Page 19 - Q2_2023 Rosendin Corp Newsletter

Also, around the five-year mark, battery replacements Many owners of facilities employing DRUPS units have decided to
become quite commonplace. For many years, Rosendin undergo projects to upgrade their DRUPS units or replace them

installed almost exclusively VRLA-type batteries in data center with other backup system technologies.

projects. These batteries typically have a lifetime of four to

seven years; as such, we expect that Rosendin will be doing In these projects, it is essential to have the support of

replacements of these batteries for years to come. knowledgeable electrical power engineers to properly

identify and model the system's key features and analyze

Many owners are switching from VRLA to whether the replacement solution will change any of the
lithium-ion and other battery technology types characteristics of that system.

with better reliability and longer lifespans.

Your engineering team should consider key parameters such as
Rosendin Engineering has the expertise and experience backup time, reliability, maintainability, fault-clearing capabilities,

to analyze the requirements of NFPA 855 and other motor starting capabilities, and others. Rosendin's Engineering

applicable standards, such as the International Fire Code team, specifically power and analytics engineers, have advanced

(IFC), to determine what modifications, if any, a facility knowledge and understanding of these systems.

must undergo to house different battery technologies.
Data center infrastructure becomes obsolete beyond ten

As the critical systems in a data center age further (5-to- years (10-to-20-year time frame). Power densities increase,

10-year time frame), it becomes more prudent to ensure technology requires refreshing, and equipment begins to

that regular load tests are performed to demonstrate wear out or is not serviceable due to the obsolescence of the

that critical equipment such as UPSs and generators will necessary replacement parts. At this point in a facility's life cycle,

function as expected under a heavy load. owners often seek engineering help to study and analyze how

to modernize the facility without scrapping all of the initially

It is often only possible to show this using a load bank that may or installed expensive infrastructure.
may not have been part of the facility's original design. Rosendin

Engineering can help create testing plans, including step-by-step Engineers are called upon to devise methods of increasing total
instructions, load bank connection details, pass/fail criteria, and power to the IT loads, deploying new tech, upgrading EPMS/

planning support needed to conduct these vital tests confidently. SCADA/Automation/Controls for the facility, and making informed
decisions regarding the replacements of generators, UPSs, static

Other aging systems must be replaced to regain reliability or switches, and distribution equipment.

owner confidence in these systems. Some mechanically based

mission-critical power system components, such as DRUPS (Diesel For all your data center engineering needs, please contact

Rotary Uninterruptible Power Supplies), have historically had a life Rosendin Engineering via your local engineering director or the

expectancy that has proven to be shorter than the facility's life. Engineering Helpdesk at 833.REI.ENGR. We are here to help! 
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