Minimizing Penalty In Industrial Power Consumption By Engaging Apfc Unit

Model: 59

Solderable DIY project kit for Engineering & Diploma students Worldwide

Do-It-Yourself Kit :

Includes complete hardware comprising of discrete components, modules, PCB, controller etc. and tested program code for building the project. Extensive documentation for project execution including step-by-step instructions for Circuit building, Assembly procedure and Troubleshooting. (Tool kit-Multimeter, Soldering iron and program burner not included in the kit)

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This project is adapted to reduce penalty for industrial units by implementing automatic power factor correction unit. The ratio of actual power being used in an alternating electrical circuit to the power which is apparently drawn from the line causes the angle delay ranging from zero (for a purely resistive load ,pf= 1) to a theoretical maximum of 90° (for a purely inductive load, pf=0). as the cosine of this angle is the power factor ,pf.

In an electric power system, a load with a low power factor draws more current than a load with a high power factor for the same amount of useful power transferred. The higher currents increase the energy lost in the distribution system, and require larger wires and other equipment. Because of the costs of larger equipment and wasted energy, electrical utilities will usually charge a higher penalty to industrial or commercial customers where there is a low power factor.

In this project inductor plays a major roll for developing the lag condition. Power to the circuit is fed from a step down transformer where an rectifier is used for converting AC-DC and regulated. The time lag between the zero voltage pulse and zero current pulse duly generated by suitable operational amplifier circuits in comparator mode are fed to two interrupt pins of the 8051 microcontroller. The time lag between the current and voltage are displayed on LCD which is interfaced with microcontroller. Depending upon the delay the program which has been dumped in the microcontroller brings appropriate number of relays through relay driver IC from its output to bring shunt capacitors into the load circuit to get the power factor , till it reaches nearest to unity.

Further the project can be enhanced by using thyristor control switches instead of relay control to avoid contact pitting often encountered by switching of capacitors due to high rush current.


Automatic Power Factor Correction.

Easy to use, Self-explanatory kit.

All-inclusive solution kit.

Extensive audio-visuals available.

Branding-free material.

Pre-programmed Microcontroller.

Call/mail for Tech Support from 10 am – 7 pm.

Can be Customized for Arduino, Raspberry Pi, PIC


Hardware Requirements

  • 8051 series Microcontroller
  • Voltage Regulator
  • Resistors
  • Capacitors
  • Crystal
  • Op-amps
  • Diodes
  • Shunt Capacitors
  • Relays
  • Relay driver IC
  • Choke
  • Crystal
  • Switches
  • Slide Switch
  • Transformer
  • Lamp

Software Requirements

  • Keil compiler
  • Language: Embedded C or Assembly

Q & A

Buyer Feedback

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  1. Rated 4 out of 5

    Kritika sharma

    Came to know about edgefx by searching keywords automatic power factor project in google By seeing the website it so attractive kit was delivered on time with all the components

  2. Rated 4 out of 5

    Harshil shah

    One of my friends suggested Edgefx, so directly searched Edgefx website on internet. I found the information related to my project requirement on your website and also it was assembled, so I purchased. I like the material about the instruments. I Purchased directly through online.

  3. Rated 5 out of 5

    Harshil shah

    I came to know about Edgefx through my senior. I directly typed Edgefx kits in Google.I decided to buy a kit from Edgefx by the words of my senior. And I like the complete kit.Yes the kit delivered on time with the right components.No Improvements required.

  4. Rated 4 out of 5


    Yes the kit delivered on time with the right components.No I haven’t called up for technical support.By the help of my friend I build the project.Yes I recommend about Edgefx kit because things get easy.

  5. Rated 4 out of 5

    Harshad Mahajan

    Yes, Mr. Deepak had delivered the kit on time and all the components even.It is happy that my project is submitted successfully. And all my technical queries were cleared.I directly submitted the outputted kit provided by Edgefx.Not yet given, I will refer in future.