Kva understanding the importance of real power. Thats because apcs back ups units output power when on battery as a modified sine wave rather than a true sine wave.
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Your computer uses a power supply that utilizes active power factor correction active pfc to improve efficiency.
Power factor correction ups. Ups power factor a problem with the combination of a double conversion ups and a generator is the voltage distortion created by the ups. Perfect power factor which in this case is being achieved by the computers pfc power supply is 10 unity meaning 100 of the power is being used for useful work. Harmonics from 0 to 100 over 4 levels.
In short if you send a high end psu the current created by a lower end ups the psus built in power factor correction hates it and cuts power to the pc immediately. Apcpower factor correction fluegeman advises computer users and their consultants. Pfc41 pfc42 pfc43 and pfc44.
Power supplies with active pfc may experience incompatibility problems with a ups that does not provide pure sine wave power output when the power supply switches from ac power to ups battery power. The input of a double conversion ups is for the most part a large rectifier. This type of issue can occur as youve described and turn the ups off based on the type of fault it is.
Reactive power is the power stored and released by the capacitors and inductors of a device. A power factor correction fault exists error message on the ups that would require a replacement unfortunately. Pfc is the acronym for power factor correction or power factor controller.
While reactive power is useless to an electronic device. A high power factor signals maximum use of electrical power while a low power factor leads to purchasing more power to obtain the same load kw which you pay for in various ways on your utility bill. It minimizes the amount of reactive power produced by computers.
If a ups becomes more than 90 loaded in todays dynamic computer operations then most installed ups systems may be in jeopardy of overloading kw vs. Power factor correction system from 175 to 900 kvar power from 175 to 900 kvar. These benefits include power factor correction poor power factor penalty utility bill reductions voltage support release of system capacity and reduced system losses.
Power factor correction is a circuit design technique to increase the power factor of a device so that it approaches 1 or unity power factor. Assuming it is a standard serverit equipment load and not something that this ups is not designed for motor microscope laser printer etc itd be a fault specifically the ups.
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