When the electricity or main power supply goes down, a UPS is a device that actually helps to keep computers and other electronic devices running for a particular period of time. They also give a great deal of protection against power surges which can damage your electronics.
Basically, each Vertis UPS has an inbuilt battery that becomes activated when there is a loss of electricity from the main power source. In the event that someone is actually on a computer and there is a power loss, the UPS will let them know that and they will have sufficient time in order to save their work and properly shut down the computer before the UPS’s battery runs out. Basically, when the power shuts off suddenly, the information in your computer’s RAM is immediately erased. So, with a UPS, if there are any sudden power losses or surges, the UPS intercepts it to ensure that you don’t lose your work or your computer gets damaged.
Data Center UPS
Each UPS uses a rectifier in order to change AC current into DC and also uses an inverter for the opposite conversion. Energy is also stored in flywheels or batteries in the event that there is a power failure. UPSs also have a bypass circuit which is used to route the power around the inverter and rectifier so that the IT load is properly run for generator power or other incoming electricity.
Generators are different from UPSs and they don’t keep electronics functional once the primary source of electricity has been lost. But, it should be noted that generators can provide more power for a longer time period in comparison to most UPSs. This is because UPSs use batteries to provide power.
UPSs are usually called standby designs, double-conversion, and line-interactive. However, the manufacturers actually implement these in different ways and the names that are commonly used are rather inconsistent. There is a minimum of one system that actually allows any of the modes listed above to be used. The IEC or International ElectroTechnical Commission has since started using a more appropriate naming in the IEC 62040.
Types & Features
Dual and double conversion UPS systems are VFI (voltage frequency-independent) and this is because the AC current is actually rectified into DC so that the batteries are always full and for the functioning of the inverter. The inverter is responsible for creating steady AC power so that IT devices can be functional.
In the event that the main power is cut, then the batteries should be sufficient for the inverter to run so that the IT load can continue to function. Then, when the main power returns, the rectifier will send DC current to the inverter which also helps the batteries to recharge. The inverter actually runs all of the time. The Bypass is only necessary for maintenance safety or in the event that there are any internal failures with your device. There is no break in power to your devices and VFI or vacuum fault interrupter is actually a more stable and powerful type of UPS. These systems actually synchronize the input and output frequencies but it is still frequency-independent since that synchronization isn’t necessary.
Advantages Of Using A UPS
– UPS maintenance is cheaper than maintaining a generator
– There is no delay when power is switched from the main source to the UPS
– There are different types and sizes and people can choose which ones are suitable to their needs
– Better than generators for critical instruments
Disadvantages Of Using A UPS
– Professional installation may be required
– Since UPSs use batteries, they are not sufficient for large devices or devices that require a lot of electricity