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The project is designed to minimize penalty for industrial units by using automatic power factor correction unit. Power factor is defined as the ratio of real power to apparent power. This definition is often mathematically represented as KW/KVA, where the numerator is the active (real) power and the denominator is the (active + reactive) or apparent power.

Reactive power is the non working power generated by the magnetic and inductive loads, to generate magnetic flux. The increase in reactive power increases the apparent power, so the power factor also decreases. Having low power factor, the industry needs more energy to meet its demand, so the efficiency decreases.

In this proposed system 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 microcontroller. It displays the time lag between the current and voltage on an LCD.

The program takes over to actuate appropriate number of relays from its output to bring shunt capacitors into the load circuit to get the power factor till it reaches near unity. The microcontroller used in the project belongs to 8051 family.

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 in rush current. 

Easy to use, Self-explanatory kit.
All-inclusive solution kit.
Extensive audio-visuals available.
Branding-free material.
Pre-programmed Microcontroller.
Automatic Power Factor Correction.
Call/mail for Tech Support from 10 am - 7 pm.
Can be Customized for Arduino, Raspberry Pi, PIC
Minimizing Penalty in Industrial Power Consumption by Engaging APFC Unit
Hardware Requirements
  • 8051 series Microcontroller
  • Op-amps
  • LCD
  • Shunt Capacitors
  • Relays
  • Relay driver IC
  • Choke
  • Crystal
  • Switches
  • Slide Switch
  • Resistors
  • Capacitors
  • Diodes
  • Transformer
  • Voltage Regulator
  • Lamp
Software Requirements
  • Keil compiler
  • Languages: Embedded C or Assembly
Q & A
Q:  Which microcontroller is used in this project?
A:  A 40 pin microcontroller from 8051 family is used in this project.
Q:  Which inductive load is used in this project?
A:  A 40 W tube choke is used in this project.
Q:  Can I replace choke by induction motor?
A:  Yes, it is possible to replace the choke by induction motor.
Q:  Why 100W bulb is used?
A:  A 100 W bulb is used to demonstrate as Linear or resistive load
Average Rating
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Showing 4 of 21 reviews Show All
harshil shah, pune on 14th November, 2015, 06:57 PM

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.

Harshil shah, Pune on 14th July, 2015, 11:52 AM

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.

Harivansh, Aligarh on 11th July, 2015, 03:28 PM

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.

Harshad Mahajan, Pune on 12th June, 2015, 05:21 PM

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.

Rating Breakdown (21 Reviews)

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Telangana, India
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