Testing of overcurrent protection for the battery supplied system

Performance of maintenance and testing on battery systems in accordance with the battery manufacturer's recommendations is mandatory for protecting the battery and maintaining reliability of the power systems. Another form of protection that is often not provided and overlooked is overcurrent and short circuit protection. This paper deals with investigation of the overcurrent protection circuit designed for the battery system as a primary source of the device. The main problems are transients that occur after connecting and disconnecting of the main power source. Therefore in this paper different states and topology connection of the protection are examined.