Grid Tie Inverter Project

[Jim Rojas]

Get what "off my chest"???

How is it, that when you go off on an "off-topic" rant proselytizing
your religious beliefs in one post, you can chide someone for being
"off-topic" in responding to YOUR rant with your next post???

I'm not worried about your chest, but have you had a CAT scan
lately???

Curbie

I have no religious beliefs...I am in my own world...

Jim Rojas

 

[Josepi]

I hear there is free energy from CAT scans if you wind a coil around the
hospital with 4/0 copper and more than 2000 turns.


Curbie wrote:
I'm not worried about your chest, but have you had a CAT scan lately???
Curbie

 

[Josepi]

Yeah, now let's get his face butned off so he can't post from the burn unit
at the hospital.



I think I understand it. Move the upper N to L2??

 

[Jim Rojas]

Yeah, now let's get his face butned off so he can't post from the burn unit
at the hospital.



I think I understand it. Move the upper N to L2??

At least he understands it Josepi...which is what I was looking for, an
objective opinion. You could have easily done the same thing. It's still
not too late. You will find that I do not hold any grudges. Many of my
closest friends come across as a little looney when I first met them...

Jim Rojas

 

[daestrom]

The single phase 110v connection works fine. Instead of criticizing, why
not help with trying to get the 220v connection resolved?

Afterall, newsgroups were created so we can share ideas. Just ignore the
post if you do not care to help. What's the worst that can happen with
this circuit? A few blown fuses or a couple of devices fry?

Use your expertise to help, not hinder and belittle those trying to do a
worthwhile project.

*IF* the 110V version 'works', then consider this:

Because the upper and lower circuit are connected to each 110V supply as
they are, the positive peak on L1 (with respect to the N of the upper
ckt) occurs at the same moment that the N of the lower circuit is also
positive (with respect to L2).

So when the Q2 of the upper ckt is conducting, so is the Q2 of the lower
ckt. That connects L1 of the upper ckt to the N of the lower ckt.
Similarly, when Q3 is conducting in the upper ckt, so is Q3 of the lower
ckt, connecting the N of the upper ckt with L2 of the lower ckt.

Finally, remember that N of the upper ckt is connected to the same
neutral bus in the service panel as the N of the lower ckt. So when
both Q3's are conducting you have a direct short from L2 to N and when
the two Q2's are both conducting, you have a direct short from L1 to N.
Fuses F2 and/or F3 will blow when this occurs.

Rather than trying to get two 110V ckts working side by side (with no
isolation between them), it would be easier to get one 220V ckt working.

But as some others have pointed out, I think you need a lot more than
what you've shown here to have a useful grid-tie inverter.

daestrom

 

[Jim Rojas]

*IF* the 110V version 'works', then consider this:

Because the upper and lower circuit are connected to each 110V supply as
they are, the positive peak on L1 (with respect to the N of the upper
ckt) occurs at the same moment that the N of the lower circuit is also
positive (with respect to L2).

So when the Q2 of the upper ckt is conducting, so is the Q2 of the lower
ckt. That connects L1 of the upper ckt to the N of the lower ckt.
Similarly, when Q3 is conducting in the upper ckt, so is Q3 of the lower
ckt, connecting the N of the upper ckt with L2 of the lower ckt.

Finally, remember that N of the upper ckt is connected to the same
neutral bus in the service panel as the N of the lower ckt. So when both
Q3's are conducting you have a direct short from L2 to N and when the
two Q2's are both conducting, you have a direct short from L1 to N.
Fuses F2 and/or F3 will blow when this occurs.

Rather than trying to get two 110V ckts working side by side (with no
isolation between them), it would be easier to get one 220V ckt working.

But as some others have pointed out, I think you need a lot more than
what you've shown here to have a useful grid-tie inverter.

daestrom

Thank you for your input. It is great appreciated.

Jim Rojas

 

[you]

I have no religious beliefs...I am in my own world...

Jim Rojas

No truer statement, has ever been made by Jimmy-san.....

it is just in his world, the Laws of Physics don't exist.....

 

[Jim Rojas]

No truer statement, has ever been made by Jimmy-san.....

it is just in his world, the Laws of Physics don't exist.....

The laws of physics is irrelevant to our discussion. We are trying to
solve an electronic circuit issue.

