Abstract

In this paper we study the load variation for an electrical consumer when it remains powered by an emergency power supply through an uninterruptable power supply due to a circuit failure and the way that the load varies when the main and backup power supply comes on. The study was conducted due to the fact that when the main power supply tripped, the emergency power supply, ensured by a diesel power generator with a time delay of 30 seconds, always tripped immediately after connecting, thus leaving the consumer powered by the uninterruptable power supply which has a 10 minutes limited supply.

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