Sectors
Transmission & Distribution, Power
Services
Design & Engineering
Location
Maharashtra, India
The South Mumbai Ring System was planned to enhance reliability of power supply in the southern parts of Mumbai through creation of a 220 kV cable-based ring network. The project included development of new 220 kV gas insulated substations and interconnection through a 220 kV XLPE cable system linking new and existing substations.
The first phase comprised establishment of a new gas insulated substation and a 220 kV cable connection from an existing substation via an intermediate node. The system was designed to supply power at 110 kV. The substation was planned with two 250 MVA, 220/110/33 kV transformers along with associated electrical equipment.
The gas insulated substation had a built-up area of approximately 2,500 square metres. Utility systems included fire protection systems, emergency diesel generator supply, potable water systems and an integrated building management system. The substation was designed for remote operation with full SCADA integration.
TCE's Scope
TCE provided architectural design, detailed engineering and procurement support for civil works, electrical systems and mechanical systems. The scope included design of utility systems, integration of control and protection systems, and finalisation of SCADA requirements and equipment interfaces.
TCE was also involved in planning of auxiliary systems, coordination of building services and integration of safety and monitoring systems within the compact substation layout.
Impact
The project strengthened transmission reliability in a dense urban environment through space efficient gas insulated technology. The ring configuration improved redundancy, operational flexibility and resilience of the city’s power network, supporting stable and secure electricity supply to critical urban loads.
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