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METRO RAILWAY, KOLKATA

METRO RAILWAY, KOLKATA. PRESENTATION BY ELECTRICAL DEPARTMENT ON THE VISIT OF SRI R.S.GROVER, ADDL. MEMBER ELECTRICAL ON 14 th JULY, 2005. CONSTRUCTION OF 5 RAPID TRANSIT LINES OF TOTAL ROUTE LENGTH OF 97.5 KM WAS PREPARED IN 1971. MASTER PLAN.

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METRO RAILWAY, KOLKATA

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  1. METRO RAILWAY, KOLKATA PRESENTATION BY ELECTRICAL DEPARTMENT ON THE VISIT OF SRI R.S.GROVER, ADDL. MEMBER ELECTRICAL ON 14th JULY, 2005

  2. CONSTRUCTION OF 5 RAPID TRANSIT LINES OF TOTAL ROUTE LENGTH OF 97.5 KM WAS PREPARED IN1971. MASTER PLAN

  3. DUM DUM TO TOLLYGUNGE ROUTE LENGTH - 16.45 KMsBEING THE BUSIEST CORRIDORSANCTIONED ON 1-6-1972. NORTH-SOUTH CORIDOR

  4. First METRO Service commenced on 24-10-1984 between ESP-NBN covering 5 stations.Thereafter different sections were opened progressively and Finally the stretch on 27.9.95.

  5. SALIENT FEATURE OF METRO RAILWAY KOLKATA

  6. General Features GAUGE : 1676 mm LENGTH (DMI to TOL ) : 16.45 km GRADIENT : 2% on running line & 4% on approach to carshed. COACH : BG Bogie & MG Shell

  7. NO. OF STATIONS UNDERGROUND : 15 ELEVATED : 1 SURFACE : 1 DISTANCE BETWEEN STATIONS AVERAGE : 1.020 km MAXIMUM : 2.151 km (DMI – BEL) MINIMUM : 0.597 km (CEN-CWC )

  8. TRAIN FREQENCY PEAK HOUR : EVERY 8 MINUTES NON PEAK HOUR : EVERY 10/15 MINUTES NO. OF TRAINS WEEKDAYS : 190 SATURDAY & HOLIDAYS : 164 SUNDAYS : 64

  9. ROLLING STOCK/ TRACTION NO. OF COACHES : 144 (9 NGEF RAKE + 9 BHEL RAKE) TRAIN COMPOSITION : 2 DMC 2 NDMC-MA 2 NDMC –MC 2 TC   CLASS OF ACCOMODATION : ONE CLASS

  10. VENTILATION AND AIRCONDITIONING MainParameters MAX PERMISSIBLE TEMP AT STATION : 30 oC MAX TEMP. IN TUNNEL : 32.8 0C MAX. RELATIVE HUMIDITY AT STATION : 87% MAX HUMIDITY IN TUNNEL : 77% MAX. AIR VELOCITY AT STATION : 2.5 m /sec AT TUNNEL : 3.0 m/sec

  11. ESCALATORS: • TOTAL ESCALATORS : 38 • MINIMUM RISE : 4 Mt. • MAXIMUM RISE : 7 Mt. • INCLINATION : 30O • WIDTH : 1.1 Mt. • PASSENGER CLEARING • CAPACITY : 800 Persons/Hour • SPEED : 0.45 Mt./Sec. • MOTOR CAPACITY : 7.5 KW TO 12 KW

  12. Fare structure :ZoneDistanceFare(Rs.)I up to 5 kms.4.00II 5-10 kms. 6.00III Above 10 kms.8.00

  13. Power supply

  14. 33 KV SYSTEM • 33 KV 50 Hz 3 o supply is obtained from CESC at 4 receiving sub-station. • These sub-station are inter-countered with MR 33 KV feeder cable laid through the tunnel. • 33 KV is stepped down to 11 KV at receiving sub-station. • Except Rabindra Sadan, all other Metro Railway Stations are having two independent feeders.

