Application example: transfer ­solution for a data center

To keep data centers up and running, a reliable and redundant power supply is necessary. For this reason, the most common data center designs include two redundant power supplies for IT and mechanical loads. ­Switching the backup supply in and out is a critical task.

Subscribe to ABB Review

Aleksandar Grbic ABB Smart Power Bergamo, Italy, aleksandar.grbic@it.abb.com

Around one-third of data centers with N+1 architecture (ie, where there is a backup module in case one fails) experience at least one outage per year, with an average estimated cost of $900,000 per event. The most usual cause of outages – up to one-third of the total number of occurrences – is a power supply failure inside the data center premises. In the event of a power outage, reliable automatic transfer switches (ATSs) are needed to transfer the power source for both IT loads and cooling systems to the backup power supply.

ABB’s TruONE ATS is the world’s first true ATS to package all the necessary sensors, controllers, switches and operator interfaces into a single, easy-to-install device that not only simplifies the installation and significantly reduces the installation time but also maximizes the ATS reliability →01.

01 TruONE is the world’s first true ATS to package all the necessary sensors, controllers, switches and operator interfaces into a single, easy-to-install device that helps improve protection and makes installation simpler, more reliable and faster.
01 TruONE is the world’s first true ATS to package all the necessary sensors, controllers, switches and operator interfaces into a single, easy-to-install device that helps improve protection and makes installation simpler, more reliable and faster.

The TruONE ATS has the same user interface and software environment as the ABB Emax 2 smart air circuit breaker, which allows it to take advantage of the high short-circuit performance of the Emax 2 to deliver a compact and reliable solution. For the first time, Emax 2 and its intelligent protection units integrate protection features and automatic transfer switching programmable logics into one single device.

02 Advantages of the embedded ATS solution.
02 Advantages of the embedded ATS solution.

Typically, Emax 2 circuit breakers would be placed in the main power distribution board as incoming protection devices. The Emax 2vs are equipped with embedded ATS functions – eg, delayed transition (known as “open transition” in the IEC market), Main-Gen, etc. – to manage automatic switching in case of main power supply failure.

03 Solutions for chillers: TruONE ATSs are installed inside the chiller control panel to keep up the required cooling capacity in case of power outages.
03 Solutions for chillers: TruONE ATSs are installed inside the chiller control panel to keep up the required cooling capacity in case of power outages.

The fully integrated and flexible nature of the Emax 2 and TruONE combination provides a highly reliable ATS for even the most demanding data center applications →02–04

04 This example shows a typical electric distribution design for a redundant data center, with a total facility input power of 1 MW and an IT load of 550 kW.
04 This example shows a typical electric distribution design for a redundant data center, with a total facility input power of 1 MW and an IT load of 550 kW.

Links

Contact us

Downloads

Share this article

Facebook LinkedIn Twitter WhatsApp