RMU battery charger (24V) is specially design for switch gear unit. It provides power to switch gear motor without any interruption. The system gets operating supply from Charger 1, Charger 2 and Battery. Both the Charger Outputs are combined through a suitably rated Blocking Diode. This final output is given to the Battery as well as for Load through the Controller Card. If there is any failure in Charger 1, Charger 2 will take care of Battery Charging process and the Entire Load. During Mains Failure/ Failure in Both the Chargers, Battery will take care of Entire Load. So Failure in any One/Two Power sources (Charger 1, Charger 2 & Battery), the alternate source will take all the Load, and also ensures Bumpless switching between the sources.
This system consists of mainly three parts. They are 1. Redundant Battery Chargers 2. 24V Battery 3. Controller Card.
Visual Indication Descriptions: 1. MCU Faulty (Red Led): This will blink whenever the control section malfunctions or controller gets hang. 2. Charger 1 Fail (Red Led): This will glow whenever the Charger 1 output fails/falls below its threshold level. 3. Charger 2 Fail (Red Led): This will glow whenever the Charger 2 Output Fails/Falls below its threshold level. 4. Battery Low/Battery Reverse (Red Led): This will glow whenever the Battery Voltage falls below the threshold level/Battery is been disconnected/Battery is been connected in reverse way. During Battery reverse condition, Battery reverse indication in Controller Card will also glow. 5. Main ON (Green Led): This will glow as long as AC input to the system is present. 6. Battery Reverse (Red Led): This will glow in Controller Card whenever Battery connection is reverse.