Power factor correction capacitors

This topic contains 5 replies, has 2 voices, and was last updated by John C John C 5 months, 3 weeks ago.

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  • #9263

    Branden Padilla
    Participant

    What do they do?


  • #9264
    John C
    John C
    Galco Representative

    Good morning Branden, power factor correction capacitors effectively help balance your power out. You see in an AC power system, it is possible to get what is called a phase shift between the voltage and the current and the power company will penalize you for this if gets to far out of phase, OR,,, the Power Factor is to low. A Power Factor of 1 is said to be Unity, no phase shift between voltage and the current and no KVAR (Kilo Volt Amps Reactive). Usually this low PF is caused from having many electric motors and transformers connected to the line which are Inductive loads. Capacitors are the opposite of Inductors and will bring the PF back up towards unity.
    OK?


  • #9265

    Branden Padilla
    Participant

    Can I learn more about this power factor


  • #9266
    John C
    John C
    Galco Representative

    No problem Branden, we have another post here under Galco General Questions on Power Factor if you like.
    Power Factor is a measurement of the phase shift between the Voltage and the Current in an AC power system. Apparent power is measured in KVA (Kilo Volt Amps), Reactive power is measured in KVAR (Kilo Volt Amps Reactive) and True power in KW (Kilo Watts). What happens is as the KVAR’s go up, the PF goes down from 1 (.95 .90 .80 .70 etc.). So here’s the relationship, KVA is like the total power, KVAR subtracts from KVA and the difference is the KW or True power.
    This help?


  • #9267

    Branden Padilla
    Participant

    So these capacitor bring back the power factor and no penalty?


  • #9268
    John C
    John C
    Galco Representative

    You got it


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