Case Study
Case Study #108 | “Maintenance-Free” Batteries
| Product | “Maintenance-Free” VRLA Batteries |
| Application | Business Electrical Room |
| Synopsis | Customer had called for a trouble-shoot and possible shut-down of the UPS |
| Preliminary Actions | The Nationwide Power engineer was on-site to trouble-shoot a UPS unit that was in alarm, and to remove leaking/cracked batteries. |
| Resolution | The UPS was being used to power emergency lighting for 3 buildings and had been running in alarm with batteries shorting to ground for a long time. Upon arrival, the engineer found the UPS with an active rectifier alarm and concluded that the UPS needed new AC and DC capacitors, new fans, and a full battery replacement. The DC link would not return to nominal voltage with batteries being disconnected and the logic was showing other rectifier alarms, signifying potential rectifier issues or logic problems. There were also multiple battery contactor alarms active. The UPS was put into internal maintenance bypass with logic turned off until it can be replaced or repaired. The system may need to be completely replaced. |
| Root Cause | “Maintenance-Free” does not mean that the whole Uninterruptible Power Supply does not need to be maintained. To have maintenance-free batteries simply means that you do not have to add water (as with flooded cell batteries). Some might contend that you do not have to re-torque connections either, however most VRLA battery manufacturer maintenance instructions state they should be re-torqued annually. Regular inspections where voltages and ohmic readings are taken would have electrically identified the battery as trending bad prior to the battery visually indicating the swelling, cracking, and leakage. |
Nationwide Power provides 24/7/365 technical support to ensure that everything operates and transitions successfully before, during, and after any power outage.
Request a quote Call | 800-868-2780 E-Mail
We are your critical power infrastructure partner!
Latest News
Nationwide Power Honored as a Top Workplace for the Second Consecutive Year
News Article Corks are popping, and the excitement is overflowing at Nationwide Power as we celebrate a remarkable achievement. For the second year in a row, our organization has been named a Top Workplace, solidifying our position as a leader in creating a culture of...
Case Study #156 | Importance of Following Age Based Recommendations
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 Study #155 | Knowing Your Infrastructure
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...
Newsletter Signup
0 Comments