Micro-AT® Source-Transfer Control
Micro-AT® Source-Transfer Control
AT-2, AT-3, AT-12. For use in S&C Metal-Enclosed Switchgear and Source Transfer Pad-Mounted Gear
Assuring a high degree of critical-load continuity by minimizing interruptions resulting from the loss of one source
The Micro-AT Source-Transfer Control is utilized in S&C Source-Transfer Pad-Mounted Gear in conjunction with Mini-Rupter® Switches driven by stored-energy operators, to provide for automatic source transfer of common-bus primary-selective systems.
This control continuously monitors the condition of both power sources and initiates automatic switching when preferred-source voltage has been lost (or reduced to a predetermined level) for a period of time sufficient to confirm that the loss is not transient. The switch associated with the preferred source is automatically opened and the alternate-source switch is then automatically closed, restoring power to all loads.
