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A One Stop Point for all information pertaining to Metro Railway Kolkata Employee details, Tender Processing, Contract and Challan enquiries of Vendors.



 
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Salient Features


1.0 Rolling Stock:

 

1.1.Metro operation in Kolkata started in 1984 on an underground stretch of 3.4 km between Esplanade and Bhowanipore (now Netaji Bhawan). Initially, the rolling stock fleet comprised of 4-car rakes. Over the years there has been considerable expansion to the network, both underground and on elevated sections. With the increase in traffic, 8-car rake formation has become a standard for Metro Railway, Kolkata. The rolling stock organisation, headed by CEE/RS, broadly comprises of two wings, viz. maintenance wing and operation wing.

 

1.2.Salient Data on Rolling Stock:

 

 

BHEL Rake(1000 Series)

No of Rakes

9

Rake Composition

6 MC + 2 TC

Coach Length

19500 mm

Coach width

2740 mm

Coach Height

3700 mm

Tare Weight:

DMC

NDMC

TC

40 Tonnes

40 Tonnes

29 Tonnes

Gross Weight

(with Dense Crush Load)

DMC

NDMC

TC

58 Tonnes

58 Tonnes

47 Tonnes

Total Horse Power of Rake

3036 HP

Maximum Acceleration

1.1 m/s2

Max. Deceleration during braking

1.3 m/s2

Type of Brakes

ED, EP, Auto, Emergency

Supply voltage

750 V DC (nominal) – 3rd rail

Designed Speed Potential

80 KMPH

 

 

NGEF Rake(2000 Series)

No of Rakes

9

Rake Composition

6 MC + 2 TC

Coach Length

19500 mm

Coach width

2740 mm

Coach Height

3700 mm

Tare Weight:

DMC

NDMC

TC

40 Tonnes

40 Tonnes

29 Tonnes

Gross Weight

(with Dense Crush Load)

DMC

NDMC

TC

58 Tonnes

58 Tonnes

47 Tonnes

Total Horse Power of Rake

5221 HP

Maximum Acceleration

1.1 m/s2

Max. Deceleration during braking

1.3 m/s2

Type of Brakes

ED, EP, Auto, Emergency

Supply voltage

750 V DC (nominal) – 3rd rail

Designed Speed Potential

80 KMPH

 

 

Air Conditioned Rake(3000 Series)

No of Rakes

8

Rake Composition

6 MC + 2 TC

Coach Length

19500 mm

Coach width

2730 mm

Coach Height

3625 mm

Tare Weight:

DMC

NDMC

TC

47 Tonnes

47 Tonnes

35 Tonnes

Gross Weight

(with Dense Crush Load)

DMC

NDMC

TC

66 Tonnes

68 Tonnes

55 Tonnes

Total Horse Power of Rake

5449 HP

Maximum Acceleration

1.1 m/s2

Max. Deceleration during braking

1.3 m/s2

Type of Brakes

ED, EP, Auto, Emergency

Supply voltage

750 V DC (nominal) – 3rd rail

Designed Speed Potential

80 KMPH

 

1.3.Maintenance of Rolling Stock:

 

1.3.1.Various maintenance schedules and periodicity thereof prescribed at present for the rolling stock are as under.

 

Daily Inspection

Every day

3-Day Inspection

Every 3rd day

45-Day Inspection

After 45 days

6-Monthly Inspection

After 6 months

Annual Inspection

After 1 year

Periodic Overhauling (POH)

After 3,00,000 km of running or 5 years whichever is earlier

 

1.3.2.Running Maintenance: When operation of Metro Railway started in Calcutta, all maintenance of rakes was carried out at Tollygunge (now Mahanayak Uttam Kumar) car shed. The shifting of maintenance activities from Tollygunge shed to Noapara car shed (located approximately 2 km away from DumDum Cantonment station of Eastern Railway towards West) was completed in January 2004 to augment the manpower resources and to stick to the inspection schedules as per periodicity. Scheduled Maintenance activities of Rolling Stock are now mainly carried out at Noapara car shed while Mahanayak Uttam Kumar shed acts as a satellite shed where daily and 3-day schedules of rakes are carried out on round the clock basis. A connection from DumDum Metro station to Noapara exists for injection/withdrawal of rakes. Section-wise activities in Noapara car shed are as under.

