Power Distribution & Generator Backup
Power distribution to the data suite is through Piller Automatic Static Transfer Switches (ASTS) and into 415 volt Power Distribution Units (PDUs). The purpose of the ASTS is to select the preferred power source and deliver that power to the PDU. The PDU delivers power to the data suite racks via distribution boards which provide dedicated 16A, 240V circuits. In-Tuition’s racks are equipped with two 1,200V 16A circuits provisioned from different PDUs for redundancy.
Each UPS system is supported by a 2,500HP Caterpillar diesel engine that also generates power for essential loads such as cooling plant. All essential plant has dual supplies with automatic changeover. The essential distribution is designed to enable the service or maintenance of one generator without compromising the back-up supply to the essential plant.
Fuel is stored on site in two 30,000 litre below-ground diesel fuel tanks located in secure areas along the side of the building. Dual fuel supply systems ensure reliable fuel delivery to the day tanks for each diesel engine.
