What is the distinguishing feature of a Rotary UPS in comparison to other UPS types?

The distinguishing feature of a Rotary Uninterruptible Power Supply (UPS) is that it provides backup power through rotating kinetic energy. In this system, a flywheel or rotor is mechanically spun at high speeds, storing energy in the form of kinetic energy. When there is an interruption in the main power supply, this stored energy can be rapidly converted back into electrical energy to maintain the connected load. This method is particularly effective for delivering a high level of power quality and reliability during outages, as it can provide instantaneous response times.

This feature also allows for a higher operational efficiency over prolonged usage when compared to battery-based systems, especially in environments with larger, consistent power demands. The use of kinetic energy makes Rotary UPS systems especially suitable for applications where immediate power continuity is critical, such as data centers and industrial processes.

Other options, while they may describe characteristics of different UPS types, do not capture the unique operational method of the Rotary UPS centered around the use of kinetic energy for power backup.