https://fmlead.com/focus/technical/ Recent content in Technical on FM-Lead Hugo -- gohugo.io en-us https://fmlead.com/focus/technical/generator-load-bank-testing-for-data-centers/ https://fmlead.com/focus/technical/generator-load-bank-testing-for-data-centers/ <p><span class="tag-focus-mindset">Focus Mindset</span></p> <h2 class="relative group">Focus Mindset - Technical <div id="focus-mindset---technical" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#focus-mindset---technical" aria-label="Anchor">#</a> </span> </h2> <h2 class="relative group">Generator Load Bank Testing and SFG20 Requirements <div id="generator-load-bank-testing-and-sfg20-requirements" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#generator-load-bank-testing-and-sfg20-requirements" aria-label="Anchor">#</a> </span> </h2> <h3 class="relative group">Abstract <div id="abstract" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#abstract" aria-label="Anchor">#</a> </span> </h3> <p>Generator reliability in data centres is not a backup convenience; it is a primary risk-control function. Every UPS, battery string, and redundancy design ultimately depends on one practical question: can the standby generator start, accept load, and sustain stable operation during utility failure. This paper outlines the engineering basis of load bank testing, its alignment with SFG20 schedules, and the operational risk of treating low-load run tests as proof of resilience.</p> https://fmlead.com/focus/technical/ups-external-bypass-switch-does-not-mean-zero-downtime/ https://fmlead.com/focus/technical/ups-external-bypass-switch-does-not-mean-zero-downtime/ <p><span class="tag-focus-mindset">Focus Mindset</span></p> <h2 class="relative group">Focus Mindset - Technical <div id="focus-mindset---technical" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#focus-mindset---technical" aria-label="Anchor">#</a> </span> </h2> <h2 class="relative group">UPS External Bypass and Zero-Downtime Claims <div id="ups-external-bypass-and-zero-downtime-claims" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#ups-external-bypass-and-zero-downtime-claims" aria-label="Anchor">#</a> </span> </h2> <h3 class="relative group">Abstract <div id="abstract" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#abstract" aria-label="Anchor">#</a> </span> </h3> <p>External maintenance bypass switches are often marketed or interpreted as a direct path to zero-downtime UPS maintenance. In practice, continuity depends on transfer philosophy, control design, and execution quality. This article distinguishes make-before-break (MBB) from break-before-make (BBM) transfer behaviour and provides a practical verification framework for facility teams managing critical loads.</p>