RfQ
UPS Preventive Maintenance Scheme

UPS Preventive Maintenance Scheme

Uninterruptible Power Supply Systems support a wide range of applications and their operation is often critical for companies. Based on our expertise and knowhow in energy power systems, we provide added value services in order to ensure their correct operation. In this context, we have prepared a checklist which includes all key actions in a preventive maintenance scheme for UPS. More specifically, this chechlist includes: Visual inspection of the Uninterruptible Power Supply System and its batteries Visual inspection of the UPS Check of batteries for cracking, distortion, bad connectors or leakages Visual inspection of grounding Inspection of cooling fans’ operation Electrical measurements Check and measure of voltage (input/output) L1 (L2, L3) N. Check and measure of current (input/output) L1 (L2, L3) N. Check of output frequency Inspection of loads normal distribution per phase Inspection and monitoring of system’s alarms and LEDs Calibration and inspection of thresholds points Functional assessments (By-pass mode) and inspection of switches’ correct functioning Functional testing of UPS to By-pass and maintenance by pass switch Check all switches correct functioning Alarm history recording Software update (if a new version is released) Assessment of the UPS correct temperature & ventilation Inspection and tightening of batteries’ interconnections, of DC circuit and of AC input – output cables Check and tightening of AC cables input – output Check and tightening of batteries interconnections & DC circuit using appropriate tool Inspection of electronic circuits and control cards Gradual closure of the UPS system (optical inspection, cleaning, testing) The optical inspection includes the inspection of displays and other alarms The cleaning will be done after opening the covers, using air suction device (vacuum cleaner) Batteries’ maintenance (cleaning... read more
Global Lead-Acid Battery Market Development Status

Global Lead-Acid Battery Market Development Status

The product that has the largest share of the electric storage device market The lead-acid battery has been playing an important role in the automobile and motorcycle industries for a long time. In recent years, the lead-acid battery’s applications can be seen in the markets of Uninterruptible Power Supply Systems (UPS), UPS used in communication base stations, medical equipment, and electric vehicles. Because of the early commercial applications, product maturity, and the low cost, it is still the product with the largest market in electric storage technology. Whether it is the selection, research and development of the materials, processing technology, or the battery recycling technology, the industry technology and the market have entered the mature stage. The anode material used in a lead-acid battery is lead dioxide, the cathode is lead, while the electrolyte is sulfuric acid and water, in the proportion of 1.24. In general, the voltage specifications of the lead-acid battery sold in the market are 12V, and 24V, which are assembled with multiple 2V batteries connected in a series circuit, while the capacity is dependent on the surface area of the electrode plates. When the battery is in a discharged state, the active materials of the anode and cathode react with sulfuric acid and form lead sulfate; when the discharge stops, the concentration of the sulfuric acid in the electrolyte decreases, and the resistance inside the battery increases. It is during this time, that it requires the generator in an automobile, or a motorcycle to recharge. From the perspective of the existing lead-acid battery market, the global market share of the lead-acid battery in 2010 was... read more