Case Study #123 | Crisis averted: UPS battery install Mitsubishi UPS 2033D 30kVA
|Product||Mitsubishi UPS 2033D 30kVA|
|Application||Manufacturing Data Center|
|Synopsis||New client hired Nationwide Power to inspect and maintain their Mitsubishi UPS 2033D-30kVA, which provides critical power for an existing data center.|
|Preliminary Actions||Upon 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.
|Resolution||Our 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 Cause||The 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 Reading||UPS Battery Preventive Maintenance and Service|
Case StudyIn this Nationwide Power™ (NP™) case study, we highlight the importance of following your service provider’s age-based components. The most common age-based components are batteries (every 3-5 years), fans (every 5 years), capacitors (every 5-7 years), and...
Case StudyIn this Nationwide Power™ (NP™) case study, we highlight the importance of knowing what your electrical infrastructure is, and what is supported by your UPS. This case study specifically looks at the Eaton Powerware 9330-15kVA UPS. Product 9330-15kVA UPS...
Case StudyIn this Nationwide Power™ (NP™) case study, we show the importance of regularly scheduled maintenance inspections and replacements of age-based components. This case study focuses specifically on the replacement of batteries on a Best FerrUPS FE18kVA. An...