Posted by krw@att.bizzzzzzzzzzzz on April 13, 2011, 4:06 am
wrote:
>> On 4/10/2011 10:02 PM Bruce Richmond spake thus:
>>
>>
>>
>>
>>
>>
>> >> That second statement is correct: you can't "push" electrons into
>> >> the grid. But it doesn't matter *how* your inverters are working;
>> >> it's a basic law of physics.
>>
>> > If you apply more volts to a line than what it is carrying what do you
>> > think happens? I run machines that use regenerative braking. They
>> > draw energy from the line to set things in motion. To slow or stop
>> > them the electric motor acts as a generator producing a higher voltage
>> > than the grid, forcing power back into the grid. An inverter can do
>> > the same thing using solid state circuits. The inverter in my Prius
>> > takes DC current from the battery and converts it to whatever voltage
>> > and frequency is needed at the time to run the variable frequency AC
>> > motor. When slowing down the motor becomes an AC generator and the
>> > inverter converts the output to a DC voltage just a bit higher than
>> > the battery, pumping charge back into it.
>>
>> Sorry, I don't think you know what you're talking about.
>If you do a little research I think you will change your mind.
>http://en.wikipedia.org/wiki/Grid_tie_inverter
>At the bottom of that page you will find this link
>http://www.solarpanelsplus.com/solar-inverters/How-Solar-Inverters-Work-With-Solar-Panels.pdf
>> You seem to think that you can "force" or push "voltage" into a line, by
>> using a higher voltage than what's on the line.
>More specificly I wrote, "forcing power back into the grid". Power is
>watts or KW. That's volts times amps.
But watts is *not* volts times amps, in an AC circuit. There is a power
factor in there to worry about. In the capacitor example, watts dissipated is
zero (or close to it) but VA might be rather high.
>The current will only flow if there is a difference in voltage.
Correct. Ohms Law.
Posted by David Nebenzahl on April 13, 2011, 4:23 am
On 4/12/2011 9:06 PM krw@att.bizzzzzzzzzzzz spake thus:
>> The current will only flow if there is a difference in voltage.
>
> Correct. Ohms Law.
That is *not* Ohm's Law. Where do you get that? Sheesh--you're trying to
lecture *me* on this stuff???
--
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Posted by krw@att.bizzzzzzzzzzzz on April 14, 2011, 1:07 am
wrote:
>On 4/12/2011 9:06 PM krw@att.bizzzzzzzzzzzz spake thus:
>>> The current will only flow if there is a difference in voltage.
>>
>> Correct. Ohms Law.
>That is *not* Ohm's Law. Where do you get that? Sheesh--you're trying to
>lecture *me* on this stuff???
E=IR, certainly *IS* Ohm's law. I and E are proportional. You can't increase
I without increasing E. Get it? I suppose not.
Posted by vaughn on April 14, 2011, 1:33 am
> E=IR, certainly *IS* Ohm's law. I and E are proportional. You can't increase
> I without increasing E.
Wrong. You CAN increase I without increasing E. You have 3 variables in that
formula, not just 2.
>Get it? I suppose not.
Apparently not.
Vaughn
>
Posted by krw@att.bizzzzzzzzzzzz on April 14, 2011, 3:38 am
wrote:
>>
>> E=IR, certainly *IS* Ohm's law. I and E are proportional. You can't increase
>> I without increasing E.
>Wrong. You CAN increase I without increasing E. You have 3 variables in that
>formula, not just 2.
Dumbass, it's a fixed circuit.
> >Get it? I suppose not.
>Apparently not.
You've only proved that you're just as stupid as David.
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>>
>>
>>
>>
>>
>>
>> >> That second statement is correct: you can't "push" electrons into
>> >> the grid. But it doesn't matter *how* your inverters are working;
>> >> it's a basic law of physics.
>>
>> > If you apply more volts to a line than what it is carrying what do you
>> > think happens? I run machines that use regenerative braking. They
>> > draw energy from the line to set things in motion. To slow or stop
>> > them the electric motor acts as a generator producing a higher voltage
>> > than the grid, forcing power back into the grid. An inverter can do
>> > the same thing using solid state circuits. The inverter in my Prius
>> > takes DC current from the battery and converts it to whatever voltage
>> > and frequency is needed at the time to run the variable frequency AC
>> > motor. When slowing down the motor becomes an AC generator and the
>> > inverter converts the output to a DC voltage just a bit higher than
>> > the battery, pumping charge back into it.
>>
>> Sorry, I don't think you know what you're talking about.
>If you do a little research I think you will change your mind.
>http://en.wikipedia.org/wiki/Grid_tie_inverter
>At the bottom of that page you will find this link
>http://www.solarpanelsplus.com/solar-inverters/How-Solar-Inverters-Work-With-Solar-Panels.pdf
>> You seem to think that you can "force" or push "voltage" into a line, by
>> using a higher voltage than what's on the line.
>More specificly I wrote, "forcing power back into the grid". Power is
>watts or KW. That's volts times amps.