 

Section

Activities

PPO

Overall in-charge for planning of maintenance activities, up-keeping of rake history, failure investigation, monitoring of action plan, co-ordination with POH.

Shift

Daily and safety checking of rakes, offering and withdrawal of rakes, minor unscheduled attention of rakes and co-ordination with TLC.Round the clock shift is working both at Noapara and Tollygunj Trip Shed.

Control Gear

Schedule and unscheduled inspection / repair of electrical power and control equipment i.e HSCB, switch gear equipments, battery, fan & light.

Electronics

Schedule and unscheduled inspection / repair of electronic controllers, MA Regulators, different electronic cards, Speedometers, Inverters.

Rotating Machine

Schedule and unscheduled inspection / repair of Traction Motor, MA set, Motor for compressor, Tacho Generator etc.

Pneumatic Brake

Schedule and unscheduled inspection / repair of pneumatic brake equipments, compressors.

Pneumatic Door

Schedule and unscheduled inspection / repair of door equipments like EP Valve, Door Actuator, Micro switches, door leaf adjustment etc.

Mechanical

Schedule and unscheduled inspection / repair of bogie, brake rigging, TRCC, passengers’ seat, cab door, ultrasonic testing of axles etc.

Heavy Repair

Planned / unscheduled replacement of bogies, Traction Motors, MC set, vestibules, under frame attention by lifting coaches etc.

Ancillary Equipment

Up-keeping and maintenance of static compressors, Fork Lift, static battery charger, periodical testing of ART equipments, charging of battery loco etc.

Stores

Custodian of non-stock and T&P items, withdrawal of stock materials from DSK & issue to different sections, scrap disposal.

 

1.3.3.Facilities Available at Running Shed.

 

i)Shed No. 1 at NOA;

                            Inspection pit                                      Eight Nos.(Line 20/21/22/23/24/25/26/27)

                            Heavy Lifting Bay                               One No. (Line 17/18)

    Stabling Lines                                      Nine Nos.(Line 10/11/12/13/14/28/29/30/31)

                            Run Round Test Track                         One No.(Line 32)

      Machinary and Plants:-

                EOT Cranes (30/6 Ton)                         2 nos.

                            EOT Hand operated Crane (15/3 Ton)    2 nos.

                            Static compressor                                   2 nos.

                            Static small compressor                           6 nos.

                            Fork Lifter (Diesel Operated)                  1 no.

                            Fork Lifter (Battery Operated)                1 no.

                            Pit Type Wheel Lathe                             1 no.

                            Battery Operated Locomotive                  2 nos.

                            Accident Relief Van                                2 nos.

                            Test Benches                                         7 nos.

                            Road Vehicle                                          3 nos. (Hired)

 

           ii)Trip Shed at TOL:

 

                Inspection pit                                            Four nos.(Line 6,7,8,9)

                            Heavy Lifting Bay                                     One no.(Line 10,11)

                            Stabling Lines                                           Three nos.(Line 4,5,16)

                            Test track                                                 One No.(Line 22)

         Machinary and Plants:

                            EOT Cranes (30/6 Ton)                            2 nos.

                            Pit Type Wheel Lathe                               1 no.

                            Battery Operated Locomotive                    1 no.

                            Accident Relief Van                                  1 no.

1.3.4. POH: POH Shop of Metro Railway is also located in the Noapara car depot complex. Initially during 1988, Shed No.2 was constructed and overhauling activities started with skeleton staff. Upto the end of 1993, Bogies were being overhauled at Noapara Car Shed and then transported by road to Tollygunge Car Shed. However, since 1994, full fledged POH activities have been started in Noapara complex and all sheds meant for POH works have been gradually commissioned to achieve the desired outturn. Section-wise activities of POH shop are furnished below.


 

Section

Activities

PPO

This section is at the first floor of Structure No.7.This section plans the complete overhauling activity in sequential manner for timely out-turn of overhauled coaches.The section also co-ordinates with the Running Shed regarding handing over of rakes and repair of off-POH failures.

