Constant Frequency for Uninterruptable Systems

Critical loads are becoming more common and requirements are more exacting. The "CF" systems described here give complete isolation of the load from power line or power plant transients, failures, or deteriorations. These and other features are discussed herein. 1 - Complete load voltage and frequency isolation. 2 - Prime movers used for auxiliary power can be started using normal means; battery, air, hydraulic, etc., and allowed to accelerate to rated speed normally. 3 - Most power failures can be isolated from load without starting prime mover. 4 - Systems can be installed to operate from existing auxiliary or secondary power sources. 5 - Complicated, high-speed, power failure detection systems are not required.