When the power conditions are within acceptable limits, the UPS operates as a
high efficiency, energy-saving system, providing surge protection for IT
equipment and making sure that clean power is delivered to the facility. The
energy saver system increases system efficiency up to 99% when supplying 20–
100% of nominal load, reducing energy losses by up to 80%.
3.2.2 Stored energy and battery mode
When running normally in the double conversion or ESS mode, the UPS
automatically transfers to supply the load from batteries or some other stored
energy source if a utility power outage occurs, or if the utility power does not
conform to the specified parameters. The UPS status indicated on the display is
On Battery, and the UPM status is Active. In the battery mode, the battery
provides emergency DC power, which is converted to regulated output power by
the inverter.
Figure
4
shows the path of electrical power through the UPS system when
operating in the battery mode.
Eaton 93PM UPS 30–200 kVA User's and installation guide
©
Eaton Corporation plc 2017. All rights reserved. Revision: 005 Document ID: P-164000249 23 (126)
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