It can overtake you at any moment and in the blink of an eye. All it takes is a small power surge, overvoltage, power failure, or other voltage fluctuation and your equipment can be permanently damaged. Your data destroyed and your operating system files corrupted. A faulty power supply can gradually wear down your system over a long period of time until you notice – until it finally fails. One way to avoid such a disaster is to install a UPS. A UPS (uninterruptible power supply) is a power source. That contains a battery to maintain power in the event of a power failure. Most UPS devices also filter and regulate power from the grid. An uninterruptible power supply used for most electronic devices, although this article focuses primarily on use for computers.
In fact, there are three types of UPSs to choose from. Note that each manufacturer has a different design and modifications. The types are as follows:
1. standalone UPS (standby UPS).
A standby UPS is the simplest and least expensive type of UPS. This type of uninterruptible power supply gets its main power from the AC mains (i.e., your wall outlet). And automatically switches to the backup battery as soon as a voltage drop is detect. When power is restore, the UPS switches back. These UPS’s do not usually have a current regulating function, although some manufacturers include a surge protector.
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A “ferroresonant standby UPS” is an improvement on the design of a standby UPS. A ferroresonant UPS uses a ferroresonant transformer to switch from line power to battery power. This technology provides a source of stored energy that uses in a fraction of a second. While the unit switches between mains and battery power. It used to be one of the most common UPS designs, and it is still produce by some manufacturers. Today, most manufacturers have abandoned this design because they consider it inefficient, preferring “online” uninterruptible power supply for models in the 1,000 VA range or more.
2 Line-interactive UPS
The line-interactive UPS, considered by some to be the most efficient UPS, is one of the most commonly use UPS designs for computer protection today. Although some manufacturers sell line-interactive UPSs, which are nothing more than standalone UPSs with an additional controller, the basic line-interactive UPS has a bi-directional inverter/charger that is always connect to the uninterruptible power supply output and uses some of the AC current to keep the battery charge. If the input power fails, the switch shuts off the AC input power and the battery/inverter provides the output power. This allows a faster response to a power outage than stand-alone UPSs.
3. online UPS.
This design is consider a “true” UPS. Unlike other types of UPS, this one uses the battery as the primary power source and the grid as the secondary power source. When the mains power goes out, the uninterruptible power supply doesn’t have to switch from one power source to the other, it just stops charging the battery. This is similar to how laptops react to a mains outage. If there is no mains power, the battery will continue to power the system until the stored energy is use up. Because this type of UPS operates on battery power, the connected devices always receive constant current. Any surges or spikes in voltage are absorbe by the charger and not transmitted to the equipment.
These UPSs are often referred to as “double conversion UPSs” or “online double-conversion UPSs” because they convert AC power to DC power (the charger) and then have an inverter that converts the DC power back to AC power for external devices. Although this method provides a very smooth, “clean” flow of energy, much of the energy is dissipated in the form of heat. This reduces efficiency. Also, the battery is used continuously, not just during a power outage as with other uninterruptible power supply types. To counteract this disadvantage, a new concept called “delta conversion” has been developed for online UPSs.
In this design, the charger is replace by a delta converter. Instead of drawing all the energy from the battery under normal conditions, a portion of the energy is draw directly from the input grid through the delta converter. In the event of a power outage, the delta converter shuts down and the unit operates like a conventional double-conversion online uninterruptible power supply because the inverter also runs continuously on battery power.
Because online UPSs are more complex, they tend to be more expensive than standalone UPSs. They are typically use only in large and critical systems.
It is advisable to familiarize yourself with the specifications of the UPS you are considering purchasing. If you need a longer backup time, you need to buy a more powerful UPS. It should be note that buying a more powerful UPS does not always mean a longer backup time. The size and type of battery used in the uninterruptible power supply make a big difference. UPS batteries rated in Ah (amp-hours). Ah represents the amount of energy a battery can hold. This measurement can use to determine how long the battery can provide power to the equipment in which it is use. The higher the Ah value, the longer the runtime.
With uninterruptible power supply prices constantly dropping, there’s no reason to leave your computer unprotected. For details regarding uninterruptible power supply, please visit: https://upsonlinestore.com/