UPS Systems - Take a Look at Different Types of UPS Systems Available Today

With the disruptions in the electric power supply, electrical equipment can easily get damaged. To avoid such risk, it is advised to install a UPS system to get high-quality, reliable power flow.

With so many types of UPS in the market, people often get confused about which UPS will be the best for their requirement. In this article, we have summed up the various types UPS along with their characteristics.

Types of UPS

·         Standby UPS

These are also known as line-preferred or off-line Ups. It consists of DC/AC and AC/DC converter, static switch, battery, surge processor and a low pass filter for reducing switching frequency. The standby power supplies provide high efficiency at relatively low cost.     

 

 

                                            

It this, AC input is considered as the primary power supply. Alternatively, in case of power supply failure, battery and inverter is used as a backup source. Normally, inverter runs on standby mode. During the power failure, transfer switch automatically shift the load to the backup units.

·         Standby-Ferro UPS

It uses a special saturating transformer having multiple power connection. The primary power runs from the AC input, moves through the transformer and then goes to the output. Inverter picks up the power load only in case of power failure. Unlike normal standby UPS, specialized Ferro transformer offers certain degree control and voltage regulation over the output waveform.

These systems are known for their line filtering and reliability. As a downside, there is a decrease in efficiency if it is coupled with the certain type of computers or generators. Also, Ferro transform itself has the risk of overheating and voltage distortion.

·         Line Interactive UPS

In this, AC power inverter and battery are continuously connected with the UPS output. Battery starts charging when the inverter is operating in reverse while AC power is at normal levels. When there is a power failure, transfer switch shifts the power flow and system gets power from the battery.

As inverter is perpetually connected to the output, UPS lowers the switching transients risk and offers additional filtering. This UPS provide high efficiency and reliability at relatively low cost and small size design. 

UPS is the best technology to get critical power supply backup. There is no single UPS suitable for all types of applications, different UPS types are ideal for different application.