Superstruc-ture

This section is in Shed No.3.The section undertakes corrosion repair, repair of coach body, interiors, floors, replacement of chequered sheet and overhauling of Schaku Couplers.At present powder coating is going on through contract and this job is also looked after by the Superstructure Section.

Bogie

This section is in Shed No.3. The section does overhauling and repair of bogies and the accessories.

Wheel

This section is in Shed No.9.The section does the overhauling of wheel sets, turning of wheels, assembly of axles and new wheels into assembly

Pneumatic

This section is in Shed No.5.The section strips the door & brake equipments from the coach and does the repair & overhauling of brake equipments and re-fit into the rakes.They also do the final commissioning and testing of brake and door equipments.

Control Gear

This section is in Shed No.5.The section undertakes the job of overhauling & testing of all electrical equipments except Rotating Machines

Stripping & Equipping

This section is in Shed No.3.The section strips all the electrical equipments from the coach and again re-fit the overhauled equipments in Metro Coaches.

Rotating Machine

This section is in Shed No.4.The section overhauls and repairs all the Rotating Machines viz. Traction Motors, Motor Alternator Sets, Compressor Motors and fans of Metro Rakes.

Testing & commissioning

This section is in Shed No.5.The section does the disconnection of cables of electrical equipments before stripping and does the re-connection of cables after fitment of electrical equipments.This Section also does the final testing of coaches and rakes from electrical side of overhauled coaches.

Millwright

This section is in Shed No.5.The section maintains all the Plants and Machinery and vehicles of POH Shop including the Pit Wheel Lathe and Cranes of Running Shed.This Section has ancillary staff who does the welding job and wheel turning job.The cleaning of POH Shop is done by this Section.This Section also does the repair & overhauling job of batteries of coaches.

 

1.1.1.Facilities Available at POH Shop

 

                  i)Shed No. 3:

 

i.

EOT Crane (35/10)

4 Nos.

ii.

EOT Crane (15/3 T)

2 Nos.

iii.

Pedestal Grinder

1 No.

iv.

Coil Spring Scragging M/c

1 No.

v.

Hydraulic Platform

1 No.

vi.

Bogie Static Load Testing M/C

1 No.

vii.

Shock Absorber Testing M/C

1 No.

viii.

Air Compressors

4 Nos.

ix.

Glow-check Penetrant Type Crack Detector Device

1 No.

x.

Magnetic Crack Detector Device

1 No.

xi.

Bosch Tank

1 No.

xii.

Coach Lifting Bay

2 Nos.

xiii.

Bogie placement track

2 Nos.

xiv.

Coach ingress - egress track -

2 Nos.

 

                  ii)Shed No. 4:

 

i.

EOT Crane (3T)

2 Nos.

ii.

Battery Chargers

1 No.

iii.

Radial Drilling M/C

1 No.

iv.

Vertical Surface Grinding M/C

1 No.

v.

Punching Shearing Cropping & Notching M/C

1 No.

vi.

Heavy Duty Centre Lathe

1 No.

vii.

Commutator Turning M/C

1 No.

viii.

Double Column Guillotine Shearing M/C

1 No.

ix.

Dynamic Balancing M/C

1 No.

x.

Commutator Mica Under Cutting & Chamfering M/C

1 No.

xi.

Air Compressor

3 Nos.

xii.

Baking Oven

2 Nos.

xiii.

Heat Chamber for Drying varnish

1 No.

xiv.

Induction Heater

1 No.

xv.

Banding / Winding M/C

1 No.

xvi.

AC/DC Test Bench for MA & Motor Compressor

1 No.

xvii.

Test Console for Traction Motor

2 Nos.

xviii.

Milli-volt Drop Tester

1 No.

xix.

Dusting Booth

1 No.

xx.

Light Duty Centre Lathe

1 No.

xxi.

Coach ingress - egress track

1 No.

 

                 iii)Shed No. 5:

 

i.

EOT Crane (3T)

1 No.

ii.

Battery Chargers

2 Nos.

iii.

Hacksaw M/C

1 No.

iv.

Welding M/C

2 Nos.

v.

Heating Chamber for Drying Varnish 1 No.

 

vi.

Different Test Rig for Pneumatic Component

9 Nos.

vii.

Road Mobile Crane

1 No.

viii.

Fork lift Truck

4 Nos.

ix.

