Modular Redundant Power Supply Systems
Extremely high overall reliability results from connecting two power sources so that one will continue to provide power to their load even if the other becomes inoperative. Redundancy may be restored by replacing or repairing the inoperative source while the system remains in operation. A redundant power system should be used whenever the highest attainable reliability is essential, as in communications, computer systems (data storage in particular), process controls, utility and municipal systems, and security/safety systems.
