Phase Sequence Checker For Three Phase Supply

Model: 254

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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The forecast is destined to pattern for the sequence of the 3 phase supply. It is very significant to know the phase sequence primarily for 3-phase motors. For example, if a 3-phase motor is used for pumping, in which any phase reversal unintentionally ensuing in wrong sequence could force the motor to run in a wrong direction, which could lead to the dry run of the motor that may progresses to a permanent damage.

A voltage drop arrangement is made wherein a direct 3-phase AC supply of 50/ 50Hz,rectified is fed through after duly stabilized by zennor diodes to a logic circuit comprising of NAND gates and OR gates to perceive the proper sequence of RYB by a series of pulses of fixed duration. In the event of changing the progression from RYB to, for instance, YBR during the fixed-time duration the combination of NAND and OR gates develops an output with a missing pulse. For triggering an input signal to 8051 series microcontroller, this missing pulse is fed through a timer to drive LEDs placed in a circle from the out put of the microcontroller. During the proper sequence, the LEDs are made to run clockwise by the program as there is no triggering received. In the absence of a sequence, the triggering is done and will be indicated by LEDs running clockwise for some time, and then anti-clockwise for the next time, and so on indicating out of synchronization.

The DC which is required for the circuit is supplied from a Step-down transformer. A bridge rectifier is interfaced to convert AC to DC and to regulate the generated power for the functioning of the components that are implanted in the circuit with regulators and filter capacitors.

Fostering this envisions can be heightened by implementing a relay to the circuit for cutting off to the supply to load.


All-inclusive solution kit.

Extensive audio-visuals available.

Branding-free material.


Easy to use, Self-explanatory kit..

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

Can be Customized for Arduino, Raspberry Pi, PIC


Hardware Requirements

  • Voltage Regulator
  • Resistors
  • Capacitors
  • LED
  • Transformer
  • Diodes
  • NAND Gate
  • OR Gate
  • 555 Timer

Software Requirements

  • Keil compiler
  • Language: Embedded C or Assembly

Q & A

Buyer Feedback

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  1. Rated out of 5


    The Project is really amazing the company produces good standard product. I can’t wait to buy more projects which will improve my knowledge & skills. I am willing to learn more about design & knowing how certainly works.

  2. Rated 4 out of 5

    Ranbir Singh Dadhiyala

    He said he got to know about edgefx through google. And he said he has used the keyword Electronic project. I have decided to buy project from edgefx because i like the presentation of kit. I have decided to buy project from edgefx because i like the presentation of kit. And the,customer support team has helped me in purchasing the project & too kit was delivered in time with right components.

  3. Rated 3 out of 5

    Shridhar rawool

    I got to know about edgefx through google. I was searching my project title in google then i got to know about edgefx.. I have decided to buy project from edgefx because i found my project which is similar to edgefx project that is why i have purchased project from edgefx. I like the kit presentation. the kit was delivered in time with right components. i have a called to a person the number which is given in the website. i want to give reference to my juniors.

  4. Rated 5 out of 5

    Akash tewari

    I searched for the words like Phase Sequence Checker for Three Phase Supply and find in Edgefx in Google. I found this project Title so decided to buy that project from Edgefx. I purchase through online

  5. Rated 5 out of 5

    Ravin Sanjay Chikhalikar

    I come to know about Edgefx through Internet. I decided to buy a project from Edgefx because by seeing the website it is really attractive and requirement of my project is available here. I purchased through online.