United Power System provides services for most manufacturing brands of Uninterruptible Power Systems.

Our factory – trained engineers are equipped to provide start – ups, inspections, remedial services, and testing of all units. We ensure a fast response time to all emergency calls. Our field engineers will arrive to your site within 4 hours of your service call to quickly restore equipment to normal operation.

Please see below for further services available:

Services Available - services-pic6

  • Preventive Maintenance
  • Installation & Decommissioning
  • Emergency Service
  • Battery Replacements
  • Load Bank Testing
  • Thermal Imaging
  • Power Quality analysis

Semi-Annual Preventative Maintenanceservices-pic2
non-intrusive - 

  • Check for Online status, (record any anomalies)
  • Perform complete visual inspection of UPS. Record any damage.
  • Record system model.
  • Record part number.
  • Record serial number.
  • Record any unit specific identifier number.
  • Record all applicable display readings.
  • Check alarm history. Record any irregular messages.
  • Check fans for proper operation.
  • Checks all lights and indicators for proper operation if applicable.
  • Verify remote status panel operation if applicable.
  • Review system performance with customer contact to address any issues and to schedule any repairs.
  • Provide inspection report, with recommendations.

Annual Preventative Maintenance Full Service - services-pic3

consists of  Semi-Annual service, plus:

  • Transfer UPS to Static (internal) Bypass. At site contacts approval.
  • Transfer Load to Maintenance Bypass. (If applicable). Follow proper operating procedures
  • Shutdown UPS to perform internal inspection.
  • Perform a complete visual inspection of all internal sub-assemblies, wiring harnesses, contactors, cables.
  • Remove covers and check the following:
  • AC/DC Capacitors for any irregularities.
  • Record part numbers and date code.
  • Check all fuses
  • Check all contacts to ensure secure connections.
  • Verify connections show no sign of discoloration.
  • Implement manufacturer field change notices, as possible.
  • If possible measure and calibrate, as necessary.
  • Measure and record phase-to-phase input, output, bypass and battery voltages and currents.
  • Perform temperature checks on all breakers, connections, and associated controls.
  • Record all high temperatures.
  • Perform all necessary calibrations.
  • Clean interior and exterior of unit.
  • Re-start UPS following proper operating procedures.
  • Place UPS online while operating in Maintenance Bypass mode to ensure UPS
    operates correctly.
  • Return to Static Bypass
  • Transfer Load to UPS Static Bypass.
  • Transfer UPS Online.
  • Perform functional system test upon customer REQUEST.
  • Check safety equipment and supplies for current amount and location.
  • Confirm proper warning/hazard labels.

Battery Maintenance Service - services-pic4

  • Perform visual inspection.
  • Check jar and cover for signs of cracking or leakage.
  • Record battery model number.
  • Record date code.
  • Record number of batteries in each string.
  • Record number of strings.
  • Perform temperature scan of each battery and record irregular readings.
  • Measure and record overall system DC and AC voltage and current levels.
  • Measure and record ambient room temperature.
  • Measure and record VDC & VAC of each jar/cell.
  • Perform conductance testing.
  • Check for corrosion on terminal post and connector.
  • Provide inspection report with recommendationsWet Cell Battery Maintenance
  • Includes  all steps above, plus …
  • Inspect electrolyte levels and record for future action.
  • Visually inspect jars, terminals, connectors, racks, and cabinets.
  • Inspect proper operation of ventilation system.
  • Check for unintentional battery grounds.