Author Topic: AC powerfactor correction to save money  (Read 5925 times)

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Re: AC powerfactor correction to save money
« Reply #8 on: April 26, 2010, 00:28:25 am »


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Re: AC powerfactor correction to save money
« Reply #9 on: April 26, 2010, 11:44:01 am »
In a purely resistive circuit, all circuit power is dissipated by the resistor(s). Voltage and current are in phase with each other.
In a purely reactive circuit, no circuit power is dissipated by the load(s). Rather, power is alternately absorbed from and returned to the AC source. Voltage and current are 90o out of phase with each other.
In a circuit consisting of resistance and reactance mixed, there will be more power dissipated by the load(s) than returned, but some power will definitely be dissipated and some will merely be absorbed and returned. Voltage and current in such a circuit will be out of phase by a value somewhere between 0o and 90o.


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Re: AC powerfactor correction to save money
« Reply #10 on: April 26, 2010, 11:51:19 am »
This correction, of course, will not change the amount of true power consumed by the load, but it will result in a substantial reduction of apparent power, and of the total current drawn from the 240 Volt source.


http://www.ibiblio.org/kuphaldt/electricCircuits/AC/AC_11.html#02223.png

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Re: AC powerfactor correction to save money
« Reply #11 on: April 27, 2010, 16:36:48 pm »
interesting stuff

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Re: AC powerfactor correction to save money
« Reply #12 on: April 27, 2010, 16:44:01 pm »
another one

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Re: AC powerfactor correction to save money
« Reply #13 on: April 27, 2010, 16:49:06 pm »
th

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