Tata Power Delhi Distribution Limited (TPDDL) has commissioned a 66/11 kV grid substation at Narela Sub City-1, New Delhi, which will benefit over 45,000 domestic customers. The substation, which has been built at a total cost of Rs 206.2 million, will improve the reliability of power supply and facilitate the load growth in these areas. It has an installed capacity of 50 MVA, with 16 outgoing feeders at the 11 kV level, two 66 kV incoming underground cable circuits from Delhi Transco Limited’s 220 kV Bawana substation and two more 66 kV lines proposed from the upcoming Narela Sub City-2 substation. The new substation is equipped with two power transformers of 25 MVA capacity each and a Nitrogen Injection Fire Prevention and Extinction System along with an auto-switched capacitor bank to ensure safe and quality power supply. The substation is unmanned and will be remotely operated from TPDDL’s state-of-the-art supervisory control and data acquisition centre. The substation was jointly inaugurated by Praveer Sinha, chief executive officer and managing director, TPDDL, and R.K. Malhotra, executive vice-president and head, electrical and automation business, Larsen & Toubro.