Climate protection needs energy efficient data centers - Stulz GmbH

UPS Output Power≥ 40 to < 200 kVAUPS Output Power≥ 200 kVAClass./1/ Class./2/ Class./3/ Class./1/ Class./2/ Class./3/25% of nominal power 86.5% 89.0% 94.0% 89.0% 91.5% 95.0%50% of nominal power 90.5% 93.0% 96.0% 92.0% 94.5% 97.0%75% of nominal power 92.0% 93.5% 96.7% 93.0% 94.5% 97.7%100% of nominal power 92.0% 93.5% 97.0% 93.0% 94.5% 98.0%Notes:Class./1/:UPS types “VFI – S.-…” according to EN62040-3Class./2/: all UPS types “VI” and “VFI” according to EN62040-3, except “VFI – S.-…”Class./3/: all UPS types “VFD” according to EN62040-3Table 7: UPS efficiency targets according to the CoC for UPS 21The stipulations for additional components with efficiency-reducingeffects should also be taken into consideration,as these effects are not always clearly recognizablein the UPS category. Voltage quality and security arecritical factors when these components are used in UPSapplications. The list currently specifies additional transformersfor UPS modules and filters for the reduction ofharmonic distortions.Normal Mode:Load according toEN62040-3Additional devices for the reduction of harmonic currentsat input better than IEC 61000-2-2, 61000-3-2 and61000-3-12The measured losses of these can be deducted from thesystem losses and shall not exceed the given values perdevice25% 0.6%50% 1.0%75% 1.6%100% 2.5%Normal Mode:Load according toEN62040-3Additional isolation transformer at input or output of thenormal mode power pathMaximum losses per transformer (in kVA)≥ 10 to < 40 ≥ 40 to < 200 ≥ 200 to < 500 ≥ 50025% of nominal transformer power 1.5% 1.0% 0.7% 0.5%50% of nominal transformer power 1.9% 1.5% 1.1% 0.7%75% of nominal transformer power 2.6% 2.0% 1.7% 1.3%100% of nominal transformer power 3.6% 3.2% 2.7% 2.0%Table 8: The influence of additional UPS components on efficiency according to CoC for UPS 2232