Role of UPS System in Critical Data Centers

The data center UPS system is one piece of equipment every data center uses to make sure the servers and all sensitive pieces of computing equipment are never susceptible to power line disturbances and power quality issues.

Today, the world is noticing an improvement in the use of cloud computing, and being connected to the Internet at all times is the norm. People walk around with smartphones that are constantly connected to the internet. Binging all seasons of streaming programs has become the preferred way of viewing television. There are so many popular applications of the cloud that we can’t list all of them here. But there’s one thing for certain. All of this use of the internet and the cloud needs an extraordinary amount of computing space and infrastructure, which becomes the responsibility of the data center. The data center is at the core of the internet. To ensure that this information is available 100% of the time, the data centers are designed for excellent reliability. And UPS system, undeniably, is one aspect that any data center prioritizes.

UPS power supply also ascertains business continuity by ensuring servers and other critical computer equipment are never vulnerable to power line disruptions and power quality issues.

Data center systems and DC power supplies

Computing devices such as servers and routers all rely on an internal power supply to provide the regulated DC power required to run the processors and peripheral equipment. These power supplies can only control a certain variance in supply voltage before the computing devices become susceptible to shut-down or overload.
Components of uninterruptible power supplies

There are different types of uninterruptible power supplies, which will be defined below, but all UPS systems will make use of the following components.


The rectifier converts the input AC power into DC power. This DC power will be used to provide an energy storage system.

Energy storage

Every UPS system will use some kind of system for storing energy in case of input power failure. This energy may be stored in the form of batteries, flywheels, or super-capacitors and is what allows a UPS to supply uninterrupted power.


The inverter converts the DC power from the rectifier or the energy storage system into the load’s required AC power.
Types of uninterruptible power supplies

Standby Offline

The standby UPS has two modes. During the normal performance, the input power is fed directly to the output load with no filtering. A solid-state switch is used to transfer the load to the battery source when power loss is identified.


Similar to a standby UPS system but can adjust the output in response to over and under voltage scenarios without switching to a battery. A solid-state switch is used to transfer the load to the battery source when power loss is detected.

Online Double Conversion

An online UPS makes use of double-conversion power electronics. In this topology, the battery system is constantly connected and does not require switching to the backup source. Normal performance power flow is through the rectifier, charging of the energy storage system, and through the inverter.

Critical data centers will typically make use of online double-conversion UPS systems. We already know the data center UPS system online will have a rectifier, an energy storage system, and an inverter. To further enhance the reliability of the system, an internal automatic static transfer switch will also be added to enable transfer to a bypass source. The transfer will automatically happen if there is an obstacle or fault detected within the UPS.
Data center UPS system in Malaysia also makes use of an external maintenance bypass. This is a piece of switchgear that enables manual transferring of the critical load from the UPS to a bypass power source. Manually transferring to the external bypass source allows power to be fully removed to allow safe maintenance work inside the UPS.

UPS systems are a core component of mission-critical data center infrastructures. At Right Power Technology, we understand the risks associated with downtime in data centers, both to your finances and your reputation. Our UPS systems integrate seamlessly into data centers to produce steady, efficient power, even if your primary supply goes down. As technology advances, so does the demand for uninterrupted power supplies. While there has been great progress in the power grid, there are still vulnerabilities that allow for interruptions and fluctuations in flow.

As more users rely on higher levels of uptime, extended power is required to serve them; a backup data center power supply requires to be responsive, powerful, scalable, and energy- and cost-efficient. Any fluctuation in performance can have a large impact on a data center provider, which is why we’ve created dynamic, scalable data center UPS systems designed to give the right amount of power within milliseconds of power loss. Right Power Technology, founded in 2000, is a pioneer in developing and manufacturing advanced UPS systems and solutions. Right Power Technology now has the superior distinction of being a significant player in the industry, education, and commercial fields. To know more about us, visit our official website