In the substation there are many electrical equipment used for electricity supply, metering and controlling, the control system will be back up by the battery and battery charger especially when the main power supply is black out. The battery and battery charger shall supply electrical power to the substation's control circuit and emergency lightings. Major loads will be circuit breaker tripping and closing. Distribution will be made to the various loads throughout the station through standard circuit breaker distribution panel board.
Most of the large capacity of rechargeable batteries will be used and provided standby power for switching, telephone exchanges or computer data centers, the electronic charger will also be offered as a package complete set. The battery can be acid or alkaline type depended on the purpose of utilization for each customer. The battery and battery charger are of high efficiency, tropicalized design for wide ranges of customer.