UPS maintenance
Quarterly maintenance content (conditions do not allow for the project will be in the annual maintenance, power outage maintenance based on actual site conditions):
Input voltage, harmonic measurement records.
Output voltage harmonic measurement records.
Input current harmonic measurement records.
Output current, harmonic measurement records.
DC bus voltage values measured and recorded (conditions permitting).
DC bus ripple voltage measurement record (conditions permitting).
Own display value comparison of the measured values with the UPS (if different, records and see if you can correct the UPS model).
Each quarter before the battery discharge voltage and internal resistance of each cell is measured and recorded, draw a curve.
Quarterly battery load discharge activation (customer premise allowed).
Each board LED status records (conditions permitting).
Internal circuit boards of infrared temperature measurement (conditions permitting).
Internal cross, the DC capacitor infrared temperature measurement (conditions permitting).
The power connection terminal of the temperature is measured and recorded.
Unsatisfactory parts of the test parameters, analytical reporting, and settlement proposals.
Submit a customer service report, test the report scans and archive files, user submitted in paper and electronic document format.
Annual maintenance (or power outage maintenance):
Input voltage, harmonic measurement records.
Output voltage harmonic measurement records.
Input current harmonic measurement records.
Output current, harmonic measurement records.
DC bus voltage values measured and recorded (conditions permitting).
DC bus ripple voltage measurement record (conditions permitting).
Own display value comparison of the measured values with the UPS (if different, records and see if you can correct the UPS model).
Each quarter before the battery discharge voltage and internal resistance of each cell is measured and recorded, draw a curve.
Quarterly battery load discharge activation
Each board indicator status records
The temperature measurement of the internal circuit boards
Internal AC and DC capacitance of the line temperature measurement.
Internal input, output transformer or inductor temperature measurement.
Cooling fan vibration measurement and recording (uniaxial measuring).
Board control cable test tight.
Power cable connection terminals test tight.
Depending on the degree of equipment dust dedusting equipment, and is generally used in a positive pressure dust (Room need to have a strong exhaust system), do not have the condition only negative pressure dust (not recommended, easily lead to joint failure).
Replacing the current year maintenance maintenance problems found parts.
Submit a customer service report, test the report scans and archive files, user submitted in paper and electronic document format. Annual summary report at the same time.
Additional charges:
Power Quality Analysis: depending on the site grid situation or the customer needs, can provide the power quality analytical testing services, the hanging table test of time not less than 24 hours, not more than one week, separate to submit power quality analysis report.
: Depending on site conditions or customer demand the infrared camera, infrared camera testing services can provide the additional charges, separate submitted infrared detection reports.
Affordable services: for example, a customer site blackout need our technical personnel on-site technical support, site survey.
Safe construction
We purchased 500,000 of the sum insured accident insurance for all field service engineers.
Engineers to the site maintenance will strengthen security training.
Engineer before entering wear insulated shoes, gloves and protective glasses.
36V over voltage measurements with insulated gloves.
Entering customer field service to comply with the safety requirements of the customer site, or receive safety training specified by the customer.