>Hi Chris,
>
>
>At 11:43 16/08/98 -0400, mbgupta@julian.uwo.ca wrote:
>>At 04:06 PM 8/16/98 +1000, you wrote:
>
>>Interesting, but it does not explain why only 2 watts was being measured
at
>>the battery end? Are you saying the ammeter was not able to respond fast
>>enough to show the true amperage? if not one could conclude that other 198
>>watts was coming form ZPE or something?
>
>
>No ZPE here - conclude nothing! It is a simple trick. The ammeter is
>measuring current at the water electrodes while voltage is taken at the
>main input supply.
>
>
>>I don't get this either. If additional speed is being generated with a
>>higher load then what is supplying the energy to do this? Is the rise in
>>speed temporary and coming form the stored inertia and comes to a stand
>>still after a while? or is continuos? Sorry for the dum questions I am
sure
>>I am missing something.
>>
>>Thx for your help
>>
>>Chris Gupta
>
>
>What happens is that as the rotor magnets are inductively coupled to the
>output coils there is a magnetic flux linkage across the airgap between the
>magnet and coil poles. When the pole gap is 'loose' (large gap), the flux
>coupling becomes sensitive to the response time of the output coil. By
>arranging the system so that the flux coupling frequency is higher that the
>coil response time, there can be a decoupling effect between magnets and
>coils. This simply means that, from the coils point of view, the magnet
>poles race past too quickly for complete flux coupling to occur. When this
>happens induction to the coil decreases (decreasing output power) and the
>magnetic drag experienced by the rotor also decreases. Less drag means less
>load which in turn allows the rotor to increase RPM.
>
>Regards, Bill.
A very good explanation Bill.
You get the same sort of effect on a large power generator (50MW).
They make some real strange noises when you under excite them to the point
of what we term "pole slipping". This is when the magnetic flux link is
'broken' and the rotor speeds up until it synchronises again which will
brake it quickly.I woder what would happen if it was left to it's own
devices? The generator protection usually kicks in and stops any violent
effects.
As an aside here,
We have very large yellow and black notices posted around the output
terminals which warn of magnetic fields and thier danger to pacemakers, and
also the maximum work period in the vicinity of three hours.
Our company refutes the claims of EMR damage to humans but posts the signs!
Colin M......