Case Study #123 | Crisis averted: UPS battery install Mitsubishi UPS 2033D 30kVA

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ProductMitsubishi UPS 2033D 30kVA
ApplicationManufacturing Data Center
SynopsisNew client hired Nationwide Power to inspect and maintain their Mitsubishi UPS 2033D-30kVA, which provides critical power for an existing data center.
Preliminary ActionsUpon inspection, our Critical Power Professional (CPP™) found a battery cable inside the battery cabinet, where the cable’s lug eyelet had melted due to improper torquing /fastening to the battery insert by the previous service company.

If left in its current condition, the cable could have melted during an outage causing a domino-effect including breaking the string’s integrity, dumping the load, and possible risk of fire.  It could have also caused a ground fault which would have not only dumped the load, but also damaged the UPS.
ResolutionOur CPP™ team is equipped with some basic universal repair parts, and in this case a spare battery cable saved the day and was promptly replaced.  By being prepared, our CPP™ left the battery string in a condition that no longer presented a safety threat and left the UPS in proper working condition.

Ongoing and regular UPS battery inspections are recommended by a qualified Critical Power Professional™.
Root CauseThe damaged battery cable appears to be the result of negligence from the previous service provider.  This should have been identified and repaired in previous inspections and is a basic element of any quality maintenance inspection.
Additional ReadingUPS Battery Preventive Maintenance and Service

UPS Battery Case Study with Poor Maintenance

UPS Batteries with No Preventive Maintenance

Nationwide Power provides 24/7/365 technical support to ensure that everything operates and transitions successfully before, during, and after any power outage.

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