Jim Rojas

 

[Josepi]

Tell him where an AAA cell can co0gen feed the HV line to his house.


On 12/22/2010 11:58 AM, Jim Rojas wrote:
*IF* the 110V version 'works', then consider this:

Because the upper and lower circuit are connected to each 110V supply as
they are, the positive peak on L1 (with respect to the N of the upper
ckt) occurs at the same moment that the N of the lower circuit is also
positive (with respect to L2).

So when the Q2 of the upper ckt is conducting, so is the Q2 of the lower
ckt. That connects L1 of the upper ckt to the N of the lower ckt.
Similarly, when Q3 is conducting in the upper ckt, so is Q3 of the lower
ckt, connecting the N of the upper ckt with L2 of the lower ckt.

Finally, remember that N of the upper ckt is connected to the same
neutral bus in the service panel as the N of the lower ckt. So when
both Q3's are conducting you have a direct short from L2 to N and when
the two Q2's are both conducting, you have a direct short from L1 to N.
Fuses F2 and/or F3 will blow when this occurs.

Rather than trying to get two 110V ckts working side by side (with no
isolation between them), it would be easier to get one 220V ckt working.

But as some others have pointed out, I think you need a lot more than
what you've shown here to have a useful grid-tie inverter.

daestrom

 

[you]

The laws of physics is irrelevant to our discussion. We are trying to
solve an electronic circuit issue.

Jim Rojas

and the above is, EXACTLY why, Jimmy-san will never solve anything....

Hey DUFUS... the Laws of Physics are the natural Laws that govern ALL
electric, and electronic issues..... Duh....

 

[Jim Rojas]

and the above is, EXACTLY why, Jimmy-san will never solve anything....

Hey DUFUS... the Laws of Physics are the natural Laws that govern ALL
electric, and electronic issues..... Duh....

That same law is also preventing you from providing anything useful.
Take off the lead helmet. You have electrons that are trapped inside
that thick skull of yours.

Jim Rojas

 

[Josepi]

He has been demonstrating this circuit in these groups for several years
now.
He apparently isn't capable of understanding a schematic or wiring it.


<boB> wrote in message It's a simple circuit.... Hook it up.

Let us know how it goes.


boB

 

[Jim Rojas]

He has been demonstrating this circuit in these groups for several years
now.
He apparently isn't capable of understanding a schematic or wiring it.


<boB> wrote in message It's a simple circuit.... Hook it up.

Let us know how it goes.


boB

I have the circuit running on a single phase for 3 years now. I am
asking for help on getting it setup on 220v. I am no electrical
engineer, so my knowledge is limited to trial and error. No one here is
able to come up with a solution.

If I connect a second circuit in parallel to the first, it works fine.
The minute I connect it to the 2nd Hot AC line, a fuse blows. So I
replaced the fuses with resettable DC circuit breakers.

Jim Rojas

 

[Josepi]

You will not be able to acheive two voltages 180 degrees out of phase on in
phase without some isolation. It isn't possible.

It also isn't possible to backfeed a 120 Vac supply (180 volts peak) from a
3 volt or even a 48 volt dc supply without some voltage level
transformation. Since your circuit has none and you claim it is working
successfully you are only looking like a complete fool and a liar.

Now get real or go away. You are losing (have lost) listeners very quickly.
I went ovet this same garbage with you last year as well as other people,
also. Any person with any real circuit experience can see this is a bad joke
that has been played on you and made you look very foolish.

I am not being nasty in any way. Find a real electrical guy (Radio, TV guy,
not an electrician...most couldn't tell your ass from a thyroid, control
circuit guy or electrical eng.) and show him/her this circuit. Then listen
to them and stop the nonsense before it cascades on you here.

He has been demonstrating this circuit in these groups for several years
now.
He apparently isn't capable of understanding a schematic or wiring it.


<boB> wrote in message It's a simple circuit.... Hook it up.

Let us know how it goes.


boB

I have the circuit running on a single phase for 3 years now. I am
asking for help on getting it setup on 220v. I am no electrical
engineer, so my knowledge is limited to trial and error. No one here is
able to come up with a solution.

If I connect a second circuit in parallel to the first, it works fine.
The minute I connect it to the 2nd Hot AC line, a fuse blows. So I
replaced the fuses with resettable DC circuit breakers.

Jim Rojas