HYDERABAD: The Telangana State Power Transmission Corporation is taking all steps for uninterrupted power supply to the Hyderabad metro rail, the work on which is going on at a brisk pace. The maximum power requirement will be around 125 MW and the consumption per day for running trains and operating stations will be about 7.63 lakh Kilowatt hours/units. Each train will consume 450 kilowatt hours/units per trip on Corridor-I (Miyapur-LB Nagar) and Corridor-III (Nagole-Shilparamam), and 300 Kwhrs/nits on Corridor-II (JBS-Falaknuma).
A 30-km-long track — 13 km of Miyapur-Ameerpet stretch of Corridor-I and 17 km of Ameerpet-Nagole of Corridor-III is scheduled to be inaugurated by prime minister Narendra Modi on November 28. The power requirement for this first phase of operations will be 60 to 65 MW a day. The project is equipped with a 25-KV AC electrical system and is fed by a 133-KV incoming power line from the Telangana Grid that caters to all the four receiving substations (RSSs). Trains will be run on a 25-KV AC single-phase Supply. Each metro station is being equipped with an auxiliary substation built to international standards using state-of-the-art technology and quality electrical equipment.
According to HMR officials, power consumption by the metro rail system will have two major components — train services (traction) and auxiliary services (at stations, depots, operations control centre, etc). The total consumption per day for both these services will be about 7.63 lakh units.
Power is supplied to the metro rail network directly by the Transco from four dedicated 132 KV receiving substations (RSS) at Uppal and Miyapur metro depots, Yousufguda and MGBS. Enough redundancies have been built into the metro power supply network for ensuring reliable supply in case of failure of equipment and also for extension of feed from one RSS zone to another in case of problem.
The annual power consumption by the metro rail system for the next seven years is estimated at: 1,897 units in 2017-18, 1,982 lakh Kwhrs/units in 2018-19, 1,981 lakh Kwhrs/units in 2019-20, 1,981 lakh Kwhrs/units in 2020-21, 1,982 lakh Kwhrs/units in 2021-22, 1,982 lakh Kwhrs/units in 2022-23 and 2,865 lakh Kwhrs/units in 2023-24. This estimate has been arrived at after taking about 30 per cent saving in power consumption due to incorporation of sophisticated “regenerative” braking system in trains and adoption of other energy conservation measures.
On the right track
30-km-long track — 13 km of Miyapur-Ameerpet stretch of Corridor-I and 17 km of Ameerpet-Nagole of Corridor -III — is scheduled to be inaugurated by Prime Minister Narendra Modi on November 28
Power requirement for the first phase of operations will be around 60 to 65 MW a day