with Hot LineTelephone, in addition to NTPC Telephone &Wireless Communication.


5/29

DETAILS WDM2A WDS6 WDG-3A Number of Locos 2 4 4

HP 2400 1200 3100

Max Speed(KMPH) 120 60 100

HSD Tank Cap(Lts) 5100 4100 6000

Weight 120 MT 126 MT 112MT


6/29

Type of Wagon BSCL CIMMCO TEXMACO

No of Wagons 43 67 39 +119 Total 268 Nos

Year of Commng !988-89 1990-91 2000-01

2005-06

DOM System Single Link Single Link Double

Axle Load(Ton) 22.9 22.9 22.9

Length(M) 13.41 13.41 13.41

ROLLING STOCK(WAGON)

(All wagons are BOBR Type)


7/29

LOCO MAINTENANCE

Light Schedule: T1,T2,M1,M2 including

trouble shooting in MGR Work Shop.

Heavy Schedule: M4 &M6 includingBreakdown Maintenance in MGR Work

Shop.

Major Schedule: M 24 & M 48 in Railway

Diesel Shed( like Patratu E.C.Rly)

POH:M 96 at Railway Workshops Golden

Rock(Trichy)


8/29

Details of Major Overhauling

of Locos Done at Golden

Rock/Trichy During 2006-07 LOCO TYPE OF TOTAL

NO SCH EXPENDITURE

V-001 M-96(POH) 93,34,741

V-002 M-96(POH) 89,02,220


9/29

Major Overhauling Planned at

2007-08

LOCO NO TYPE Of SCH

S-006(WDS-6) M-96 AT GOCTRICHY

2520(WDM2) M-96 AT GOC

TRICHY

2537(WDM2) M-96 AT GOC

TRICHY


10/29

DETAILS OF WAGON

MAINTENANCE Monthly Maintenance of 4 Rakes (50

Wagons)

Overhauling of DOM Systems includingSpool Valves, Brake Systems including

Distrubutor Valves.

Wheel Changing &

Overhauling/Reclamation of Axle

Bearings.

Reclamation of Wagon Doors.


11/29

Major Jobs Planned 2007-08

Wagon POH of 20 Wagons.

Overhauling of 100 Bearings.

150 nos of Wheel Changing, FlangeWelding , Tyre Turning & UTS

Reclamation of Wagon Doors Brake

Beams .

Overhauling of Distrubutor & Spool

Valves


12/29

CRITICAL ISSUES

LIMITED SPACE FOR MGR

WORKSHOP- NOTE SHEET MOVED

IN 2002 BUT TURNED DOWN.AGAINMOVED IN 2006, NOW WITH ENGG.


13/29

CRITICAL ISSUES

TWO NOS LOCO REQUIRED IN

ADDITION TO 9 LOCOS ATPRESENT.ONE LOCO ARRANGED ON

TEMPRORY BASIS FROM NTPC SIPAT.


14/29

Length of main MGR coal circuit 19.6 Km.

Total 52 Track Kilometer (including DCH &

Non-coal track) is maintained by MGR/VSTPP

Almost 40% i.e.7.8 Km of main MGR are in

curvature

Steepest Gradient 1 in 125 Dn.

52 Kg rail, short welded rail panel, T-12 rails for

main line and T-18 for yard lines in use.

SALIENT FEATURES OF

MGR TRACK


15/29

No of Points & Crossings in total :1 in 8 48 nos1 in 12 03 nos

Sleeper density M+7 in main line andM+4 in yard lines. PRC sleepers laid

throughout main MGR track Total number of bridges & culverts -

34, Longest being 78 M steel girderbridge at DCH line.

SALIENT FEATURES OF

MGR TRACK


16/29

Daily patrolling of the entire track by foot

Packing of track at locations where slackness

found Through packing of entire track once in a year

Lifting of track at required locations

Overhauling of track Replacement of worn out rails and sleepers

Maintenance of Hand lever operated points

ROUTINE TRACK MNTCE


17/29

Re-alignment of curvature where distorted.

Lubrication of fish-plated joints yearly.

Greasing of gauge face of curvature track.

Removing spillage coal from track in W/Shop

areas . Drain cleaning & de-weeding along the track.

