UPS Logbook

UPS Logbook

A UPS logbook is a structured record-keeping document that tracks UPS performance, load, battery status, and maintenance activities. It ensures system reliability, reduces downtime, and provides valuable data for troubleshooting and audits.

Sections of UPS Logbook

1. General Information

  1. UPS ID/Code: __________
  2. Location: __________
  3. Capacity (kVA/kW): __________
  4. Voltage Rating (Input/Output): __________
  5. Battery Type & Capacity (Ah/V): __________
  6. Manufacturer: __________
  7. Model Number: __________
  8. Serial Number: __________
  9. Date of Commissioning: __________

2. Daily/Shift Operational Record

Date Time Input Voltage (V) Output Voltage (V) Output Load (%) Frequency (Hz) Battery Voltage (V) Battery Current (A) Remarks

3. Battery Record

Date Battery Bank Voltage (V) Specific Gravity (if applicable) Ambient Temp (°C) Remarks

4. Maintenance Record

Date Activity Performed Parameters Checked Results/Readings Performed By Remarks
10-08-2025 Battery terminal check Tightness & corrosion Normal Technician A OK
12-08-2025 UPS fan inspection Cooling fan status Working Technician B Cleaned filters

5. Testing Record

Date Test Type Standard Used Measured Value Acceptable Value Remarks
15-07-2025 Autonomy Test IEC 62040 45 min ≥ 40 min Pass
20-07-2025 Battery Discharge Test IEEE 450 200 Ah ≥ 190 Ah Pass

6. Fault/Abnormality Record

Date Fault/Alarm Symptoms Action Taken Restored By Remarks
22-07-2025 Battery Low Alarm Alarm on panel Load shifted to bypass Technician A Battery replacement scheduled

7. Spare Parts & Consumables Record

Date Item Quantity Issued By Used For Balance Stock

8. Inspection Checklist (Weekly/Monthly/Quarterly)

  1. Input & output voltage within limits
  2. UPS alarms clear
  3. Battery connections tight
  4. Battery terminals free from corrosion
  5. Ventilation/cooling fans working properly
  6. Indicators & meters functional
  7. Battery discharge test performed
  8. UPS firmware updated (if applicable)

Importance of UPS Logbook

  1. Ensures continuous and reliable backup power.
  2. Helps monitor battery health and autonomy.
  3. Provides preventive maintenance data.
  4. Ensures compliance with safety standards.
  5. Useful for troubleshooting faults and during audits.


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