How does the poor power factor affect real power (kw)?

Encyclopedia
10/18/2024

The impact of a lower power factor on effective power (kilowatts) is mainly reflected in the following aspects:

  1. Reduce the generator's output power: When the generator needs to increase its reactive power output and operate below the rated power factor, it will result in a decrease in the generator's active power output.

  2. Increased Losses in Equipment and Lines: A lower power factor leads to increased losses in equipment and lines, indirectly affecting the transmission and utilization of effective power.

  3. Increased Line Voltage Drop: A lower power factor also leads to a greater voltage drop across lines and transformers, further affecting the efficiency of effective power transmission.

  4. Impact on Power Supply Quality: A lower power factor can lead to a decline in power supply quality, which in turn affects the effective power output of devices that rely on stable voltage and current.

  5. Increased Electricity Expenditure: Due to the additional losses and reduced equipment utilization caused by a low power factor, users may ultimately end up paying more for their electricity, even though these additional costs are not directly reflected in the measurement of effective power (kilowatts). However, they do reflect a decrease in the efficiency of utilizing effective power.

In summary, a lower power factor can affect the effective power (kilowatts) in various ways, including reducing the output capacity of generators and equipment, increasing losses, impacting power supply quality, and increasing operating costs. Therefore, maintaining a high power factor is crucial for improving the efficiency and economic benefits of the power system.


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