In a significant move to upgrade urban infrastructure, the Southern Power Distribution Company of Telangana (TSSPDCL or TGSPDCL) has launched a major initiative to modernise the electricity distribution network across Greater Hyderabad. The discom has begun implementing an advanced pole-mounted distribution transformer (PMDT) system, marking a shift from traditional ground-based installations.
Why the Shift to Pole-Mounted Transformers?
Chairman and Managing Director Musharraf Faruqui explained that the new system addresses multiple challenges posed by the conventional method. Traditionally, installing a transformer required constructing a concrete plinth, needing 30–35 square feet of space and about a week for construction and curing. Associated equipment like the HG fuse set, distribution box, and AB switch had to be installed on a separate pole, leading to cluttered and unsafe surroundings that often accumulated garbage, complicating maintenance.
The modern pole-mounted system presents a streamlined alternative. The transformer is installed at a height of 6 to 9 feet on an 11-metre-tall spun pole with a diameter of just 377 millimetres. Crucially, all associated equipment is specially designed to be mounted on the same single pole.
Key Benefits and Current Implementation
This approach offers several immediate advantages. Installation time is slashed to a single day, and space requirements are minimised. The surroundings become safer, more orderly, and aesthetically pleasing. Maintenance is simplified, allowing a single staff member to safely perform tasks using a bucket ladder. Furthermore, the design allows for easy future connection of underground (UG) cables.
Currently, transformers with capacities of 63 kVA, 100 kVA, and 160 kVA are being installed on these 11-metre poles. Work is actively underway at 304 locations across Greater Hyderabad, with over 100 transformers already successfully commissioned under this new system.
Overcoming Challenges and Future Plans
Officials noted some logistical challenges, as transporting the 11-metre poles through narrow lanes is difficult. To overcome this, TSSPDCL is taking steps to also use shorter 9.5-metre poles. The company is also examining the feasibility of installing higher-capacity transformers using this pole-mounted method.
The discom is identifying problematic transformers through its "Currentolla Prajabata" programme, targeting units that pose public risks or obstruct roads. CMD Musharraf Faruqui stated that based on this identification, the new pole-mounted system will be implemented on a much larger scale in the coming days, signalling a comprehensive overhaul of the city's distribution transformer network for enhanced reliability and public safety.
