UNINTERRUPTIBLE POWER SUPPLY FIELD INSTALLATION CHECK LIST
VISUAL AND MECHANICAL INSPECTION
Yes
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No
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1. All components have been checked against one-line diagram and have been signed off by all agencies.
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2. Safety equipment in place and serviceable per standards.
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3. All power and control wiring tested, marked, color coded and properly phased (AC/DC circuits).
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4. HVAC checked out, operational and on.
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5. All cabinets, enclosures and rooms clean.
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6. Replacement power and control fuses, control boards available for both inverter and rectifier.
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7. Normal power is available for start-up and commissioning.
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8. All vendor (manufacturer) manuals and factory test documents are available.
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9. Batteries tested per Manufacturers instructions.
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ELECTRICAL INSPECTION
Yes
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No
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1. UPS start-up procedure approved and available.
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2. Verify inverter check-out by vendor Representative.
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3. Witness and verify output wave forms are correct.
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4. Witness and verify output voltage is set and correct.
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5. Witness and verify all alarm functions.
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6. Witness and verify static switch function.
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7. Verify operation of manual bypass switch.
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8. Verify all voltmeters/ammeters are calibrated and correct.
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9. Insure Operations has sufficient operator training on UPS system.
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Electrical Function Testing
Equipment Required
Digital Voltmeter (DVM)
Spectrum Analyzer to 10 Khz
Multi-amp tester
Dual trace Oscilloscope, (ungrounded plug)
1. UPS on line and unloaded.
Yes
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No
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a. Connect Oscilloscope and DVM to UPS output, compare reading to the installed output meter.
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b. Take Polaroid photo or draw wave form and compare wave form of output to vendor illustration.
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c. Make adjustments per vendor instruction manual if required.
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2. UPS on line and loaded.
Yes
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No
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a. Repeat steps a, b, and c in (1) above.
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b. Switch “off” Primary feed, monitor Oscilloscope for switching transients, voltage level, and wave from purity.
Make adjustments per static switch vendor instruction manual if required. |
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c. Reinitialize UPS inverter per vendor manual, check synchronization indicator and time to synchronize
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d. Perform vendor under voltage and over-current switching checks, using multi-amp test set. Monitor the UPS output with DVM and Oscilloscope. Adjust if necessary.
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e. Connect Spectrum Analyzer to UPS output. Set to 7th harmonic and log vertical scale. Calculate the amplitude of each harmonic. If harmonic amplitudes exceed 4% corrections must be made.
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f. Remove Primary and Alternate power supplies and monitor UPS output. Repower the system with Primary and Alternate power supplies when the output amplitude starts decreasing.
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What a information of un-ambiguity and preserveness of valuable know-how on the topic of unexpected emotions.|