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      Question

      How necessary is the UPS in places with extremely rare power outages?

      Answer
      According to statistics, power outages make up a smaller part of the power failures. And most of them are not such obvious problems as overvoltage, increased and lower voltage. In addition to providing the UPS with power for a long period in the absence of external power, they also provide reliable protection against unstable voltage, overload, high-frequency interference and other power failures.
      Question

      Where can I buy a suitable UPS?

      Answer
      1. Study the application areas of each UPS type.
      2. Assess the quality of electricity you need.
      3. Refine the required capacity and power of the UPS, as well as assess the capacity and power required for future expansion of the system.
      4. Select a trusted brand and vendor.
      5. Buy a UPS that meets your requirements.
      Question

      How is the power of the UPS determined?

      Answer
      The power of most available UPS sales is expressed in VA (volt-ampere); where "B" - indicates the amplitude of the voltage in volts, and "A" - the amplitude of the current in amperes. In short, the total power of the UPS is measured in volt amps. For example, a UPS with a capacity of 500 VA with an output voltage of 110 V can give a maximum current of 4.55 A, exceeding which will lead to overload. Power can also be expressed in watts (watts). In watts, the power is expressed for the rms values ​​of current and voltage, and in volts-amperes, the power is expressed for the amplitude values ​​of the current and voltage. The amplitude power is equal to the rms power, multiplied by a factor of 1.41. Amplitude power takes into account the reactivity of the load through the power factor (CM): VA × KM = Watt. There are no general criteria for estimating the power factor (CM). Acceptable is the value lying in the range from 0.6 to 0.8, while the value 0.5 indicates an ill-conceived design. This parameter should be paid attention when buying the UPS. High power factor provides more efficient and economical use of electricity.
      Question

      What are the batteries used in the UPS?

      Answer
      Most of the commercially available UPSs are equipped with maintenance-free lead-acid batteries with anhydrous liquid electrolytes. Energy is created by chemical reactions in the gel electrolyte. These batteries are easy to operate and maintain, very easily replaced.
      Question

      What is the role of ups?

      Answer

      Unstable power quality can disrupt the normal operation of the computer. In addition to supplying power when the mains voltage is lost, the UPS provides stable and high-quality power in normal conditions. It improves the quality of electricity received from the network, through regulation and filtering, as well as suppression of pulsed interference caused by lightning. UPS can be compared to an individual insurance policy that protects your computer from the risks associated with nutrition.

      Question

      How many type of UPS?

      Answer

      Answer:

      There are three types of UPS: Off-Line (backup type), On-Line (active type) and linear-interactive.

      Question

      What size UPS should I choose?

      Answer
      First, you should determine the power requirements of your equipment as follows:
      Insure that the equipment plugged into the battery power-supplied outlets does not exceed the UPS unit’s rated capacity. If rated unit capacities are exceeded, an overload condition may occur and cause the UPS unit to shut down or the circuit breaker to trip.

      If the power requirements of your equipment are listed in units other than Volt-Amps (VA), convert Watts (W) or Amps (A) into VA by doing the calculations below. Note: The below equation only calculates the maximum amount of VA that the equipment can use, not what is typically used by the equipment at any one time. Users should expect usage requirements to be approximately 60% of below value.

      Second, estimate the power requirements as follows:
      _______ Watts (W) x 2.0 =_______ VA or _______ Amps (A) x 230 = _______ VA
      Add the totals up for all pieces of equipment and multiply this total by 0.6 to calculate actual requirements. There are many factors that can affect the amount of power that your computer system will require. The total load that you will be placing on the battery-powered outlets should not exceed 80% of the unit’s capacity.
      Question

      What is specific gravity, and why does it matter?

      Answer

      Sulfuric acid is no more than chemicals dissolved into a water based solution. Pure distilled water has a specific gravity, or weight of 1.000. When we dissolve chemicals in that water, the solution becomes heavier. Battery electrolyte is a solution of water and sulfuric acid with a specific gravity of 1.265 for flooded batteries and around 1.310 for sealed (absorbed glass mat) batteries. Which means that with AGM batteries, the acid solution is 1.310 times heaver than water alone. The specific gravity can be easily measured with the use of a battery hydrometer, nothing more than a tube with a calibrated float inside. The higher the specific gravity of the solution in the tube, the higher the float will ride in the solution. Just as you are more buoyant in salt water than fresh, the salt being like the dissolved chemical in the water. With that said, as a battery becomes discharged, the dissolved chemical clings to the lead plates. When the battery is charged, it returns to the water. When this becomes hardened on the plates, it is called sulfation.

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