ROUTINE TRACK MNTCE


18/29

1. Supply & spreading of ballast 5400 M3 for MGR track to makeup deficiency .

2 Laying new Crossover between L/Line & E/line near MGRW/Shop for increasing operational facility .

3. Reshaping & strengthening of track embankment at differentlocations for improving safety of track .

3. Replacement of worn out rails/tongue rails & crossings - 150Nos

4. Overhauling of Points & Crossings - 21 sets

5. Replacement of worn out bridge timber 10 Nos at BalliaNallah bridge at DCH6. Realignment of track curvature for 3000 M.7. Through packing of track for the entire main MGR and DCH

track .

MAJOR MNTCE DONE IN

2006-07


19/29

1. Supply & spreading of ballast 6000 M3 for MGRtrack to make up ballast deficiency

2.Replacement of bridge timber 300 Nos on all the 4 nos

of steel girder bridges with steel channel sleepers.

3. Replacement of worn out rails/crossings 100 Nos

4. Replacement of worn out wooden sleepers of

Points & Crossings102 Nos

MAJOR TRACK MNTCE

TARGETS FOR 2007-08


20/29

MAJOR MNTCE TARGETS

FOR 2007-08 Inspection of steel girder bridges by outside expert

agency.

Scheduled to Carry out U S F D on entire length

of MGR track . Deep screening of nominated track.

Replacement of existing wooden P&C with PRClayout.

Replacement of existing steel sleeper with PRCsleeper.

Painting of 04 no. steel girder bridge.


21/29

5. Re-alignment of curvature - 3000M .6. Overhauling of track - 10000M .

7. Lifting of track & Points Crossings - 2500M

8. One round through packing of the entire track length.9. Reshaping & strengthening of embankment at different

locations for safety of track.

MAJOR MNTCE TARGETS

FOR 2007-08


22/29

Signalling system with wireless communication

is fully operational for safe train movement

Multi-aspect Colour light signalling withmotorised operation of Points

System is operable from a interlocked Control

Panel with mimic diagrams located in Cabins

Real time movement of trains are monitored

thro Panel

SIGNAL & TELECOM SYSTEM

OF MGR


23/29

Vulnerable areas of the track are electrically

circuited which are activated by the passage of

trains for ensuring maxm safety in trainoperation

Inter slotting system between the Cabins

ensures tangible involvement of two Cabins for

receiving & despatching of trains

Apart from the Signals, communication

channel between the Control & Driver is

established thro Wireless & Walkie Talkie

sets.

SIGNAL & TELECOM SYSTEM

OF MGR


24/29

Maintenance of Secondary cells numbering 300

Nos

Checking & adjustment of Point machines 33 Nosfor correct setting in Normal & Reverse positions

Maintenance of 50 Nos Track Circuits

Adjustment of Voltage & correct focussing of

Signals

Checking of interlocking circuits for proper

correspondence between Panel & Site

ROUTINE S&T MNTCE


25/29

Visual inspection of Relays

Maintenance of Wireless and Walkie Talkie

sets Maintenance of 2 Nos DG sets (for Standby

Power supply)

ROUTINE S&T MNTCE


26/29

Replacement of 30 Nos Secondary cells

500 Mtr Signalling cable laying between MGRrelay room & location near point 11

Introduction of signal overshoot protectionsystem in MGR circuit.

New signal no.26 installed with necessary

cable laying and circuitry modifications &commissioned at NGH cabin area to improvesafety in train operation.

MAJOR S&T MNTCE DONE

IN 2006-07


27/29

2000mtr length 30core x 1.5 sq mm slotcable laying done from jayant silo(35point) to wharf wall

24c x1.5 sq mm size, 500mtr length cablelaying done at IOC point area DCH line

Replacement of old cable with new one 300 mtrat T/H area.

MAJOR MNTCE DONE IN

2006-07


28/29

5o nos secondary cells to be replaced

Insatalling signals at DCH line

location near point 31&30 24c x1.5 sq mm size, 4000mtr length

cable laying for signalling restorationwork

Making track circuits and restoringsignalling system on DCH line at IOCpoint area.

MAJOR S&T MNTCE

TORGET FOR 2007-08


29/29

practices & procedures

Documents