Battery Operated Material Handling Truck

5 Nos.

 

                 iv)Shed No. 9:

 

i.

EOT Crane (3T)

1 No.

ii.

Wheel Press M/C

1 No.

iii.

Multipurpose Wheel Lathe

1 No.

iv.

Heavy Centre Lathe

1 No.

v.

Swivelling Jib Crane

1 No.

vi.

Motorized Hydraulic Jack

1 No.

vii.

Induction Heater

2 Nos.

viii.

Vertical Turret Lathe

1 No.

ix.

Track Line (For ingress - egress of Wheel Sets)

2 Nos.

 

               v)Shed No. 13:

 

i.

De-mineralizing Plant

2 Nos.

ii.

Capacitance / Tan-Delta Measuring System

1 No.

iii.

Static Compressor for Air delivery to POH Shops

1 No.



Besides the above, there is one TXR Shed used for coach stabling and minor repair works and there is an Electrically Operated Traverser facility in open area.

 

1.1.Rolling Stock Operation:

 

1.1.1.Crew Lobbies: One Motorman (Driving Motorman) in the front driving cab and one Motorman in the rear cab (Conducting Motorman) constitute the crew for one train. Signing on/off of the crew is done at two lobbies, viz. at Dum Dum and Mahanayak Uttam Kumar stations. The crew lobbies are provided with all the facilities prescribed for crew booking. Besides Motormen, few Shunters are also posted at Dum Dum for movement of rakes to/from Noapara shed and also to perform shunting operation in the shed.

 

1.1.2.Training of Crew: Training to running staff is given at the Training School at Noapara. Various kinds of training is as under.

 

 

SN

Nature of Training

Duration

Interval

1.

Initial Training to Trainee Motorman recruited through RRB

52 Weeks

One time

2.

Initial Training to Trainee Motorman inducted from Zonal Railway

24 Weeks

One time

3.

Initial Training to Shunter inducted from Zonal Railway

12 Days

One time

4.

Combined Refresher Course

3 Weeks

3 yrs.

5.

Fire Fighting

1 Day

3 yrs.

6.

First Aid

1 Day

3 yrs.

7.

Initial Training for Artisans promoted to Shunter

104 days

One time

 

1.1.A Stores Depot at Noapara caters to the material requirement for maintenance and operation of rolling stock.

 

2.0 Power Supply, Air-conditioning & Ventilation and Other General Electrical Assets:

 

2.1.The activities are distributed in four sections:

 

· Power Supply Distribution and Third Rail.

· Air-Conditioning, Ventilation, False Ceiling & Lighting.

· Escalators & Lifts

· Pumps and general assets.

 

2.1.1.Power Supply Distribution and Third Rail:

 

·    33kV Power Supply is received from CESC at three Receiving Substations (RSS) viz. Shyambazar, Central & Jatin Das Park. 33KV supply is extended from Shyambazar & Jatin Das Park RSS to Masterda Surya Sen (Bansdroni) RSS. The voltage is stepped down to 11 KV and fed to 15 nos. Traction substation and 34 nos. Auxiliary substations located at stations & mid points. All the Receiving Substations are interconnected through 33 kV cable network and all the Traction & Auxiliary Substations are interconnected through 11 kV cable network to maintain power supply in case of failure of power supply at any of the RSS. In the Traction Substations (TSS), 11 kV is stepped down to 604 Volts, rectified to 750 Volts D.C. and fed to 3rd rail for traction purpose. In the Auxiliary Substations (ASS), 11 kV is stepped down to 415 Volts for lighting, Air conditioning and Ventilation, Pumps, Escalators, Signalling and Telecommunication etc.

 

·    In addition to the 33kV sub-stations mentioned above, there are two receiving sub-stations, one at Metro Rail Bhawan and another at Belgachhia, where power from CESC is received at 6 kV, basically for commercial/domestic loads.

 

·    3rd rail between Noapara and Kavi Subhash is fed at 15 Traction Substations with average spacing of 1.8 Km. From Traction Substations, 750 Volts D.C. is fed to 3rd rail through DC High Speed Circuit Breakers and cables. Power Supply is controlled through SCADA system from centralised Traction Power Control located at 4th floor of Metro Bhawan.

