Re: AC protection equipment for enginner



On 11 May 2005 21:11:16 -0700, the renowned "eeh"
<eehobbyist@xxxxxxxxxxxx> wrote:

>Hi,
>
>Recently I need to control Triac by MCU. I wonder if there exists some
>protection equipments to develop these kind of embedded system such as
>current limiting of main AC as I am just a beginner.
>
>Thanks!

You can put a light bulb in series with the circuit.

BUT the most important thing is to use an isolation transformer! This
is at no time more important than if your circuit does not have
isolation itself. You leave both sides of the AC power on the other
side of the isolation transformer floating wrt ground. Otherwise a
single point fault can take out your circuit, any emulators and other
expensive equipment that you're using, and perhaps even computers that
are connected to it. It could also give you a nasty (perhaps fatal)
shock much more easily.


Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@xxxxxxxxxxxx Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com
.



Relevant Pages

  • Re: 8051 does not oscillate
    ... I have made a circuit for remote switching of or on a motor using ... PCB it still fails. ... Need to learn how to apply control theory in your embedded system? ... "Applied Control Theory for Embedded Systems" by Tim Wescott ...
    (sci.electronics.basics)
  • Re: Circuit with two poles?
    ... circuit matches theory exactly. ... Need to learn how to apply control theory in your embedded system? ... "Applied Control Theory for Embedded Systems" by Tim Wescott ...
    (comp.dsp)
  • Re: Circuit with two poles?
    ... just two poles. ... Is it possible to build such a circuit using just RLC ... Need to learn how to apply control theory in your embedded system? ... "Applied Control Theory for Embedded Systems" by Tim Wescott ...
    (comp.dsp)
  • Re: AC protection equipment for enginner
    ... > protection equipments to develop these kind of embedded system such as ... will limit current to a level that the mains fuse would not blow. ... Use a variable transformer to ramp up the voltage slowly, ...
    (sci.electronics.design)
  • AC protection equipment for enginner
    ... Recently I need to control Triac by MCU. ... protection equipments to develop these kind of embedded system such as ... current limiting of main AC as I am just a beginner. ...
    (sci.electronics.design)