UPS PREVENTIVE MAINTENANCE SCOPE OF WORK

Perform a complete visual inspection of the equipment including subassemblies, wiring harnesses, contacts, cables and major components. Check air filters for cleanliness. Check UPS completely for the following (if applicable):

1. Rectifier and inverter snubber boards for discoloration, burned or broken wires.
2. AC Capacitors for swelling or leaking oil.
3. DC Capacitor vent caps that have extruded more than 1/8”.
4. Measure harmonic trap filter currents.
5. Check all nuts, bolts, screws and connectors for tightness and heat discoloration.
6. Check fuses on the DC capacitor banks for continuity (if applicable).
7. With customer approval, perform operation test of the system including unit transfer, battery discharge and generator interface test.
8. Calibrate UPS system specifications.
9. Measure phase-to-phase input voltage and currents.
10. Review, clear and reset all diagnostic alarm histories, where applicable.
11. Record all input, output, and battery voltages and currents.
12. Furnish completed data sheets and report any problems found during the PM inspection.

Note 1: Preventive Maintenance usually requires a UPS shut-down to ensure electrical connection integrity.

Power Assessment

Our Electrical Audit Services

1. Power Audit (Power Quality)
2. Thermography Test
3. Air Quality Analysis
4. Harmonics Study
5. Energy Audit
6. Cooling Audit
7. Data Center Audit

Our Electrical Audit Objective

1. ENERGY SAVING
2. Identifying the areas of improvement in efficiency
3. Check for losses & minimize them
4. Identify high priority improvement area
5. Protect our clients from power dangers
6. Protect our clients from business loss & interruptions