How to Maintain and Service UPS Inverters?

As the central part of renewable energy technology, the efficient working of Uninterruptible Power Supply (UPS) inverters is essential to ensure the energy protection of critical power loads. However, with long-term use, UPS inverters may experience performance degradation or failures due to multiple factors. 

Therefore, regular maintenance and service of UPS inverters are essential. In this article, we will offer a complete guide to the maintenance and service of UPS inverters by highlighting required daily, weekly, monthly, and annual inspections, processes, reports, and records. So, let's dive in! 

Maintenance and Service of the UPS Inverters

To ensure the reliable functioning of UPS systems, Innotinum provides a complete guide for routine maintenance and services of UPS inverters below. 

Perform Daily Inspection

Try to perform daily inspection of your inverter system by mainly focusing on the following factors;

1.Check Temperature

Inspect your UPS battery system by checking the temperature to avoid overheating.

2.Analyse the UPS Display Control Panel

Ensure that all the graphical display units on the LCD panel are functioning normally. Confirm that all the energy operation parameters are within the optimal range. Further, check the display records for any damage or alarming information. 

3.Checking Noise

Check if the inverter or isolation transformer is producing any unusual noise. Unusual hissing noise may indicate inter-winding insulation or poor contact errors. Low-frequency buzzing sounds indicate a problem in transformer magnetization. 

4.Load and Battery Backup Period

Monitor the load carried by the UPS inverter and whether there is any alteration in the battery backup period. If there are alterations, inspect for new loads, their current working status, and any other unknown damage. 

5.Check Filter Capacitor

If the UPS inverter's voltage exceeds usual, check if the filter capacitor is untouched. 

6.Monitor Fan and Filter

Determine that the exhaust fan filter on the cabinet is free of any barrier. 

Recording all your inspection results and monitoring any notable variation from regular operation will be best. If conditions allow, you can do this daily inspection. But if you don't have time, you can also analyse your UPS inverter weekly. 

Perform Weekly Inspection

Every week, conduct the following inspections on the UPS display control panel and record all the results;

1.Battery Charging Current

Calculate and record the battery charging current Weekly. 

2.Battery Float Charge Voltage

Evaluate and record the battery pack's float charge voltage. Users integrate the battery pack into a 220V DC system for power plants, so observe the performance of the blocking diodes. 

3.UPS Inverter Input and Output Voltage  

Calculate and record the input and output voltage in the inverter.

4.UPS Input and Output Line Current

Furthermore, remember to calculate and record the current of the UPS inverter input and output line.

Now, compare all your results with the parameters on the panel system. If you observe a significant difference between measured and previous records, determine and document any new loads, such as size, installing area, or type, integrated into UPS output or eliminated from the user's load bus. 

If notable changes are observed in the past calculated power operations parameters without any observable reason, contact Innotinum for technical support. 

Yearly Inspection

Conduct thorough annual maintenance and servicing of the UPS inverter. The yearly inspection usually comes with high-voltage features and should be performed by professionals. Annual inspections start with the weekly inspection steps and then lead to the following;

1.Shutdown Operation

Curt off the external AC power input switch and the battery pack input switch. Ensure that the UPS is completely shut down before proceeding with the next process. 

2.Internal Observation

Open the safety door of the UPS cabinet and observe the internal parts for any problem. Focus on monitoring the electrolytic capacitors, connections, all power fusses, cables, terminals, inductors, transformer coils, and printed circuit boards for any alarming indication.

3.Do Required Cleaning

Now, use a vacuum cleaner to clean all internal parts of the UPS or deploy a blower with low-pressure air to eliminate any dust or debris. 

Switch Back UPS Inverter

Now follow the expected step to switch back the UPS inverter and turn on the power mode. Locate the UPS under load operation to analyse whether the battery backup time is within a specific range. 

By following proper daily, weekly, monthly, and annual inspection measures, you can easily ensure the safety and efficiency of your UPS inverter. It will also prevent your system from potential losses and aid you in identifying and addressing them promptly. 

Few Safety Precautions for UPS Inverter

Don't just trust in memory. Follow the user's manual guide. Such guidelines should offer safety precautions. If your user's manual restricts the maintenance the user can offer, follow the manual instructions unless general instructions are delivered with additional guidance. 

Physical troubleshooting or maintenance should not be conducted by personnal aid on the UPS inverter system operating personnel. Personnel not instructed in UPS maintenance must restrict their efforts to figure out the symptoms of a fault. Always be aware of damage, as voltages within the UPS models and integrated switch gears are scary. 

Plus, it's highly important to source the inverters from authentic and trustworthy manufacturers for long life span and reliable performance. Innotinum is one of the best manufacturing companies that have been offering its cutting-edge renewable energy technology, including batteries and inverters, to consumers for years. Their energy solution comes with the best performance and ensures affordability and sustainability. So get help from Innotinum. 

Bottom Line

In short, UPS inverter maintenance and service are highly important for ensuring their continuous and efficient operation. UPS inverters and services can be effectively maintained by developing maintenance plans and schedules, executing these maintenance steps, and establishing records. 

Furthermore, attention should be paid to environmental requirements and consumption precautions of UPS inverters to ensure their proper functioning and extend their life span. In case of any damage, you can contact Innotinum. They offer 24/7 support.