Its an EMERGENCY BACKUP DC SOURCE. A Highly Efficient Rugged DC Source with an onboard battery bank capable of sourcing dc to the protection systems of the TD substations. AUX POWER Provides safe DC power in the yard or remote location during an emergency, testing and maintenance of power and protection equipments of the sub stations. They are portable, quite, safe and re-chargeable DC sources of power available in any standard voltages. Variants of AUX Power: 220V, 110V and 48V DC voltage variants. Salient Features: Maintenance free Long shelf life Easy to operate Fast recharge Tough and compact Leak proof Totally weather protected Lightweight and portable As per your need all our products solutions can be customized new ones can be innovated too.