Body
Thanks George,
I wasn't sure anyone understood..... it seemed to fall on deaf ears.
Hope you got some of the wet stuff up your way.
Gerry
On Thu, Oct 4, 2018 at 3:52 PM george gray [email protected]
[EVGRAY] <[email protected]> wrote:
>
>
> Gerry,
>
> Good info mate, thanks.
>
> George
>
> On Tuesday, 2 October 2018, 8:49:58 am AEST, Gerry [email protected]
> [EVGRAY] <[email protected]> wrote:
>
>
>
>
> Hi Lutz,
> It takes certain amount of energy to magnetise the core of a transformer
> allowing for losses & inefficiencies in the core etc.
> In DC and alternating circuits, input power is worked from Volts x Amps.
> (without mentioning power factor).
> In AC circuits both the input Volts and the Amps alternate between
> positive and negative.
>
> When we multiply Volts times Amps, if both are positive we get positive
> answer or if both Volts and Amps are negative we also get positive answer.
> If we can introduce a time delay to either the Volts or the Amps, so that
> one of them is Negative whilst the other is still Positive. Then the +ve
> Volts x -ve Amps will give a negative answer.
>
> If input power calculation is Negative it means the flow of power is
> reversed and the load is supplying power to the power source. A sort of
> Negative resistance effect.
>
> Tesla's method was to introduce this delay by placing layers of insulated
> fine steel wire between primary and secondary windings (at right angles).
>
> It takes a certain time for each layer of Iron wire to become fully
> magnetised and the primary flux, has to fully saturate each layer before
> being transmitted to the next Iron wire layer.
>
> Eventually the primary input flux caused by the primary input current
> reaches the secondary winding and induces an output Voltage.
> Giving Tesla the times delay he was after.
>
> The load then starts to draw it's own current creating it's own magnetic
> field but it also has to negotiate the Iron wire layers to get back to the
> Primary.
> And by this time the phase of the input Volts has already reversed
> direction.
>
> Gerry
>
>
>
>