Situated next to PSA’s container terminals, Tanjong Pagar Distripark comprises two 5-storey blocks offering 60,000m² of prime logistics space. This facility had an existing power system with 6.6kV feed from PSA. PowerQ’s role for Phase 1 was to evaluate current power demand and forecast future demands. PowerQ evaluated multiple options for upgrade and prepared a detailed feasibility report.
Phase 2 of the work involved engineering design, liaisoning with utility distribution company, tendering and project management services. The system was upgraded to 22kV feeders supplied from a new source and a new 22kV substation was built and an old 6.6 KV transformer was replaced with 4×2.5 MVAONAN transformers, 22kV ABB switchgear and a 4000A low voltage bus duct was also replaced. Also as a part of upgrading the facility was installed with emergency diesel Genset to supply emergency loads.
The challenge was to create a parallel power system and transfer the power from 6.6 kV to 22kV system during weekend/ overnight shutdown to minimize the affect on ongoing work. The engineering contractor Shinryo took care of all safety precautions to avoid disruption during power transfer by incorporating contingency measures such as portable gensets. The project also involved an upgrade and alteration of other systems such as fire protection and the ventilating system.