### Power Factor

#### What Is Power Factor

Power factor is the ratio of true power (or active power KW) consumed by a load to the apparent power (KVA - which is the product of voltage and current) drawn by the load.

Before and after Power Factor Correction (PFC)

Before and after Power Factor Correction (PFC)

S_{1} |
= apparent power before PFC |

S_{2} |
= apparent power after PFC |

P |
= active power |

Q_{1} |
= reactive power before PFC |

Q_{2} |
= reactive power after PFC |

Q_{c} |
= Q1-Q2 compensation power of capacitor |

j1 |
= phase angle before
PFC |

j2 |
= phase angle after
PFC |