Configuring backup power systems

摘要

More and more mission-critical installations are requiring continuous power with absolutely no interruptions. Such installations are using waterfall architectures in which multiple backup power sources are available. Bridge power describes the short-term power necessary to "bridge" from one long-term power source to another because typical standby power takes time to be brought online. The combination of both bridge and long term power generation is necessary because the cost associated with extending bridge power beyond a few minutes is high, and maintenance and reliability issues where batteries are employed may make a single "long-term bridge" prohibitive.