Saturday, 12 January 2013

SINGLE PHASE AUTOMATIC TRANSFER SWITCH WITH OVER CURRENT PROTECTION USING PIC16F877


 FEATURES:
*May add frequency sensing
  • Over current protection
  • Over voltage protection
  • Under voltage protection
Mode of Operation:
 The default source of power is the utility supply. In a situation where the utility supply voltage is below 210V or above 270V the system would start the generator and cut of the utility supply, provided that the generator voltage is also within the specified range. In a case where both sources are out of range, no power would be supplied until one of them comes into the voltage range.

The current sensor monitors the current drawn. When the current goes above 10A, the system is cut off completely, a message is displayed instructing that the fault be cleared and the reset button press afterwards.

The LCD constantly displays the Voltages of both sources, the current drawn as well as the states of both sources(whether they are on or off)

THE VARIOUS PARTS

Voltage Sensor:
 
Simple step down and rectification is used

Current Sensing:










Current is sensed using an acs712 current sensor from allegro

Power Sources:


Display Unit and Relay Driver:














Microcontroller:

Download Design files and Code here!
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Location: Kumasi, Ghana

27 comments:

  1. Unknown13 January 2013 at 01:00

    Nice design, keep it up

    ReplyDelete
  2. Unknown15 March 2013 at 19:07

    This comment has been removed by the author.

    ReplyDelete
  3. Unknown15 March 2013 at 19:09

    Hello
    Work very well. Please I need the source code
    Thank you very much
    mraq100@hotmail.com

    ReplyDelete
    Replies
    1. Unknown15 March 2013 at 19:32

      Thanks. ..
      I just emailed the files to you.
      You can also download them here.

      http://www.4shared.com/zip/QhQgIDdO/Single_phase_ats.html

      Delete
    2. Unknown28 February 2014 at 07:51

      hi can you send it to my email?

      Delete
    3. Unknown28 February 2014 at 07:52

      here is my email add janepiamoises@gmail.com

      Delete
    4. Unknown28 February 2014 at 08:11

      Okay...,,

      Delete
    5. Unknown26 March 2014 at 19:36

      Nice work.Please email me source code and complete detail of this circuit.
      hassan.najmi15@gmail.com

      Delete
    6. Unknown27 March 2014 at 07:45

      Tanx Hassan....
      I would send you the details...

      Delete
  4. Unknown28 February 2014 at 08:31

    i cant open it what will i do?

    ReplyDelete
    Replies
    1. Unknown28 February 2014 at 08:41

      you will need..

      1. WinZip or WinRAR to extract the files

      2. Proteus Virtual System Modelling (VSM) - for opening the .dsn file to simulate

      3. Great Cow BASIC (GCbasic) - to open and modify the .gcb program file and recompile if you so desire

      ---After compiling, the .hex file will be generated, which you would then load to the microcontroller in Proteus Virtual System Modelling (VSM) to run your simulation

      The links to items numbers 2 and 3 can be found under the design toolz tab on this blog...

      Delete
    2. Unknown13 March 2014 at 14:58

      hi sir, i had a problem during making of actual of this my transformer got spark and the plug burn out.. may i know what is the rating or specs of the transformer should i used? and how many power do i need? am i right 2 transformers and a 5V battery?

      Delete
    3. Unknown13 March 2014 at 15:32

      Hello, sorry for that, I can remember I had a similar problem with a transformer, and the problem was that I got my terminal wrong so I was shorting both the input and the output. I Usually pull out a transformer from an old mobile charger(Haven't taken note of the ratings though but I think some deliver from 300mA to 1A which I think is enough). The load on the xformer is very small, and unless there is some short on the secondary, I don't think the power being draw should be enough to burn it out.....

      Delete
  5. Unknown9 December 2014 at 10:37

    Hi Sir! I am making this type of project with a very little difference. Actually my project will just have to sense current and make the decision which source should be available to load. Both sources will be on at the same time. I am using PIC16F877A. Please help me.

    ReplyDelete
    Replies
    1. Unknown9 December 2014 at 14:48

      Hi Raghib,

      If u have a schematic/flowchart, it would be great to share that, so that I may better understand and help u out...

      Delete
  6. Unknown9 December 2014 at 16:36

    Sir Please can you tell me your e-mail address? so that i can share the project information there. Please also send me the source code for "SINGLE PHASE AUTOMATIC TRANSFER SWITCH WITH OVER CURRENT PROTECTION USING PIC16F877" project.
    My e-mail id: arsalan.raghib@gmail.com

    ReplyDelete
  7. Electrical Analytics and Simulations20 March 2016 at 15:50

    Hi Sir:- i am doing a project with solar,mains and generator sources. the logic is to close the relay with the following priorities. solar-mains-generator.your project will help me greatly. if you are willing please share it to me by the following email. yes42d@gmail.com

    ReplyDelete
    Replies
    1. Unknown1 April 2016 at 08:48

      Hi pls do you still need files??
      Have not been blogging for a while now. Pardon delay.

      Delete
  8. Unknown1 April 2016 at 08:15

    Nice work

    ReplyDelete
  9. Unknown1 April 2016 at 08:17

    could you please send me the project on my email vohsty@gmail.com because the download link is not working.
    Thanks in advance

    ReplyDelete
    Replies
    1. Unknown1 April 2016 at 08:43

      Hi i would look into my archive an see if i can find files for you...

      Delete
  10. Unknown25 August 2016 at 00:11

    hola soy nuevo podria enviarme el archivo del proyecto ya q me parecio interesante y me gustaria hacerlo por favor cesarserrano943@gmail.com gracias

    ReplyDelete
  11. Unknown16 November 2016 at 13:17

    hi sir, i need the source code... please send it to janarvenmindaros@yahoo.com
    thank you so much...

    ReplyDelete
  12. Unknown21 February 2017 at 02:21

    pls i need the source code nice design man
    kindly send it to
    my mail khord4eng@gmail.con

    ReplyDelete
  13. Unknown16 November 2018 at 12:41

    pls i need the source code nice design man
    kindly send it to
    my mail mh6833582@gmail.com

    ReplyDelete
  14. Unknown7 January 2020 at 16:13

    pls i need the source code nice design man
    kindly send it to
    my mail hunglee2901@gmail.com

    ReplyDelete
  15. Wilson_ZA20 December 2022 at 12:11

    WOW this is Nice!!! Please Assist with the Source Code.

    mokgethwamoabelo@gmail.com

    ReplyDelete

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