Room precision air conditioning power supply where to take electricity? (Is directly take the electricity in the electricity distribution cabinet or take the UPS back-end power) or both
Air conditioning does not enter the UPS
Or you will die dead UPS
Depending on the importance of the application of the engine room, the cabinet power density and cooling the way:
If the application of the engine room is very important, the air conditioning power supply requirements will be high, you can use the mains + UPS way power supply, otherwise you can use the main power supply; if the water cooling unit can increase the capacity of the storage tank To increase the cooling of the backup time, power supply requirements can be reduced accordingly. If the power density of the cabinet is very large, and the application is very important, it is better to use UPS power supply.
I think the problem is not so simple, ordinary UPS can not give air conditioning power supply. You do not have practical significance to calculate it.
You have to pay attention to: UPS generally say how much VA is not W.
Compressor may only 1KW, but it may require 10KVA UPS to drive.
Ordinary UPS support for inductive load is poor.
Ultra-large rooms need to use generators to drive large air conditioning units, or use the mechanical UPS (that is, a flywheel).
?
Said that death is not bad, is generally all blackout, instantaneous current is too large.
to be honest:
Power = voltage * current * cos angle
The UPS provides the maximum current, but if the value of cos is only 0.1, it means that 10 times the current is required to achieve the same power. In general, all sensible and capacitive loads are not suitable for use with ordinary UPS.
