UPS - Dynamic-Rotary Systems with Flywheel and Diesel Engine

The discription of the various system shows that the problems of each individual requirement will decide in favour of one or other UPS system. Computer systems with a frequency tolerances of +/- 1 % will definitely demand the use of NO-BREAK sets with static converter controlled synchronous motor drive. Space requirements are compartitively modest, as no battery equipment is needed for energy storage. These storage batteries alone would require considerable installation space, and here the size of the battery equipment will naturally depend on the power supply in connection with the transient battery operation. UPS generating sets, on the other hand, are not influenced by the time of mains failure which theoretically could last indefinitely The system with reversible machine and additional intigrated mains failure supply will be availible without extension of the installation space. Now and again, questions will arise with regard to the safty standard of such plants, in particular with a view on the performance of the heavy flywheel with possible faults or failure of the pedestal bearings.