The project involved feasibility studies and system planning for conversion of an existing 1,500 V DC suburban railway traction system to a 25 kV AC traction system. The initial corridor covered the Churchgate to Borivali section, with planned extension up to Virar to establish a uniform traction system.

The study included evaluation of power supply at 22 kV and assessment of alternative traction substation configurations suitable for high density suburban rail operations. The project introduced advanced features such as gas insulated switchgear and bi-directional numerical distance protection for overhead contact lines.

TCE's Scope