Tech-Wonders.com

Menu
  • Apps
  • How To
  • Gadgets
    • Mobile
  • Software
  • Technology
  • Sitemap
  • Contact Us

Tech-Wonders.com » Electrical

What is a Power Factor Meter

Power Factor Meter

The power factor meter gives the power factor (p.f) angles which is nothing but the phase angles between the voltage and the current vectors and its scale is calibrated directly in terms of cosΦ. The construction of p.f meter is of different types of which dynamo-meter type is most used for electrical lab work. Dynamo-meter type p.f meter consists of fixed coil called as current coil (CC), moving coil called as pressure coil (PC) which moves in the field produced by the current coil carrying load current.

The power factor meter is tested by using “phantom loading” in order to reduce the power loss. In this method the current coil will carry the load current and it is supplied by a low voltage supply. Rated voltage is applied to the pressure coil (PC), through a phase shifting transformer. The purpose of this arrangement is to phase shift the phase angle between the PC voltage and the current in the current coil.

Here is the formula for finding ‘% error’ at Unity Power Factor (UPF)

formula-for-finding-percentage-error-at-unity-power-factor-upf

Share
Tweet
Linkedin
Reddit
Pinterest
Email
Prev Article
Next Article

Leave a Reply

Cancel reply

Related Posts

  • DDoS Attack, Distributed Denial of Service Attack
    What is the DDoS Attack and How …
  • Digital forensics
    What is Digital Forensics?
  • @Facebook Name New Computer and Add to Your List of Trusted Devices
    @Facebook Name New Computer and Add to …
  • What is Phantom Loading
    What is Phantom Loading

Tech-Wonders.com

Technology Blog

About the Admin

RamaRaoBobby Hi there! I am RamaRao Bobby, Founder and Editor-in-Chief of
Tech-Wonders.com, Kakinada’s Top Technology Blog.

I am an avid Dog Lover and Tech Enthusiast. Read More

Recent Comments

  • Vivek Kumar on 10 Local SEO Services Tips that Deliver Better Results
  • Khushi Patel on The Ultimate Guide to Magento Hosting

Categories

Always Remain in Touch

  • Archives
  • Disclaimer
  • Privacy Policy
  • Featured Comments
Copyright © 2021 Tech-Wonders.com