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Power Factor
Power factor is actually the factor of generated power utilized in performing useful work.
Ideally it is equal to 1, but practically it is always less than 1 as current always take time to reach at lower potential points.
The good example to understand this phenomenon is the traveling of air towards low pressure areas. Air always travels towards low pressure area but it can never reach at low pressure area in 0 seconds.
Here the potential difference (Voltage) is nothing but a pressure difference and traveling of charges (Current) is nothing but traveling of air towards low pressure area.
So from above example you can easily understand that current always lags as it flows after the application of Voltage.
Furthermore, installation of capacitor is just like forcefully flow of air using fans or blowers even no pressure difference is present.
As you know that power factor is a big issue in AC systems, it is also present in DC but only at start up. Since DC has no cycle waves so current does not lag at every cycle.
Ideally it is equal to 1, but practically it is always less than 1 as current always take time to reach at lower potential points.
The good example to understand this phenomenon is the traveling of air towards low pressure areas. Air always travels towards low pressure area but it can never reach at low pressure area in 0 seconds.
Here the potential difference (Voltage) is nothing but a pressure difference and traveling of charges (Current) is nothing but traveling of air towards low pressure area.
So from above example you can easily understand that current always lags as it flows after the application of Voltage.
Furthermore, installation of capacitor is just like forcefully flow of air using fans or blowers even no pressure difference is present.
As you know that power factor is a big issue in AC systems, it is also present in DC but only at start up. Since DC has no cycle waves so current does not lag at every cycle.
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