 

·    Routine maintenance of these assets is done departmentally. Major repair/replacement work is carried out by contractual agencies as per requirement. SCADA system is maintained by M/s. ABB, Bangalore through AMC.

 

2.1.2.Air Conditioning, Ventilation and Lighting:

 

·    All 15 underground stations of Kolkata Metro are equipped with ventilation and air-conditioning system. There are 149 no. ventilation fans working as supply or exhaust fans. The supply fans deliver fresh and cool air to station premises and tunnel sections, where as the exhaust fans remove air from under platform and mid tunnel points.

 

·    The centralised type station air conditioning system consists of water cooled chillers, cooling tower, cooling coils and associated ducting. The AC plant capacity for each station ranges from 600 TR to 1200 TR. As per DMRC's recommendations, the use of air washery has been discontinued thereby achieving energy saving. In lieu, dry type filters have been installed.

 

·    Fluorescent tubes are used for station and tunnel illumination. The switching of lighting system is done through SCADA system as per need during commercial & non-commercial hours. Out of 23 stations, 7 stations are provided with Energy Efficient Light (T-5). Emergency Lighting system is provided with battery backup.All the 15 underground stations are provided with aluminium false ceiling with perforation for minimising noise level inside the station. Mural lighting has been provided at stations for beautification purpose.

 

·   Routine maintenance of Air Conditioning system is done through outsourcing whereas routine maintenance of Ventilation and lighting system is done departmentally.

 

2.1.3.Escalators & Lifts:

 

·    64 nos. escalators in service have been installed at 20 stations. Of these, 21 nos. are for carrying passengers from platform to mezzanine and 14 nos. from mezzanine to surface. 20 nos are from concourse to platform and vice-versa. 5 nos. at Dum Dum station & 2 nos at Kavi Subhash, are meant for carrying passengers from ground level to platform and vice-versa and 2 escalators are installed at Tollygunge subway.

 

·    Two escalators are under erection at Jatin Das Park station and two more are under supply. Twenty-five more escalators will be provided at different stations under sanctioned work to facilitate passenger movement.

 

·    Two nos. of escalators have been erected at Kavi Subhash station (for Eastern Railway platform).

 

·    In the underground section no passenger lift has been provided. In the elevated section (Netaji – Kavi Subhash) lifts have been provided between concourse level and platform level for physically challenged and aged person. Three no service lifts are provided at maintenance depots and nine no. passenger lifts are provided at Metro Rail Bhavan and residential complexes. One patient lift has been provided at Hospital. Three more lifts are under provision at New Hospital under construction at Tollygunge.

 

·    Routine maintenance of lifts and escalators are outsourced.


 

1.1.1.Pumps and Other General Service Assets:

 

·    There are 117 Dewatering Pumps of different capacities installed in sump pits at different locations to pump out seepage water, effluent of toilet, sanitary effluent etc. and discharged into Municipal sewer. All these pumps are made “ON” and “OFF” automatically by water level controller.

 

·    There are 44Tube well Pumps of different capacities installed at different locations to meet water required for platform cleaning, drinking, fire fighting etc. Presently only 25 Tube-well Pumps are working, remaining has dried up.

 

·    Periodical maintenance and performance checking of pumping system is done for reliable service. Routine maintenance of pump is done departmentally and repair activity is outsourced.

 

·   Other assets include passenger amenity items like water coolers & illuminated signage, approximately 20,000 tube light fittings, fans, battery and battery chargers, UPS, window and split air conditioners, service sub stations, colony and service buildings etc.

 

1.1.2.Power Requirement:

 

The Contract Demand for the different receiving sub-stations is as under.

 

Name of the RSS

Voltage

Contract Demand

Shyambazar

33 kV

6.5 MVA

Central

33 kV

12.0 MVA

Jatin Das Park

33 kV

9.0 MVA

Metro Rail Bhawan

6 kV

0.4 MW (commercial)

Belgachhia

6 kV

0.11 MW (domestic)

 

 1.1.3.The Stores Depot at Noapara caters to the material requirement (stock items) for maintenance of power system.

 




Source : Metro Railway Kolkata / Indian Railways Portal CMS Team Last Reviewed on: 16-10-2012  


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