Not to be confused with an auxiliary or emergency power system, a UPS provides near instantaneous protection from input power outages via battery power [source: USAID]. Contact online >>
Not to be confused with an auxiliary or emergency power system, a UPS provides near instantaneous protection from input power outages via battery power [source: USAID].
From the power grid, a computer expects to get (in the United States) 120-volt AC power oscillating at 60 Hertz (see How Power Distribution Grids Work for more information). A computer can tolerate slight differences from this specification, but a significant deviation can cause the computer''s power supply to fail.
When shopping for a UPS system, there are indeed a lot of options. There''s the standby UPS, the line-interactive UPS, the double-conversion UPS and a wide variety of specialized variants. Choosing the right one entails a comprehensive understanding of your particular needs paired with a modest amount of UPS system knowledge.
A standby UPS runs the computer off of the normal utility power until it detects a problem. At that point, it very quickly (in 5 milliseconds or less) turns on a power inverter and runs the computer off of the UPS''s battery (see How Batteries Work for more information).
This type boasts features like basic surge protection and battery backup functionality. Standby UPS systems are far more common for home or small-business use because they tend to cost about half as much as more industrial alternatives.
Line-interactive UPS systems are more sophisticated and are generally reserved for small- and medium-sized businesses. These essential devices are designed to deal with a wider range of power issues including voltage sags and surges, without having to switch to battery power.
The driving feature of a line-interactive UPS is its ability to correct minor power fluctuations through a multi-tap variable-voltage autotransformer. For many, they strike the perfect balance between cost and performance, and they tend to be more efficient on environments where power fluctuations happen frequently.
Often referred to as a continuous UPS, double-conversion UPS systems continuously converts incoming power in real time, ensuring a consistent, uninterrupted power supply regardless of fluctuations and failures.
The result is an environment that''s completely isolated from power anomalies, which is ideal in environments that manage highly sensitive data and critical equipment.
Popular use cases include data centers, medical facilities and telecommunications infrastructure, though they''re generally recommended for the operation of all sensitive equipment, like those used in industrial settings [source: Rigby].
Uninterruptible power supply systems are indispensable tools, promising untold reliability and protecting the integrity of essential electrical equipment. Whether for home use, at the office, or in large-scale data centers, UPS systems provide a critical layer of protection for sensitive electronic equipment against unpredictable power supply anomalies.
Understanding the different types of UPS systems and their functions allows individuals and businesses to make informed decisions about their power protection strategies. With the advancements in technology, UPS systems continue to evolve, offering more efficient and reliable solutions to meet the ever-changing demands of modern electronic devices.
Across today''s highly connected and data-driven business landscape, the need for continuous, clean power cannot be overstated. Even the briefestdowntime can be devastating to an organization, regardless of its size or vertical. Theprice tag for downtimeisestimatedat $5,600 per minute,andunplanned incidents can result in equipment damage, data loss, missed opportunities and tarnished reputation.
Thankfully, anuninterruptible power system (UPS)is one of thesimplest, mostcost-effective solutions to help companies avoid the unwelcome consequences of downtime. But with severaltypes of systems available, the challenge is selectingone that best matches your needs and budget.
A UPS system is a backup solution that supplies power in the event of a utility failure. By supplying an adequate window to safely shut down sensitive equipment, a UPS helps prevent data loss and minimizes the stress of a hard shutdown on electronics.
Protecting equipment against a complete power loss isn''t the only reason you need a UPS. Depending on the UPS model, these systems also shield connected devices from common power problems and unsafe output voltage fluctuations that can damage electronics, reduce lifespan and affect performance.
A UPS works by converting AC power to DC power and storing it in a battery. Then, it converts the DC power back to AC power,running it to your building’s AC outlets.Your connected devices will continue to operate on the storedbattery power, giving you time to save your work and shut down the computer.
Essentially a battery in a box, a UPS powers the devices plugged into its AC outlets when electricity flow drops to an inadequate voltage or a complete outage occurs. In a power emergency, the UPS electrical system instantly switches to the battery to provide a continuous power source for the length of the battery, which varies by system for periods ranging from minutes to hours. Additionally, the conversion process removes most of the line noise from the AC outlet.
Depending on the size and technology of the unit, a UPScan protecta single computer up to an entire data center. Essential formission-critical environments, a UPS keeps computer systems and IT equipment safe and operational during a power loss until generators can be activated or protected devices,such as servers and network components,can be properly shut down.This helps prevent lost data while saving work-in-progress.
In addition to delivering backup power during a utility failure, UPSs also afford varying degrees of protection against other damaging power problems, including:
UPS systems are not created equal. Rather, there are three primary topologies—standby, line-interactive and online.EachUPS topologydelivers varying levels of protection against power problems, achieving the result in a unique manner while placing differing frequency demands on the battery.
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