The Importance of a Qualified Power Supply Manufacturer Installing a UPS

A Power Supply Manufacturer Explains the Uses of a Rotary UPS

A UPS (uninterruptible power supply) is an important part of any power system as a way to provide emergency power to a load when an input power source, usually a utility main point of power, fails for any reason. These systems are critical in specific applications, such as in a hospital, where a power interruption could have catastrophic results. One specific type of UPS is a Rotary UPS. A power supply manufacturer explains what makes a Rotary UPS different from other types of UPS systems.

What is a Rotary UPS?

A Rotary UPS utilizes the inertia of a high-mass spinning flywheel to provide short term power in the event of a power loss. The flywheel acts as a buffer against potential power spikes and sags. A Rotary UPS converts Kinetic energy into electrical energy in order to power connected loads.

There are two main types of Rotary UPS designs; a rotating transformer and an induction coupling. A power supply manufacturer can help a customer determine which type of system makes the most sense for the specific application under consideration.

A rotating transformer is based on a regulated isolated rotating transformer. An induction coupling combines a diesel engine, two-speed concentrically-mounted induction coupling and an alternator.

Regardless of the selected design, a Rotary UPS usually starts at 500kVA in size and can go up to 2MVA, and sometimes even more when properly configured in a parallel operation. Because of their potential power level and associated costs involved, they are usually only used in large installations. A Rotary UPS is able to tolerate short-circuit conditions up to 17 times larger than an electronic UPS, which allows one device to completely blow a fuse and fail while other devices still continue to be powered by the Rotary UPS. A Rotary UPS is normally designed to provide a very high current output and are better able to provide an inrush current for loads like a motor startup or medical MRI equipment.

A life cycle for a Rotary UPS is much longer than an electronic UPS. Typically, a Rotary UPS can last up to 30 years and in some cases, even longer. It is, however, important that periodic downtime for maintenance and repairs of any mechanical issues that occur is scheduled regularly in order to keep the UPS running optimally and available if an emergency develops and the UPS is required for use.

How Can a Power Supply Manufacturer Help with Rotary UPS Selection?

Any time a major power installation is in the planning stage, it is important to have individuals and companies who are highly experienced and competent in the selection, installation and maintenance of high-powered electrical systems. This should include selecting a power supply manufacturer that can provide the correct level of guidance for a installation that requires a Rotary UPS.