  15. 33 KV Incoming From CESC 33 KV System 33KV/11 KV 16 MVA(Oil Type) 11 KV System Traction Transformer Auxiliary Transformer Rectifier HSCB Isolators 415 Volt System 3rd Rail To Loads like pump, fan, light,AC Plant etc. Running Rail Metro Railway Electric Power Distribution Systems

  16. Third Rail System • Technical assistance extended by OSAKA Municipal Transport Bureau for 3rd rail current collection and rolling stock design. •        Air condition and ventilation of OSAKA Metro was adopted as climatic condition are same i.e. high humidity and temperature. •      Flat bottom foot 52 kg/m rail of high conductivity (specific resistance being seven times that of copper) also known as rimming steel is used as conductor of power at 750 V dc. •       Overall resistance 0.029 ohms per km.

  17. Third Rail Laying System 3rd rail laid as specially prepared bed on the outer side of running track with insulating high density polyethylene inserts for fixing the conductor rail mounting assembly consisting of 3.3 KV porcelain insulator, galvanized mild steel frame work for mounting FRP shroud board on top and rear. 3.3 KV insulators are spaced at 2.50 mt apart .

  18. Neutral Section Neutral section (air gap) is provided in the trailing direction of station platform at every traction station . Length of N/section :15.50 mts; current collectors are spaced at 13.50 meters.

  19. Need for ventilation • To ensure supply of fresh Air for Passengers(O2) • To dilute obnoxious & hazardousgases • To bring down the relative humidity • To dispose of large quantity of heat by Traction Eq.,Auxiliary appliances, Human Body • To dispose of heat leaked inside the subway from the surrounding soil

  20. Air Ventilation Design criteria Fixing Up Ambient Condition (90% of day of any season) from last 5 Year Record from Metrological Department at 10 Hrs. when peak Traffic Occurs. Because of pollution and Dust, Air washery had been provided at every fresh air intake. Now at Esplanade station, dry air filters have been provided & air washery closed to save electricity consumption.

  21. Rake Formation Comparative Study

  22. Comparative Study (Contd..)

  23. EXTENSION OF METRO FROM TOL TO GARIA SANCTIONED IN 1999-2000 TOTAL ROUTE LENGTH : 8.70 Kms. VIADUCT : 8.60 Kms. LEVEL TRACK : 0.10 Kms. NO. OF STATIONS : 6 KUDGHAT,BANSDRONI,NAKTALA,GARIA BAZAAR,PRANABNAGAR and NEW GARIA SANCTIONED COST : Rs. 907 Crores 1/3 COST OF THE PROJECT WILL BE SHARED BY THE STATE GOVERNMENT T.D.C. : MAR. 2007

  24. Number of Stations • Elevated Stations 5 (five) Nos. • Surface Station 1 (one) No. • NAME OF STATIONS : • KUDGHAT • BANSDRONI • NAKTALA • GARIA BAZAR • PRANABNAGAR • NEW GARIA ( AT SURFACE )

  25. CIRCULAR RAILWAY EXTENSION: • Metro Rly. is also executing Circular Railway extension project for E.Rly. • Extension from Prinsepghat to Majerhat: • Project sanctioned in 1999-00 • Route length : 5.75 Kms. • Viaduct : 4.00 Kms. • Level track : 1.75 Kms. • No. of station : 2 (Both elevated) • Khidderpore & Remount road • Estimated cost : 118 Crores • T.D.C. : Work Over CRS’s sanction awaited

  26. CIRCULAR RAILWAY EXTENSION Contd.: b) Extension from Dumdum Cantt. to NSC Bose Airport: Project sanctioned in 2000-01 Route length : 4.00 Kms. Viaduct : 3.25 Kms. Level track : 0.75 Kms. No. of station : 2 (Both elevated) Jessore Road & Airport station Estimated cost : 111 Crores T.D.C. : Aug. 2005

  27. Air intake (110 M3) Air intake (110 M3) Platform leakage 5 M3 5 M3 Mid Tunnel exhaust 60 M3(Total) 60 M3(Total) Mid Tunnel exhaust 50 M3 50 M3 30 M3 30 M3 80 M3 80 M3 25 M3 To Tunnel Air intake Under Platform exhaust Platform (60 M3) Air Flow Diagram in per Second Under Platform (25 M3) (50 M3) Platform leakage (5 M3) (30 M3) Tunnel (80 M3)

  28. GENERAL SERVICES Power Consumption General0% Non-Traction:63% Traction:37% Breakup Consumption of General Service Energy Consumption

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