 # Alternating Current Power Factor

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Power factor of an alternating current circuit is the ratio of true power dissipation to the apparent power dissipation in the circuit. The remaining 32 percent is reactive and has to be made up by the utility. Center For Energy And Environment Center For Energy And Environment The Power Factor Of An Ac Circuit Having Resistance R And Inductance Define Power Factor In An Ac Circuit Physics Alternating Current

### Electrical loads consuming alternating current power consume both real power and reactive power. Alternating current power factor. Here we will see what the power factor in an ac circuit is. Since the impedance angle is still a positive number we know that the circuit overall. Q factor quality factor of series resonant circuit is defined as the ratio of the voltage developed across the inductance or capacitance at resonance to the impressed voltage which is the voltage applied across r.

700 w cos 4560 1000 va. And in which form the electricity is being transferred from the power plant to the industries. Do you know what type of current flows into the wires running inside your house.

For instance a power factor of 68 percent 068 means that only 68 percent of the total current supplied is actually doing work. The power factor is cos 4560 0700. Chapter 11 power factor.

The average power of an ac circuit is called the true power of the electrical circuit and is called as power factor. The main current has been decreased from 141 amps to 9947 milliamps while the power dissipated at the load resistor remains unchanged at 119365 watts. The presence of reactive power causes the real power to be less than the apparent power and so the electric load has a power factor of less than 1.

Well most of the above mechanisms work on the principle of the alternating current. The vector sum of real and reactive power is the apparent power. Power of alternating current.

In alternating current work and especially with poly phase systems where motors are used to a considerable extent the power factor becomes of great importance as it not only affects the economy of the system and size of apparatus required but what is fully as important to the station manager. You know about the transformers. The power factor is much closer to being 1.

We use ac in our household circuits and the concept of the power consumed in an ac circuit is very interesting. The power delivered to the circuit by a dc is a result of the flow of charges or in other words the electric potential. The apparent power is then.

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