Computers

A UPS or an uninterruptible power supply is basically a device that provides a continuous supply of power to any gadget that is attached to it. In a condition where the original source of electricity is inaccessible, UPS provide power from another source thereby allowing you to continue with your work undisturbed. It is actually a back up power source that connects to a device and in case of an emergency, supplies the required power to the connected equipment, for example a computer.

This kind of an UPS absorbs energy from the original source, changes it to AC power and stocks it for use when there is a power failure. Although uninterrupted power supplies are much like a generator, they have their differences and must not be mistaken for a standby generator. The major difference between the two is that while standby generators cannot provide instant protection from a power cut, UPS automatically switch over to the back up source for immediate relief from a utility failure. However, a UPS can provide protection for a limited amount of time say about 5 - 15 minutes.

Uninterruptible power supplies, though useful for many electrical devices, are mainly used for computers, which in todays world are the life blood of our society because they are required practically everywhere starting from home, hospitals, banks, schools, universities, airports and every business organisation that exists on earth. However, these equipments are vulnerable if they do not have a back up source of energy to keep them running in case of a power cut. Therefore you must have a UPS, to support your precious computer.

The back up energy in the UPS gives you enough time to save your important documents or any other data that you may have been working on. Generators would have been of no use in such a situation because they take several minutes to start, by which time your essential data would be lost for ever. If you wish to continue having an UPS, you can use a back up generator to provide this energy source to the UPS. They can work hand in hand to give you an uninterrupted power supply until the original utility power is restored.

There are a number of discrepancies in power that the UPS are capable of modifying or amending. These include a normal power failure, voltage sag, over voltage, under voltage, voltage spike, voltage sag, frequency variation, harmonic distortion, line noise and switching transient. According to these various problems, UPS are grouped into different categories so that consumers are able to buy them as per their requirement.

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