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  1. [SOLVED]Closed: Re: What are the names of these voltages for a 3-ph full-wave controlled rectifier?

    what you think is rusty is gold to me :)



    yep i know transformer stuff ..




    yeah this is the configuration that step the voltages from delta to star + having the neutral wire for the...
  2. [SOLVED]Closed: Re: Mains leaking currents causing problems in my house

    My appliances with 3 prong are:
    1. Ariston 3 in 1 clothes washer...
  3. [SOLVED]Closed: Re: What are the names of these voltages for a 3-ph full-wave controlled rectifier?

    This is the circuit:

    156521

    This is the solution of the example:

    156522
  4. [SOLVED]Closed: What are the names of these voltages for a 3-ph full-wave controlled rectifier?

    I ran through this chapter and reached this circuit which is fine and I solved the previous controlled 1-ph circuits' examples and I understand the parameters of the different voltages, current,...
  5. [SOLVED]Closed: Re: Mains leaking currents causing problems in my house

    Just to point another arising problem !

    With bootlegging the ground pin to neutral wire, problem with appliances that have g type plug that have 3 prong is solved.

    But I guess there have been a...
  6. [SOLVED]Closed: Re: Mains leaking currents causing problems in my house

    ha ha :) yep I know what 220V feels like :) I touched 220V on a CRT TV motherboard couple times and the power was on.

    You are right ! I've done the bootleg after assuring that I'm connecting the...
  7. [SOLVED]Closed: Re: Mains leaking currents causing problems in my house

    That's Saudi Arabia :)

    It was a dust wave went through our city couple weeks ago. But we don't have this so often, it's once in months.

    Certainly it's :grin:




    Life clean itself :) lol...
  8. [SOLVED]Closed: Re: Mains leaking currents causing problems in my house

    156215

    It turned out that the neutral is grounded :)

    I bootlegged the neutral to ground and it works fine now.
  9. [SOLVED]Closed: Re: Mains leaking currents causing problems in my house

    OK, so it could be the capacitance. Also thank you for your advice and reply to my post.

    But moving to another apartment won't be as effective because pretty much most the buildings are done in...
  10. [SOLVED]Closed: Re: Mains leaking currents causing problems in my house

    I recorded this video this morning.


    https://www.youtube.com/watch?v=zx6Hcba7n4s
  11. [SOLVED]Closed: Re: Mains leaking currents causing problems in my house

    Oh, OK; then I got your explanation about those Belkin power strips that they won't work for my problem. And thank for explaining how they work and that they contain over voltage protectors and not...
  12. [SOLVED]Closed: Re: Mains leaking currents causing problems in my house

    Which indicator ? Do you mean the one in the drawing ? That drawing is did it myself to explain my idea about the problem.



    OK, so surge protectors and RCDs are different !

    But the idea I...
  13. [SOLVED]Closed: Re: Mains leaking currents causing problems in my house

    How about this protection when doing a bootleg ?

    156053
  14. [SOLVED]Closed: Re: Mains leaking currents causing problems in my house

    You are right ! I cancelled the order, because I went through videos on YouTube and they demonstrated that these devices really don't give the required results !
    ...
  15. Closed: Re: How to choose a good university for electronics engineering in USA?

    It's a scholarship program from my organization. I don't want to cost my country a lot. I'm thinking of a good university not too difficult .. not too easy. A good place to learn a lot about embedded...
  16. [SOLVED]Closed: Re: Mains leaking currents causing problems in my house

    I just bought a plug tester from Aliexpress, it should arrive in a month or so.
  17. Closed: How to choose a good university for electronics engineering in USA?

    Hello,

    I decided to get my masters degree in electronics engineering in USA over Australia after a lot of thinking but my decision wasn't based on some actual searching, just individual opinions...
  18. [SOLVED]Closed: Re: Mains leaking currents causing problems in my house

    Yep, that's right. I called the owner and he told me that he didn't install a ground to the building.





    That's possible. My colleagues told me to do a trick to know if there's a leak when I...
  19. [SOLVED]Closed: Re: Mains leaking currents causing problems in my house

    I called the electricity company booked a ticket, they called me back. And I asked them if the mains is grounded and he told me that the outer lines ground is different then what I have inside the...
  20. [SOLVED]Closed: Re: Mains leaking currents causing problems in my house

    Yep we have quite good electricity work, the company is actually one company but a huge one running all electricity in Saudi Arabia.

    I ran by a project on the red sea which is Jeddah South Thermal...
  21. [SOLVED]Closed: Re: Mains leaking currents causing problems in my house

    Yep that's a big possibility in our district power distribution, I took these photos just now.

    155859

    155860

    155861

    155862
  22. [SOLVED]Closed: Re: Mains leaking currents causing problems in my house

    But my friend did it and it's working with him quite well !

    Because as I explained in #18, we have 3-ph and neutral as a ground for the star connection. So the neutral works as a ground and...
  23. [SOLVED]Closed: Re: Mains leaking currents causing problems in my house

    OK guys here's the story I've encountered last night.

    I asked an electrician to come and check the apartment. He told me that the entire room is powered with only 2 wires of 6mm from the main...
  24. [SOLVED]Closed: Re: Mains leaking currents causing problems in my house

    My recording this afternoon.


    https://www.youtube.com/watch?v=WrHEePXfsIQ
  25. [SOLVED]Closed: Re: Mains leaking currents causing problems in my house

    Yep, there must be a potential from the case that is +10V through my body that could like 1k ohm to the floor which is the lower potential, so yeah I'm a path for currents. And also the case actually...
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