What can UPS Power Solutions prevent ? Less begin with the most common-‘Brownouts’, while not a total loss of supply can also affect the normal running of installed equipment causing it to malfunction due to insufficient voltage available to their power supplies to operate correctly and possibly cause overheating.
There are other forms of line conditioning which can alleviate some of the problems caused by ‘brownouts’ and ‘spikes’ by supplying a constant voltage output to the operational equipment.
What they cannot do is to provide a supply in the event of the utility mains supply failing for even a period of time as short as 30 milliseconds. This type of break is enough for the equipment power supplies to shutdown and for the operation of the equipment to fail. So now you understand why you require Uninterruptible Power Supplies or commonly referred to as UPS Power Systems.
To overcome this problem where the equipment cannot stand a loss of supply for longer than 10 ? 15 milliseconds we have the UPS Power Solution. The type of UPS Power Solutions is entirely dependent upon the load in question.
At one end of the scale we have the home/small office user where; if the computer failed due to a malfunction caused by the utility mains the operator could lose their data, possibly without the benefit of current backup being available. UPS Power Solutions for this type of operational status would be a line interactive UPS.
During normal operation the UPS would be regulating the incoming utility mains supply, often by a transformer tap changing circuit, against ‘spikes’ and ‘brownouts’. Should the utility mains supply deviate outside the limits set in the UPS for correct regulation the UPS would switch the output to its inverter and run on battery until either the utility mains returns within the preset operating tolerance of the UPS or the battery falls to its lower safe operating limit at which point the UPS can transmit a signal to the computer telling it to carryout a controlled shutdown to prevent loss of data.
The other end of the scale would be a Data Hall where there would be multiple rows of server cabinets. In this instance the proposed UPS Power Solutions for this situation would undoubtedly be a parallel ‘double conversion’ UPS power system. The use of a ‘double conversion’ UPS system means that the inverter is on line constantly and requires no switching action as described previously. The use of a parallel system also provides greater resilience to loss of the utility mains supply, as the parallel system would be in an N+1 configuration.
Therefore, irrespective of the number of UPS power solutions required to supply the load there would always be a spare module instantaneously available in the event of either a module failing of being taken off-line for service.
UPS Power Solutions are not confined to supporting computer systems. Whenever there is a requirement for short-term power during a utility mains failure the UPS Power Solution can be the preferred answer.
In some instances the UPS power Solution can be used as a emergency supply for opening or closing electrically operated doors, in this instance there is no requirement to provide uninterruptible power just a power source in the event of losing the utility mains supply.
Equally Uninterruptible Power Supplies would be suitable for running smoke exhaust fans within a building. In the event of fire the utility mains supply will be turned off therefore the UPS Power Solution is ideal for running fans to clear the area of smoke, again the requirement is for a means of operating equipment for a finite time without the benefit of utility mains power.
The UPS Power Solution on its own is an ideal method of providing a temporary power solution in the event of a utility mains failure. Its limitation is governed by the battery autonomy and is suitable where the equipment it is supporting can be shutdown safely before the end of autonomy or where the requirement is for a short-term supply to operate vital equipment under controlled conditions.
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