As the weather turns, the days grow longer and the grass greens, many have spring on their mind. Everyone knows the old saying that April showers bring May flowers, but have you considered what spring storms can mean for your continuity of electrical power?
Our true on-line, double conversion Uninterruptible Power Supply (UPS) systems are designed to protect critical loads through voltage transients, voltage instability, blackouts, brownouts, electrical noise, frequency deviation and more. But just like a vehicle, a UPS system requires regular preventive maintenance (PM) to check that everything is running smoothly. It is time to add your systems to your spring-cleaning list to ensure they are running at peak performance and ready for an outage.
Through our testing, field experience and supplier recommendations, we have developed a lifetime preventive maintenance schedule for our equipment. The schedule includes annual maintenance events, which provide system cleaning, testing, calibration, and parts replacement if identified as in need or as part of predictive replacement.
Our annual maintenance (PM1) includes, but not limited to:
- Vacuum and cleaning of asset
- Test Aux Contact and Shunt Trip circuit in the DC input Breaker by simulating Low DC Voltage Disconnect
- Test ALL alarm setpoints to ensure proper alarming and verify they are set at correct setpoints and time delays
- Calibrate all voltage and current reading on UPS with True RMS Meter
- Verify Free Running Frequency of Inverter and insure it is within +/- 2% of 60HZ to ensure proper sync reference to Bypass Source feed, if not adjust frequency
- Simulate full loss of power to the UPS (Black Plant) and make certain UPS does not transfer and maintains load
- Test Over Temperature Thermal Couples to make certain Inverter Shuts Down, seamlessly transfers to Bypass and opens DC input breaker
- Check 480 Input Voltage for balanced currents into Charger Bridge
- Verify all AC Caps are functioning by taking voltage reading across cap bank
- Test ripple current on battery to ensure less than 5% amp hour rating of battery
- Any other functional test deemed necessary by the service engineer to verify proper operation
- Provide full report for your records and our archive
Have one of our factory-trained service engineers perform a PM today so you can go into storm season with peace of mind that your system is ready to carry your load. Learn more about all of our PM services or contact us to talk to your regional service sales manager about your needs.