Hyderabad: City residents are familiar with the problem of three-phase supply often tripping to single phase due to overloading. There is some hope that the problem could ease, with officials saying that new infrastructure is being installed to smoothen out the kinks.
Telangana Southern Power Distribution Company and Transco are spending over Rs 1,000 crore to construct power infrastructure that will reduce the burden on sub-stations, feeders and transformers, facilitating near-uninterrupted power supply to the city.
Seven new sub-stations of 33/11 KV will be constructed in the old city and another seven in Secunderabad. On the city’s outskirts, both Transco and Discom have planned 220/132 KV and 33/11 KV sub-stations to cater to the growing demand. Officials said that most of the infrastructure would be in place by March 2017.
After this, they could start working on a project to inter-connect 33/11 KV sub-stations within the city, so that if supply trips at one sub-station, it can be restored from a connected sub-station within seconds.
“Though this facility is in place, it is not of much use as the sub-stations and distribution transformers are overloaded. The construction of new sub-stations and replacement of high-powered transformers was needed for a long time,” said TS Southern Discom director (operations) J. Srinivasa Reddy.
He said with the TRS government laying special focus on adding power infrastructure to meet the growing power demand, several sub-stations have been inaugurated in the last year and many more would be completed in a year.
The 400 KV sub-stations surrounding the city, located at Mamidipally, Ghanpur, Malkaram, Gajwel and Shankarpally, have been inter-connected and linked as a ring around the city.
They get supply from generating stations at Srisailam, Kothagudem, Vijayawada, Amagundam and Bhupalapalli. The 765 KV Wardha-Nizamabad-Maheshwaram line being laid by the Power Corporation of India will also be connected soon.
“Though there is continuous power supply from the 400 KV sub-stations to the city, interruptions at the local level can be avoided only after completion of new sub-stations,” said TS Transco director (transmission) T. Jagath Reddy.
