Description
In this proposed system, two zero crossing detectors are used for detecting zero crossing of voltage and current. The project is designed to minimize penalty for industrial units using automatic power factor correction unit. The micro controller used in this project belongs to 8051 family.
The time lag between the zero-voltage pulse and zero-current pulse is duly generated by suitable operational amplifier circuits in comparator mode is fed to two interrupt pins of a micro controller. The program takes over to actuate appropriate number of relays from its output to bring shunt capacitors into load circuit to get the power factor till it reaches near unity. The capacitor bank and relays are interfaced to the micro controller using a relay driver. It displays time lag between the current and voltage on an LCD. Furthermore, the project can be enhanced by using relay control to avoid contact pitting often encountered by switching of capacitors due to high in rush current.
HIGHLIGHTS
- Microcontroller used in this project belongs to 8051 family.
- The project is designed to minimize penalty for industrial units using automatic power factor correction unit.
- Zero crossing detector concept is used .
BLOCK DIAGRAM
HARDWARE REQUIREMENTS
8051 series Microcontroller,
Op-amps, LCD,
Shunt Capacitors,
Relays,
Relay driver IC,
Choke,
Crystal,
Switches,
Resistors,
Capacitors,
Diodes,
Transformer,
Voltage Regulator
Lamp
SOFTWARE REQUIREMENTS
Keil compiler
Languages: Embedded C or Assembly
Ramesh Patil, Maharastra(INDIA) –
This is best Electrical project. I ordered this project on website of Electrosal. I got this project only in two days and in good condition. Electrosal team given me a good support. Thanks Electrosal team for your support. Thanks a lot.
Bhushan Jadhav Satara(Maharashtra) –
I bought this project from ELECTROSAL. The Project is very nice.
Anil Vitkar Vijayapura(Karnataka) –
I saw this project video on youtube and desided to purchase this kit. I got this kit in time with in good condition. With the help off eplanatory video I can understand all concepts easily.
Sushma Shah Surat(Gujarat) –
packing for the extra components was not that good and I reported the issue to the Electrosal team. System worked without any issue though, hope they make sure the packing for the next orders will be better.
Jigme Lhaden Thimpu(Bhutan) –
These guys come up with new technology always, keep it up!!!
Subhashini Tate Ponda(Goa) –
Nice Project.
Sham Kshirsagar Mysuru(Karnataka) –
Nice Customer Support. Thanks For Online Video Call Support.
Omkar Patil Karad(Maharashtra) –
I have Order Do it Yourself kit of this project. The project having Oneready made kit and another one PCB and their required components. So, i have got a great Experience.
Sonal Kamat Belgaum(Karnataka) –
Yesterday i received AUTOMATIC POWER FACTOR CORRECTION USING ARDUINO project kit.. kit had all the components and parts as mentioned in component lists. Looking forward to start working on it.