This 160kVA alslo can supply the entire factory. A factory shut down is a period of time of the year where the factory performs maintenance towards its switchboards, distribution boards and transformers to ensure they are well serviced so that they will perform well throughout the year or before the next scheduled shut down. They are also important where factory upgrades can be performed, for example if the factory requires installation of a new transformer unit.
During the power shut downs, the TNB substation will have its Mains cut off and there will be no power supply to the entire or partially in the factory. Hence, a generator will be needed to supplement the gap during which the shut down is performed.