Calculate Total Battery Energy
The total energy stored in the UPS battery, measured in Watt-hours (Wh), is calculated by multiplying the battery's capacity in Ampere-hours (Ah) by its voltage in Volts (V).
The formula is:
\( \text{Energy (Wh)} = \text{Capacity (Ah)} \times \text{Voltage (V)} \)
Given:
- Capacity = 150 Ah
- Voltage = 12 V
Calculation:
\( \text{Energy} = 150 \, \text{Ah} \times 12 \, \text{V} = 1800 \, \text{Wh} \)
The total energy stored in the battery is 1800 Wh.
Calculate UPS Backup Time
The backup time of the UPS is determined by dividing the total energy stored in the battery (in Wh) by the power consumed by the load (in W).
The formula is:
\( \text{Backup Time (h)} = \frac{\text{Total Energy (Wh)}}{\text{Load Power (W)}} \)
Given:
- Total Energy = 1800 Wh
- Load Power = 150 W
Calculation:
\( \text{Backup Time} = \frac{1800 \, \text{Wh}}{150 \, \text{W}} = 12 \, \text{h} \)
Therefore, the backup time of the UPS is 12 hours.
Similar Questions
In a mercury cell, zinc-mercury amalgam is used as an anode and carbon is used as a cathode. A paste of _______ is used as an electrolyte.
Which one of the following is not a rechargeable dry cell?
- In which part of a cell does oxidation take place?
- Trickle charging of a storage battery helps to:
- An alkaline cell is discharged at a steady current of 4A for 12 hours. To restore it to its original state of charge, a steady current of 3A for 20 hours is required. Calculate Ah efficiency.
- The positive plates of nickel iron cell are made up of:
- Which of the following material is used for negative pole of a dry cell?
- Dry cell E.M.F Value is approximately________.
- In general, battery capacity is written in ______.
- Four cells of emf 1.5 V each are connected in parallel combination of cells. Then the output voltage of the parallel combination is
Important Questions from Cells and Batteries
- To significantly increase the maximum continuous discharge current (C-rate) a lithium-ion battery pack can safely supply, while maintaining its nominal voltage, which of the following architectural design modifications is most effective?
Which of the following statement is correct for primary cell with regards to secondary cell?
Which of the following is not a primary cell?
In dry cells, free electrons are released at:
The most common used primary cell is :
