UPS - Uninterruptible Power Supply
An uninterruptible power supply (UPS), also known as a battery backup, provides backup power when your regular power source fails or voltage drops to an unacceptable level. A UPS allows for the safe, orderly shutdown of a computer and connected equipment. The size and design of a UPS determine how long it will supply power.
Different UPS topologies provide specific levels of power protection.
Standby is the most basic UPS topology. A standby UPS resorts to battery backup power in the event of common power problems such as a blackout, voltage sag, or voltage surge. When incoming utility power drops below or surges above safe voltage levels, the UPS switches to DC battery power and then inverts it to AC power to run connected equipment. These models are designed for consumer electronics, entry-level computers, POS systems, security systems, and other basic electronic equipment.
A line-interactive UPS incorporates technology which allows it to correct minor power fluctuations (under-voltages and over voltages) without switching to battery. This type of UPS has an autotransformer that regulates low voltages (e.g., brownouts) and over voltages (e.g., swells) without having to switch to battery. Line-interactive UPS models are typically used for consumer electronics, PCs, gaming systems, home theater electronics, network equipment, and entry-to-mid-range servers. They provide power during such events as a blackout, voltage sag, voltage surge, or over-voltage.
A double-conversion (online) UPS provides consistent, clean, and near-perfect power regardless of the condition of incoming power. This UPS converts incoming AC power to DC, and then back to AC. UPS systems with this technology operate on isolated DC power 100 percent of the time and have a zero transfer time because they never need to switch to DC power. Double-conversion UPS systems are designed to protect mission-critical IT equipment, data center installations, high-end servers, large telecom installations and storage applications, and advanced network equipment from damage caused by a power blackout, voltage sag, voltage surge, over-voltage, voltage spike, frequency noise, frequency variation, or harmonic distortion.
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F.A.Q. about UPS - Uninterruptible Power Supply
What is a UPS system?
UPS stands for an uninterruptible power supply. This means that a UPS system is designed to keep the power running at all times. For instance, load shedding will be a problem of the past with our wide variety of products and solutions keeping your business moving.
Where is a UPS used?
UPS systems can be used anywhere that needs to ensure that the power stays on. The most common applications are where power is critical to avoid infrastructure damage e.g. Data centers and manufacturing facilities.
What is the difference between a battery and a UPS?
A battery is a device that stores energy, a UPS detects when there is no longer any power coming from the mains and switches over to the UPS batteries.
Can I use a UPS for 6-7 hours?
If the power requirement is low and the UPS is overrated, possibly, but normally running a UPS for this long requires so many UPS batteries it becomes unfeasible both financially and physically. It would be best to run a standby generator alongside your UPS to achieve this.
What is the difference between a UPS and an Inverter?
The UPS and inverter both provide the backup supply to the electrical system. The major difference between the UPS and inverter is that the UPS switches from the main supply to the battery immediately, but the inverter takes much longer.
What is a non-critical load in a power system?
A non-critical load is an electrical device or devices, that aren’t key to keeping a business running or won’t be damaged by a power cut. In short, it doesn’t matter if these devices lose power in an outage.
What is backup power?
Backup power is a term that simply means, a source of power if the main power source fails. This can be anything from some AA batteries in your mains powered alarm clock to UPS system and standby generator that is connected to your data center.
What is the difference between a standby generator and a UPS system?
While both protect against a power cut, a UPS is an immediate, short term solution, provide power straight away for as long as its UPS batteries have a charge. A standby generator is a longer turn solution, that is slower to start up but will provide power for as long as it has fuel.