The La Marche Model A77 Series Battery Charger is engineered for the demanding requirements of Switchgear, Process Control, Oil Exploration and other critical DC power applications
The A77 Charger series now offers new features that help track the health and status of the DC system and predict an issue before it’s too late. With its industry leading, time and event based, data-log capabilities on a removable SD card, the A77 provides the user the ability to monitor long term health of the system, keep record of the DC system’s parameters and assist during trouble-shooting. This record keeping capability also helps the user in complying with NERC PRC and other PM regulations.
This charger series performs a periodic battery continuity test in order to verify the connection of the battery in the DC system. This charger series not only monitors the battery temperature and interfaces with battery Electrolyte sensors and Hydrogen detectors, but it also reacts to those parameters and adjusts the charging characteristics accordingly. Besides monitoring key elements, the A77 is also responsive to faults caused by internal operation, SCR failure, equipment over-temperature, charging and DC systems ground faults.
A77 Chargers allows the user to remotely monitor the system via advanced communication protocols to receive alarms and status notification of the condition of the system. This charger series supports DNP3, Modbus, IEC 61850, Profi-Bus and SNMP communication protocols. The communication interface in the A77 charger complies with high communications security protocols in accordance with NERC CIP requirments.